JP4899462B2 - Manufacturing method of machined product - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the occurrence of burrs in machining a workpiece by means of fixing agent and easily eliminate fixing agent from the workpiece after machining. <P>SOLUTION: Fixing agent that melts or hardens depending on temperature is heated to melt, and the melted fixing agent 30 is attached to a burr occurrence part of the workpiece 10 (side surface 12), where it is hardened to be fixed to the workpiece 10. The burr occurrence part is then machined with the fixing agent 30. After machining, the workpiece 10 is heated to melt the fixing agent 30, and the fixing agent 30 is eliminated from the workpiece 10. <P>COPYRIGHT: (C)2007,JPO&amp;INPIT

Description

  The present invention relates to a method of manufacturing a machined product that can easily remove a fixing agent from a workpiece while machining the workpiece (hereinafter referred to as a workpiece) by preventing the burr by installing the fixing agent on the workpiece. About.

Conventionally, for example, Patent Document 1 proposes a method for preventing the generation of burrs that occur when machining a workpiece. Specifically, in Patent Document 1, a semi-molten or molten water-soluble urea resin is filled into a processed material as a material for preventing burrs, or the processed material is immersed in a molten water-soluble urea resin, A method has been proposed in which a water-soluble urea resin is adhered to a work material and solidified, and then the work material is machined, and the work material is washed with water after the work to remove the water-soluble urea resin that is in close contact with the work material. .
JP 63-11244 A

  However, in the above conventional technique, a water-soluble urea resin is used to prevent burrs. Since this water-soluble urea resin has good adhesion to the processed material, it is strongly bonded to the processed material. As a result, even if the processed material is washed with water, it cannot be completely removed from the processed material and remains in the processed material. For this reason, in order to completely remove the water-soluble urea resin remaining on the processed material, for example, a process of manually scraping it off using a tool is necessary.

  In addition, although the said prior art describes the case where the burr | flash which generate | occur | produces in a workpiece | work is described, when a workpiece | work starts to be processed, the workpiece | work may also deform | transform.

  In view of the above points, the present invention provides a method of manufacturing a machined product that can easily remove a fixing agent from a workpiece after processing while preventing burr or burr with the fixing agent when processing the workpiece. With the goal.

  In order to achieve the above object, according to the first feature of the present invention, a fixing agent (30) that melts or solidifies according to temperature is heated and melted, and the molten fixing agent adheres to a burr occurrence portion of the workpiece and solidifies. By doing so, the fixing agent is fixed to the part where the burrs are generated. Then, the burr generation | occurrence | production location where the fixing agent was fixed is processed with a fixing agent. Then, the processed workpiece is heated to melt the fixing agent, and the fixing agent is removed from the workpiece.

  According to such a method, after the workpiece is processed, the fixing agent can be liquefied by heating and melting the fixing agent installed at the burr occurrence portion of the workpiece. Can be removed from. When removing the fixing agent in this way, if the melting point of the fixing agent is set lower than the temperature of the hot water, the fixing agent can be easily melted simply by pouring hot water into the fixing agent. Can be washed away.

  In addition, since the fixing agent is fixed in close contact with the burr occurrence portion of the workpiece, it is possible to prevent the occurrence of burrs or the like when the workpiece is processed.

  The burr occurrence location preferably includes at least a location where a tool for machining the workpiece is directed from the workpiece toward the fixing agent. That is, since a burr | flash generate | occur | produces when the process part of a tool leaves | separates from a workpiece | work, it is preferable to install a fixing agent in the above burr generation | occurrence | production places or a to-be-processed part. Thereby, generation | occurrence | production of a burr | flash can be suppressed.

  In the second feature of the present invention, the fixing agent (30) that melts or solidifies according to the temperature is heated and melted, and the molten fixing agent adheres to the workpiece (10, 40) to be processed and solidifies. Fix it. Thereafter, the part to be processed on which the fixing agent is fixed is processed together with the fixing agent. Then, the processed workpiece is heated to melt the fixing agent, and the fixing agent is removed from the workpiece.

  According to such a method, after processing the workpiece, the fixing agent can be liquefied by heating and melting the fixing agent installed in the work portion of the workpiece. Can be removed from. Similarly to the above, it is possible to wash away with hot water.

  Further, since the fixing agent is fixed in close contact with the part to be processed of the workpiece, it is possible to prevent the occurrence of burrs or the like when the workpiece is processed.

  It is preferable that the part to be processed includes at least a place where a tool for processing a workpiece faces the fixing agent from the workpiece, as described above.

  As the fixing agent, a material mainly composed of paraffin or polyethylene glycol can be used.

  Furthermore, as paraffin, the paraffin which combined the normal paraffin and non-normal paraffin shown in the following (1)-(5) can also be used. In addition,% of the composition ratio is all by weight. Further, the temperature difference between the melting start temperature and the melting end temperature of the paraffin is preferably 5 ° C. or less as described later, but is preferably a smaller temperature difference. Below, it shows about the thing with the small temperature difference.

(1) Paraffin composed of the total components of normal paraffin 88.999% and the balance non-normal paraffin “Composition of normal paraffin”
C18 normal paraffin: 0.08%
Normal paraffin with 19 carbon atoms: 0.41%
Normal paraffin having 20 carbon atoms: 1.76%
Normal paraffin having 21 carbon atoms: 5.61%
Normal paraffin with 22 carbon atoms: 10.66%
Normal paraffin having 23 carbon atoms: 14.76%
C24 normal paraffin: 14.50%
Normal paraffin having 25 carbon atoms: 12.42%
Normal paraffin having 26 carbon atoms: 9.08%
Normal paraffin having 27 carbon atoms: 6.58%
Normal paraffin having 28 carbon atoms: 4.04%
Normal paraffin with 29 carbon atoms: 2.88%
Normal paraffin with 30 carbon atoms: 2.09%
C 31 normal paraffin: 1.50%
C32 normal paraffin: 1.02%
C33 normal paraffin: 0.72%
C34 normal paraffin: 0.37%
C35 normal paraffin: 0.24%
Normal paraffin with 36 carbon atoms: 0.14%
Normal paraffin with 37 carbon atoms: 0.08%
Normal paraffin with 38 carbon atoms: 0.05%
As described above, the total component of normal paraffin is 89.99%, and the balance is non-normal paraffin.

  The average carbon number of the paraffin having the composition (1) is 24.74, and the standard deviation of the molecular weight distribution is 2.86. The smaller the standard deviation, the sharper the molecular weight distribution. In addition, the paraffin having the composition (1) has a maximum molecular weight of 534 and a minimum molecular weight of 254. Accordingly, the molecular weight distribution width is 280.

  The melting start temperature of the paraffin having the composition (1) is 50.4 ° C., and the melting end temperature is 51.7 ° C. Therefore, the temperature difference between the melting start temperature and the melting end temperature can be set to a slight value of 1.3 ° C.

(2) Paraffin consisting of 88.64% total components of normal paraffin and the remaining non-normal paraffin “Composition of normal paraffin”
C18 normal paraffin: 0.07%
Normal paraffin with 19 carbon atoms: 0.28%
Normal paraffin having 20 carbon atoms: 1.10%
Normal paraffin having 21 carbon atoms: 3.38%
Normal paraffin having 22 carbon atoms: 6.92%
Normal paraffin having 23 carbon atoms: 10.86%
Normal paraffin having 24 carbon atoms: 12.67%
Normal paraffin having 25 carbon atoms: 12.74%
Normal paraffin with 26 carbon atoms: 11.17%
Normal paraffin having 27 carbon atoms: 9.18%
Normal paraffin having 28 carbon atoms: 6.43%
Normal paraffin with 29 carbon atoms: 4.73%
Normal paraffin with 30 carbon atoms: 3.01%
Normal paraffin with 31 carbon atoms: 2.16%
Normal paraffin with 32 carbon atoms: 1.42%
C33 normal paraffin: 0.98%
C34 normal paraffin: 0.55%
C35 normal paraffin: 0.36%
Normal paraffin with 36 carbon atoms: 0.22%
Normal paraffin with 37 carbon atoms: 0.15%
Normal paraffin with 38 carbon atoms: 0.11%
Normal paraffin with 39 carbon atoms: 0.09%
Normal paraffin with 40 carbon atoms: 0.06%
As described above, the total of normal paraffin components is 88.64%, and the balance is non-normal paraffin.

  The average carbon number of the paraffin having the composition (2) is 25.61, the standard deviation of the molecular weight distribution is 3.05, the maximum molecular weight is 562, and the minimum molecular weight is 254. Accordingly, the molecular weight distribution width 366 is obtained. The melting start temperature of the paraffin having the composition (2) is 52.5 ° C., and the melting end temperature is 53.7 ° C. Therefore, the temperature difference between the melting start temperature and the melting end temperature can be set to a slight value of 1.2 ° C.

(3) Paraffin consisting of 89.57% total of normal paraffin components and the rest non-normal paraffin “Composition of normal paraffin”
Normal paraffin with 19 carbon atoms: 0.09%
Normal paraffin with 20 carbon atoms: 0.34%
Normal paraffin with 21 carbon atoms: 1.31%
C22 normal paraffin: 3.50%
Normal paraffin having 23 carbon atoms: 7.09%
Normal paraffin with 24 carbon atoms: 10.36%
Normal paraffin with 25 carbon atoms: 12.57%
Normal paraffin having 26 carbon atoms: 12.68%
Normal paraffin having 27 carbon atoms: 11.75%
Normal paraffin having 28 carbon atoms: 8.80%
Normal paraffin having 29 carbon atoms: 6.99%
Normal paraffin with 30 carbon atoms: 4.74%
C 31 normal paraffin: 3.41%
C32 normal paraffin: 2.42%
C33 normal paraffin: 1.70%
C34 normal paraffin: 0.93%
C35 normal paraffin: 0.54%
Normal paraffin with 36 carbon atoms: 0.25%
Normal paraffin with 37 carbon atoms: 0.10%
As described above, the total component of normal paraffin is 89.57%, and the balance is non-normal paraffin.

  The paraffin having the composition (3) has an average carbon number of 26.56, a standard deviation of the molecular weight distribution of 2.94, a maximum molecular weight of 520, and a minimum molecular weight of 268. Accordingly, the molecular weight distribution width is 252. The melting start temperature of the paraffin having the composition (3) is 54.6 ° C., and the melting end temperature is 55.6 ° C. Therefore, the temperature difference between the melting start temperature and the melting end temperature can be set to a slight value of 1.0 ° C.

(4) Paraffin composed of 71.11% total of normal paraffin components and the remaining non-normal paraffin “Composition of normal paraffin”
C23 normal paraffin: 0.08%
Normal paraffin having 24 carbon atoms: 0.16%
Normal paraffin with 25 carbon atoms: 0.39%
Normal paraffin with 26 carbon atoms: 0.87%
Normal paraffin with 27 carbons: 1.52%
C 28 normal paraffin: 1.99%
Normal paraffin with 29 carbon atoms: 2.68%
C30 normal paraffin: 3.14%
C 31 normal paraffin: 3.71%
C32 normal paraffin: 3.94%
Normal paraffin having 33 carbon atoms: 4.07%
C34 normal paraffin: 4.37%
C35 normal paraffin: 4.94%
C36 normal paraffin: 5.49%
Normal paraffin with 37 carbon atoms: 6.00%
Normal paraffin with 38 carbon atoms: 5.44%
Normal paraffin with 39 carbon atoms: 4.50%
C 40 normal paraffin: 3.71%
Normal paraffin having 41 carbon atoms: 3.01%
C42 normal paraffin: 2.53%
Normal paraffin having 43 carbon atoms: 1.94%
Normal paraffin having 44 carbon atoms: 1.55%
C45 normal paraffin: 1.06%
C 46 normal paraffin: 0.84%
47 normal carbon paraffin: 0.58%
48 normal carbon paraffin: 0.45%
Normal paraffin with 49 carbons: 0.33%
Normal paraffin with 50 carbon atoms: 0.32%
Normal paraffin with 51 carbon atoms: 0.26%
Normal paraffin with 52 carbons: 0.21%
Normal paraffin with 53 carbon atoms: 0.19%
Normal paraffin with 54 carbon atoms: 0.17%
Normal paraffin with 55 carbon atoms: 0.15%
Normal paraffin with 56 carbon atoms: 0.13%
Normal paraffin with 57 carbon atoms: 0.11%
Normal paraffin with 58 carbon atoms: 0.09%
Normal paraffin with 59 carbon atoms: 0.08%
C 60 normal paraffin: 0.06%
C 61 normal paraffin: 0.05%
As described above, the total component of normal paraffin is 71.11%, and the balance is non-normal paraffin.

  The paraffin having the composition (4) has an average carbon number of 36.34, a standard deviation of molecular weight distribution of 5.70, a maximum molecular weight of 856, and a minimum molecular weight of 324. Accordingly, the molecular weight distribution width is 532. The melting start temperature of the paraffin of this composition (4) is 72.1 ° C., and the melting end temperature is 73.4 ° C. Therefore, the temperature difference between the melting start temperature and the melting end temperature can be set to a slight value of 1.3 ° C.

(5) Paraffin composed of 75.78% total of normal paraffin components and the rest non-normal paraffin “Composition of normal paraffin”
Normal paraffin with 29 carbon atoms: 0.08%
Normal paraffin with 30 carbon atoms: 0.23%
Normal paraffin with 31 carbon atoms: 0.69%
C32 normal paraffin: 1.36%
C33 normal paraffin: 1.77%
C 34 normal paraffin: 2.02%
Normal paraffin with 35 carbons: 2.21%
Normal paraffin with 36 carbon atoms: 2.41%
Normal paraffin with 37 carbon atoms: 3.02%
Normal paraffin with 38 carbon atoms: 3.58%
Normal paraffin with 39 carbon atoms: 3.52%
40 normal carbon paraffin: 3.94%
Normal paraffin having 41 carbon atoms: 4.13%
C42 normal paraffin: 5.15%
Normal paraffin having 43 carbon atoms: 4.95%
Normal paraffin having 44 carbon atoms: 5.54%
C45 normal paraffin: 4.55%
C 46 normal paraffin: 4.71%
47 normal carbon paraffin: 3.53%
48 normal carbon paraffin: 3.08%
Normal paraffin having 49 carbon atoms: 2.38%
C 50 normal paraffin: 2.16%
Normal paraffin with 51 carbon atoms: 1.68%
Normal paraffin with 52 carbons: 1.35%
Normal paraffin with 53 carbon atoms: 1.21%
54 normal carbon paraffin: 1.00%
Normal paraffin with 55 carbon atoms: 0.85%
Normal paraffin with 56 carbon atoms: 0.80%
Normal paraffin with 57 carbon atoms: 0.63%
C 58 normal paraffin: 0.59%
Normal paraffin with 59 carbon atoms: 0.49%
C 60 normal paraffin: 0.41%
Normal paraffin with 61 carbons: 0.34%
Normal paraffin with 62 carbons: 0.38%
Normal paraffin with 63 carbon atoms: 0.36%
64 normal carbon paraffin: 0.30%
C 65 normal paraffin: 0.23%
66 normal carbon paraffin: 0.15%
As described above, the total component of normal paraffin is 75.78%, and the balance is non-normal paraffin.

  The paraffin having the composition (5) has an average carbon number of 43.69, a standard deviation of molecular weight distribution of 6.81, a maximum molecular weight of 926, and a minimum molecular weight of 408. Therefore, the molecular weight distribution width is 518. The melting start temperature of the paraffin having the composition (5) is 86.2 ° C., and the melting end temperature is 87.9 ° C. Therefore, the temperature difference between the melting start temperature and the melting end temperature can be set to a slight value of 1.7 ° C.

  Moreover, the following can be used as polyethylene glycol. For example, polyethylene glycol having an average molecular weight of 1540 has a melting start temperature: 46 ° C. and a melting end temperature: 47.2 ° C. Therefore, the temperature difference between the melting start temperature and the melting end temperature can be set to a slight value of 1.2 ° C.

  Polyethylene glycol having an average molecular weight of 4000 has a maximum molecular weight of 5464, a minimum value of 1689, a number average molecular weight Mn: 2866, a weight average molecular weight Mw: 2935, a Z average molecular weight Mz: 3004, a molecular weight distribution dispersity (1 Mw / Mn: 1.0238, Mz / Mw: 1.0237. The polyethylene glycol having an average molecular weight of 4000 has a melting start temperature: 55.1 ° C. and a melting end temperature: 56.4 ° C. Therefore, the temperature difference between the melting start temperature and the melting end temperature can be set to a very small value of 1.3 ° C.

  Furthermore, a mixture of shellac resin (for example, powder) and rosin (for example, powder) as a fixing agent can be used. As powdered shellac used, particle size: 180 microns or less, appearance is brown, softening point: about 80 ° C., solid specific gravity at 20 ° C .: 1.02-1.12, volatile content: 2.0%, warm alcohol insoluble A component having a minute content of 0.21% and a wax content of 3.31% can be used. On the other hand, the powdery rosin having a particle size of 180 microns or less, the appearance is amber, and the softening point is 81 ° C. and the solid specific gravity at 25 ° C. is 1.05 can be used. Since the shellac resin is a thermosetting natural resin, the thermosetting reaction progresses to a certain extent by heating and changes its quality. And it becomes so strong that heating temperature is high and heating time is long.

  In the above case, it is preferable to use a fixing agent having a hardness equal to or higher than the hardness of the workpiece. At this time, by adding an additive to the fixing agent, the hardness of the fixing agent can be set to be higher than the hardness of the workpiece.

  For example, when hardness is required, for example, 0 wt% to 99 wt% of a metal material or the like can be added to 1 wt% to 100 wt% of the fixing agent. However, since the viscosity increases as the amount added increases, viscosity adjustment (or hardness adjustment) according to the purpose is required. Examples of additives to be added to the fixing agent include (1) ceramic materials (most ceramic materials such as alumina, SiC, Si, silicon nitride, and glass materials), (2) carbon, and (3) natural materials (paper, (Most materials such as wool, fiber, silk, bamboo, pine, cedar, and other naturally occurring materials), (4) resin materials (most resin materials such as PET, fluororesin, vinyl chloride, epoxy resin), (5 ) Powders of metal materials (most metal materials such as iron, aluminum, copper, SUS, brass, etc.) can be mixed, and the hardness of the fixing agent can be adjusted according to these additives and their addition amount.

  Further, the melting start temperature and the melting end temperature of the fixing agent can be set within a range of 18 ° C. to 140 ° C. (temperature increases by adding shellac resin).

  In order to realize such a melting start temperature or melting end temperature range, for example, (1) a ceramic material, (2) a carbon material, (3) a natural material, and (4) a resin material as described above for paraffin, for example. The hardness of the fixing agent can be set, and the melting point of the fixing agent can be set, for example, between 18 to 140 ° C. (temperature increases by adding shellac resin). Thus, the material added to paraffin or the like can be set according to the material of the workpiece to be processed. That is, the viscosity, hardness, melting point, etc. of the fixing agent can be freely designed according to the material added to the paraffin. This makes it possible to prepare an optimum fixing agent for processing.

  Further, a fixing agent having a temperature difference between the melting start temperature and the melting end temperature of 5 ° C. or less can be used. This temperature difference is preferably as small as possible, and the temperature difference is preferably 2 ° C. Moreover, it is more preferable that the temperature difference is 1 ° C., which is smaller as described above.

  In addition, the code | symbol in the bracket | parenthesis of each said means shows the correspondence with the specific means as described in embodiment mentioned later.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following embodiments, the same or equivalent parts are denoted by the same reference numerals in the drawings.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. In the present embodiment, when machining such as cutting, polishing, drilling, drilling, and cutting is performed on the workpiece, the workpiece is processed without causing burrs or burr, and a burr for preventing burrs. The prevention member (fixing agent described later) is easily removed from the workpiece.

  FIG. 1 is a schematic view of a workpiece formed by the manufacturing method according to the present invention. As shown in FIG. 1, the workpiece 10 is configured, for example, as a cubic metal block, and its end surface 11 is polished by, for example, a grindstone.

  Below, the method of grind | polishing the end surface 11 of the workpiece | work 10 is demonstrated. FIG. 2 is a diagram showing a process of polishing the end surface 11 of the workpiece 10 shown in FIG. 1 with a grindstone. Hereinafter, a description will be given with reference to FIG.

  As the first step, when the end surface 11 of the workpiece 10 is subjected to surface polishing, the fixing agent 30 is installed on the side surface 12 as the end surface in the traveling direction of the grindstone 20 with respect to the workpiece 10. The fixing agent 30 is for preventing the workpiece 10 from generating burrs and burr when the workpiece 10 is processed. First, the fixing agent 30 will be described.

  The fixing agent 30 is composed of paraffin as a main component. Specifically, for example, 40% by weight of alumina is added to paraffin. The viscosity of the fixing agent 30 when the fixing agent 30 is melted is, for example, 500 mPa · s to 1000 mPa · s (millipascal second). In addition, since the viscosity of water is 1 mPa · s to 3 mPa · s, the fixing agent 30 having the above viscosity is suitable for the case of attaching to the workpiece 10 and the like. Moreover, what has a paraffin as a main component also includes the thing of a paraffin single-piece | unit.

  Further, as the fixing agent 30, a paraffin added with, for example, 70% by weight of alumina may be employed. The viscosity of the fixing agent 30 when the fixing agent 30 is melted is, for example, 2000 mPa · s to 3000 mPa · s.

  In the present embodiment, the fixing agent 30 has a melting start temperature (melting point) of 53 ° C., for example, and a melting end temperature of 55 ° C. to 58 ° C., for example. That is, the fixing agent 30 has a temperature range of 2 ° C. to 5 ° C., and the change to each state of melting or solidification is completed. For this reason, the fixing agent 30 can be easily melted and solidified only by changing the temperature of the fixing agent 30 by only 2 to 5 ° C. In addition, in order to melt and solidify the fixing agent 30 with a slight temperature difference, it is preferable to use the fixing agent 30 having a temperature difference between the melting start temperature and the melting end temperature of 2 ° C. (or lower).

  The paraffin material is described by a molecular formula of CnHm (n and m are arbitrary integers). Here, when n in the molecular formula decreases, the melting temperature decreases, and when n increases, the melting temperature increases. In other words, a mixture of large and small n results in a wide melting temperature. Therefore, the purity of the paraffin is improved so that the temperature range between the melting start temperature and the melting end temperature is 2 ° C. to 5 ° C. as described above.

  Specifically, the purity of paraffin increases as the molecular weight distribution width of paraffin decreases. For the paraffin material that melts and solidifies at a temperature range of 2 ° C., for example, near room temperature, those having a molecular weight distribution range of about 50 to 3000 are used. Moreover, in the paraffin material which melt | dissolves at 50 degreeC vicinity, a thing with a molecular weight distribution width of 100-10000 is used. Furthermore, the paraffin material that melts at around 90 ° C. preferably has a molecular weight distribution width of 500 to 100,000.

  A method for narrowing the molecular weight distribution range is by purification of paraffin materials. Therefore, the molecular weight distribution width is reduced when purification is performed with high accuracy. If the molecular weight distribution width is narrow, the purity becomes high and the melting temperature width becomes small, so that melting and solidification can occur in a narrow temperature range. This fixing agent 30 can be used no matter how many times melting and solidification are repeated.

  In this embodiment, the melting point of the fixing agent 30 is set to 53 ° C., but the melting point of the fixing agent 30 is, for example, 18 to 100 ° C. by adjusting the molecular weight, the molecular weight distribution width, and the like of paraffin as described above. Can be set by range.

The hardness of the fixing agent 30 is set to be equal to or higher than the hardness of the workpiece 10. This hardness can be set according to the additive added to paraffin and its content. For example, alumina, SiC, Si ₃ N ₄ , SiO ₂ , diamond powder, ceramics, iron material, stainless steel, copper, aluminum and other metals, bakelite, vinyl chloride, B-PET, urea resin, acrylic, Many materials such as resins such as fluororesin and glass can be mixed. The hardness can also be adjusted by adjusting the particle diameter of these additives.

  In the present embodiment, the particle diameter of alumina added to paraffin is 1 μm to 3 μm. As described above, the additive having a larger particle size can increase the hardness of the fixing agent 30, but when the particle is large, it becomes difficult to fill the fixing agent 30 in a narrow place. Therefore, empirically, the additive preferably has a particle size of 100 μm or less.

  As a method for examining the hardness of the workpiece 10, for example, a Vickers hardness meter, a Rockwell hardness meter, a Mohs hardness meter, or the like can be employed. What is necessary is just to investigate the hardness of the workpiece | work 10 using these hardness meters, and to prepare the fixing agent 30 according to the hardness.

  As the fixing agent 30 having the above characteristics, a catamel chuck (trade name, registered trademark, Thermofix, US registered trademark) can be used.

  And the said fixing agent 30 is installed in the to-be-processed part of the workpiece | work 10, specifically the burr generation | occurrence | production location where a burr | flash may generate | occur | produce. These burr generation places or parts to be processed include at least a place where a tool for processing the workpiece 10 is directed from the workpiece 10 toward the fixing agent 30.

  In this embodiment, when the end surface 11 of the workpiece 10 is polished in the traveling direction of the grindstone 20 as shown in FIG. 2, the workpiece 10 and the fixing agent 30 are such that the fixing agent 30 is closer to the traveling direction of the grindstone 20 than the workpiece 10. The arrangement relationship is located in Therefore, as shown in FIG. 2, the fixing agent 30 is disposed on the side surface 12 of the workpiece 10 on the traveling direction side of the grindstone 20 and on the end surface 11 side of the side surface 12. In other words, in the present embodiment, the side surface 12 of the workpiece 10 becomes a burr occurrence location.

  Specifically, the workpiece 10 is kept at a temperature lower by, for example, about 1 ° C. to 5 ° C. than the melting point of the fixing agent 30, and the molten fixing agent 30 is applied to the workpiece 10. When applying in this way, since the viscosity of the fixing agent 30 is high as described above, the work 10 can be placed with a spatula, for example. Further, for example, a method of applying the fixative 30 melted with a dropper or a method of spraying the melted fixative 30 from a heated nozzle to a burr generation portion of the work 10 may be employed.

  In this way, the melted fixing agent 30 adheres to the workpiece 10, and the fixing agent 30 is cooled to a temperature lower than the melting point and solidifies, so that the fixing agent 30 is solidified and brought into close contact with the workpiece 10 to generate burrs. Fixing agent 30 is fixed in place.

  Although it is sufficient that the temperature of the workpiece 10 is lower than the melting point of the fixing agent 30, the fixing agent 30 is rounded on the side surface 12 of the workpiece 10 when the molten fixing agent 30 is applied to the workpiece 10. In order to prevent this, it is preferable to heat the workpiece 10 to a temperature lower than the melting point of the fixing agent 30 and close to the melting point.

  As a second step, the workpiece 10 is polished. That is, as shown in FIG. 2, the grindstone 20 is rotated at, for example, several hundred to several tens of thousands of revolutions, and the end surface 11 of the workpiece 10 is polished. Specifically, the workpiece 10 is processed by relatively moving the grindstone 20 and the workpiece 10. In the present embodiment, the work 10 is fixed to a fixing jig (not shown), and the grindstone 20 is moved with respect to the work 10 to polish the end surface 11 of the work 10. The grindstone 20 may be fixed with a fixing jig, and the workpiece 10 may be moved to polish the end surface 11 of the workpiece 10.

  When the end surface 11 of the workpiece 10 is polished with the grindstone 20 in this manner, the grindstone 20 approaches the vicinity of the side surface 12 of the end surface 11 of the workpiece 10. And the outer edge part of the end surface 11 of the workpiece | work 10 is grind | polished integrally with the fixing agent 30 with the grindstone 20. FIG.

  At this time, since the fixing agent 30 is in close contact with the side surface 12 of the work 10, the force that the grindstone 20 escapes from the side surface 12 of the work 10 is suppressed by the processing stress applied to the outer edge portion of the end surface 11 of the work 10.

  Specifically, when the processing stress of the grindstone 20 is applied to the end surface 11 of the workpiece 10, a force (repulsive force) repelling the processing stress is generated in the workpiece 10. When this processing stress is applied to the outer edge portion of the end surface 11 of the workpiece 10, the repulsive force against the processing stress generated on the workpiece 10 is relieved when the side surface 12 of the workpiece 10 is deformed (that is, becomes burr, burr, etc.). Try to. However, since the fixing agent 30 is in close contact with the side surface 12 of the workpiece 10, the force that causes the side surface 12 of the workpiece 10 to deform is suppressed by the fixing agent 30. That is, a force acting in the opposite direction to the force that the side surface 12 of the workpiece 10 tries to deform acts on the fixing agent 30, and the force is balanced at the interface between the side surface 12 of the workpiece 10 and the fixing agent 30 (offset). ).

  In other words, the workpiece 10 and the fixing agent 30 are an integrated body in which the fixing agent 30 is connected to the side surface 12 of the workpiece 10. For this reason, the force which the grindstone 20 gives to the interface between the side surface 12 of the workpiece 10 and the fixing agent 30 becomes uniform, and the outer edge portion of the end surface 11 of the workpiece 10 does not deform, and the side surface 12 of the workpiece 10 and the fixing agent 30 No burr occurs at the interface. As described above, the end surface 11 of the workpiece 10 can be polished while preventing the burr generated on the workpiece 10 by the fixing agent 30.

  In addition, since the fixing agent 30 is in close contact with the side surface 12 of the workpiece 10, it is possible to prevent the outer edge portion from being chipped by the processing stress applied to the outer edge portion of the end surface 11 of the workpiece 10 by the polishing tool.

  As a third step, the fixing agent 30 is removed. In this embodiment, hot water is poured into the fixing agent 30 and the fixing agent 30 is peeled off from the workpiece 10. Specifically, as described above, since the fixing agent 30 is melted and solidified depending on the temperature, by pouring hot water having a temperature higher than the melting end temperature (55 ° C. to 58 ° C.) of the fixing agent 30 to the workpiece 10, The fixing agent 30 adhered to the side surface 12 of the workpiece 10 is melted and poured off. In this way, the fixing agent 30 is removed from the workpiece 10.

  Note that the workpiece 10 may be immersed in hot water having a temperature equal to or higher than the melting point of the fixing agent 30. When the fixing agent 30 is peeled from the workpiece 10 in this way, the fixing agent 30 floats in hot water because the specific gravity of the fixing agent 30 is smaller than that of water (for example, 0.8 to 0.9). For this reason, the workpiece | work 10 can be wash | cleaned easily. In addition, alumina added to paraffin precipitates in water. Thus, when the workpiece 10 is immersed in hot water, the additive that completely dissolves the paraffin material in the hot water (the paraffin is dissolved in the hot water so that it is dissolved in the liquid even when the temperature is lowered. Put something you can keep). As a result, it is possible to avoid a situation in which the fixing agent 30 is solidified and floats on hot water, and a film of the fixing agent 30 is stretched on the water surface. Further, as a method of further promoting the cleaning effect, there are a method of introducing a cleaning agent as described above, in addition to ultrasonic cleaning and ultrafine bubble cleaning.

  As described above, the workpiece 10 shown in FIG. 1 subjected to machining is completed. Then, the fixing agent 30 removed from the work 10 can be collected and recycled or reused, so that the fixing agent 30 can be used any number of times.

  In the machining method as described above, the state of occurrence of burrs or the like between the case where the fixing agent 30 is installed on the workpiece 10 and the case where the fixing agent 30 is not installed was examined.

  FIG. 3 is a plan view of a work for examining the occurrence of burrs and the like. The workpiece 40 shown in FIG. 3 is a plate-like member made of SUS304, and the size is 100 mm × 50 mm × 3 mm. Further, the work 40 is provided with six through holes 41 to 46 (φ15), and three pieces are arranged in the long side direction of the work 40 in two rows in the short side direction. And among these six through-holes 41-46, the fixing agent 30 is filled into the through-holes 41-43 of one row | line | column, and the fixing agent 30 is not installed in the through-holes 44-46 of the other row | line | column. did.

  Further, the hardness of the fixing agent 30 filled in each of the through holes 41 to 43 of the workpiece 10 was set to the same hardness as that of the workpiece 40.

  And with respect to the workpiece | work 40 shown by FIG. 3, while filling each through-hole 41-43 with the fixing agent 30, the rotation speed of the grindstone 20 is 2500 rpm, the roughness of the eyes is # 400, and the cutting amount is 0.1 mm. The end surface 40a of the workpiece 40 was polished. Then, the state of the edge part of each through-hole 41-46 of the workpiece | work 40 was observed. Note that the fixing agent 30 was removed from the work 40 before observation. The observation results are shown in FIG.

  4 is an enlarged view of each edge portion of each of the through holes 41 to 46 of the work 40 shown in FIG. First, in each of the through holes 41 to 46 provided in the work 40, the one filled with the fixing agent 30 (through holes 41 to 43), as shown in FIGS. Burr etc. did not occur in the part. That is, the fixing agent 30 was able to prevent burrs and the like.

  However, in each of the through holes 41 to 46 provided in the work 40, the one not filled with the fixing agent 30 (through holes 44 to 46), as shown in FIGS. 4D to 4E, Burrs 44a, 45a, and 46a were generated at the edge portions of the through holes 44 to 46, respectively.

  In this manner, by installing the fixing agent 30 in a place where burrs or the like can occur in the workpiece 40, machining can be performed while reliably preventing burrs or the like.

  In addition, what fixed 70 weight% of alumina to the paraffin was prepared as the fixing agent 30, and the machining similar to the above was performed with respect to the workpiece | work 40. FIG. As a result, similar to the above, burrs could be completely prevented in the through holes filled with the fixing agent 30. As described above, the hardness of the fixing agent 30 in which 70% by weight of alumina was added to paraffin was higher than the hardness of the workpiece 40.

  Therefore, when the hardness of the fixing agent 30 was changed and the above polishing process was repeated, it was found that the hardness of the fixing agent 30 is preferably equal to or higher than the hardness of the workpiece 40. The following reasons can be considered for this. That is, since the fixing agent 30 is in close contact with the workpieces 10, 40, the workpiece 10 and the fixing agent 30 are integrated, but are originally separate from each other. Therefore, it is considered that the outer edge portion of the end surface 11 of the workpiece 10 has locally lower strength (for example, toughness) than the center portion of the workpiece 10. For this reason, it is considered that the ease of deformation of the workpieces 10 and 40 can be reliably suppressed by making the hardness of the fixing agent 30 higher than that of the workpieces 10 and 40.

  As described above, the present embodiment is characterized in that after the workpiece 10 is processed together with the fixing agent 30, the fixing agent 30 installed at the burr occurrence portion of the workpiece 10 is heated and melted. Thereby, the fixing agent 30 can be liquefied and the fixing agent 30 can be easily removed from the workpiece 10. That is, conventionally, since the water-soluble urea resin was used, there was a possibility that the urea resin could not be completely removed by washing with water. However, in this embodiment, the fixing agent 30 is melted by heat and is washed off from the workpiece 10. Therefore, the fixing agent 30 can be prevented from remaining on the workpiece 10.

  Further, since the fixing agent 30 is in close contact with the burr generation portion of the workpiece 10 and is integrated with the workpiece 10, when the workpiece 10 is processed, burrs and the like that may be generated on the workpiece 10 due to the processing stress of the tool are prevented. be able to.

  Conventionally, urea resin is used as described above, and depending on the hardness of the resin, there is a possibility that the occurrence of burrs or the like may not be suppressed, but in this embodiment, the hardness is equal to or higher than the hardness of the workpiece 10. Since the fixing agent 30 is used, generation of burrs and the like can be reliably suppressed.

  Furthermore, since the melting point (53 ° C. in this embodiment) of the fixing agent 30 is lower than the melting point (150 ° C.) of the conventional urea resin, the possibility of damaging the workpiece 10 is also reduced.

(Second Embodiment)
In the present embodiment, only different parts from the first embodiment will be described. The present embodiment is characterized in that a workpiece (not shown) made of resin is prepared and burrs and the like are prevented when the workpiece is milled.

  First, the fixing agent 30 prepared by adding 5 to 10% by weight of alumina particles to paraffin is prepared. At this time, the hardness of the fixing agent 30 is adjusted to be approximately the same as the hardness of the resin as the workpiece.

  Then, as in the first embodiment, the fixing agent 30 is brought into close contact with the end portion of the resin workpiece. Thereafter, milling with a cutting depth of, for example, 0.2 mm to 0.3 mm is performed. Thus, even if the workpiece is a resin, since the fixing agent 30 is installed at the burr occurrence location, the occurrence of burr or the like can be prevented.

  As described above, even when a soft workpiece such as a resin is machined, the burr is prevented from being generated in the workpiece by installing the fixing agent 30 in a place where burrs or the like will be generated. be able to. Further, as in the first embodiment, the fixing agent 30 can be easily removed from the workpiece by simply pouring hot water after processing.

  In addition, what is necessary is just to set melting | fusing point of the fixing agent 30 lower than melting | fusing point of a workpiece | work, when using the material which resin melts with hot water as a workpiece | work.

(Third embodiment)
In the present embodiment, only parts different from the first and second embodiments will be described. The present embodiment is characterized in that a workpiece (not shown) configured as a metal hollow pipe is prepared and such a workpiece is turned.

  First, for example, a hollow copper pipe is prepared as a workpiece. In addition, a fixing agent 30 prepared by adding 20 wt% to 40 wt% of alumina to paraffin is prepared. Then, the fixing agent 30 is melted, and the melted fixing agent 30 is filled in the hollow portion of the pipe and applied to the outer wall portion of the pipe, and the fixing agent 30 is cooled and solidified.

  Thereafter, a lathe with a cutting depth of, for example, 0.2 mm to 0.3 mm is performed on the workpiece. Even in this case, since the fixing agent 30 is in close contact with the work and integrated, the work can be processed without causing burrs or burr due to the processing stress applied to the work by the cutting tool.

  As described above, even when a pipe-like workpiece is machined, the fixing agent 30 can prevent burrs and the like. Further, since the fixing agent 30 is installed on the outer wall of the pipe, the cutting tool does not directly contact the pipe, and chipping or the like generated on the surface of the pipe when the cutting tool directly contacts the pipe can be prevented.

(Fourth embodiment)
In the present embodiment, only different parts from the third embodiment will be described. This embodiment demonstrates the case where the workpiece | work as a hollow pipe prepared in 3rd Embodiment is cut | disconnected.

  First, a workpiece and a fixing agent 30 (not shown) shown in the third embodiment are prepared. Then, the fixing agent 30 is melted, and the molten fixing agent 30 is filled in the entire hollow portion of the pipe and attached to the entire outer wall portion of the pipe, and the fixing agent 30 is cooled and solidified to fix the fixing agent 30. To do. In addition, the place which installs the fixing agent 30 with respect to a workpiece | work should just be installed at least in the burr generation | occurrence | production location instead of the whole workpiece | work as mentioned above.

  Thereafter, the workpiece is cut. At this time, the processing stress applied to the workpiece by the cutting blade is received by the fixing agent 30, so that the processing stress tends to escape in the workpiece and deforms the end portion of the workpiece to generate burrs and burr. Can be prevented.

  Moreover, since the fixing agent 30 is filled in the hollow portion of the pipe, the hollow portion of the pipe is in a dense state. Thereby, it can prevent that a pipe deform | transforms with the force which cut | disconnects the pipe of a blade. Similarly, since the fixing agent 30 is installed on the outer wall portion of the pipe, the cutting blade cuts the workpiece together with the fixing agent 30. Thereby, it is possible to prevent the surface of the pipe from being chipped due to the cutting blade directly hitting the outer wall of the pipe.

(Fifth embodiment)
In the present embodiment, only parts different from the first to fourth embodiments will be described. In each of the above embodiments, the fixing agent 30 is mainly composed of paraffin. However, in this embodiment, the fixing agent 30 is mainly composed of powdered shellac resin. To do.

  Specifically, the fixing agent 30 mainly composed of shellac resin will be described. This fixing agent 30 is configured as an equal mixture of non-heated powdered shellac resin: 50% by weight and powdered rosin: 50% by weight. Here, the powdered shellac resin and the powdered rosin are thoroughly mixed in the container and mixed uniformly.

  Powdered shellac resin is a non-heated natural resin purified by a chemical method that does not apply heat, using a solid body of insect resinous secretions, called the scale insect, as a raw material, and is a thermosetting resin. Here, as powdered shellac to be used, particle size: 180 microns or less, appearance is brown, softening point: about 80 ° C., solid specific gravity at 20 ° C .: 1.02-1.12, volatile content: 2.0%, Hot alcohol insoluble matter: 0.21%, wax content: 3.31% were used. Here, the melting temperature of the fixing agent 30 is 20 to 40 ° C. higher than the softening point of the fixing agent 30. That is, the upper limit of the melting temperature range of the fixing agent 30 can be set to 140 ° C.

  The powdered rosin is a natural resin obtained by purifying pine crabs, and is a thermoplastic resin. The powdered rosin used had a particle size of 180 microns or less, an appearance of amber color, a softening point of 81 ° C., and a solid specific gravity at 25 ° C. of 1.05.

The physical properties of the powdery fixative prepared by mixing equal amounts of the above powdered shellac resin: 50% by weight and powdered rosin: 50% by weight were as follows. The Mohs hardness was 2.3, the adhesive strength was 21.9 kg / cm ² , the softening point was 80 ° C., the solid specific gravity at 20 ° C. was 1.03, and the liquid specific gravity at 150 ° C. was 1.00.

  As the fixing agent 30 as described above, a powder fixing agent and a melted product can be prepared. The powder fixing agent is a powder that weighs both of the above powders at a constant ratio and stirs them so that they are well mixed in a uniform ratio in the container, and has not been heat-cured once. On the other hand, the melted product is a product obtained by heating and melting this powder mixture product at 140 ° C. for 1 minute, and then solidifying by cooling to room temperature. Therefore, the fixing agent 30 has been heat-cured once.

  The powdered shellac resin in the powder mixture is unheated and has never undergone a heat-curing reaction, so no alteration due to the heat-curing reaction has occurred. As a result, the adhesive strength of the unheated powder mixture exceeds the melting product in almost the entire range of the rosin addition amount.

  Here, when the amount of rosin added exceeds 95% by weight, the adhesive strength rapidly decreases. Therefore, the upper limit of the amount of rosin added is preferably 95% by weight. On the other hand, if the amount of rosin added decreases to less than 10% by weight, the washing time increases rapidly, so the lower limit of the amount of rosin added is preferably 10% by weight.

  Therefore, the amount of rosin added to the shellac resin is desirably 10% by weight to 95% by weight. In addition, when the rosin addition amount is more specifically set in a range of 35 to 80% by weight, the adhesive strength can be further improved.

  The fixing agent 30 is used to prevent burrs or the like that may occur in the workpiece when machining the workpiece. Specifically, a machining method using the fixing agent 30 will be described.

  First, in this embodiment, the temperature of the fixing agent 30 when the fixing agent 30 melts and becomes liquid is 110 ° C. Therefore, in the present embodiment, 140 ° C., which is a constant temperature (30 ° C.) higher than 110 ° C., is set as the heating temperature of the fixing agent 30 and heated until the temperature of the fixing agent 30 reaches 140 ° C. As a result, the fixing agent 30 is melted and applied in a liquid state to the workpiece.

  Next, the fixing agent 30 is fixed to the workpiece by solidifying the fixing agent 30 by lowering the temperature of the fixing agent 30 from the solidification temperature. Thereafter, machining such as surface polishing for the workpiece is performed. And after completion | finish of a process, the fixing agent 30 is removed from a workpiece | work like said each embodiment.

  The fixing agent 30 used in the present embodiment can be cleaned by dissolving it using a glycol / ether aqueous solution. That is, the fixing agent 30 can be separated from the workpiece by dissolving the fixing agent 30 in the lipophilic layer in the glycol ether aqueous solution. Here, the glycol ether detergent is specifically used in the form of an aqueous solution diluted with water. The glycol ether system is represented by the general formula R—O—An—R, where R is a hydrogen element, methyl group, ethyl group, A is an ethoxy group, propoxy group, and the like, and n is 1 ~ 2.

  As described above, it is possible to suppress the occurrence of burrs and the like of the workpiece by using the fixing agent 30 mainly composed of shellac resin.

(Sixth embodiment)
In the present embodiment, only parts different from the fifth embodiment will be described. In this embodiment, the fixing agent 30 is prepared by mixing non-heated powdered shellac resin: 20% by weight and powdered rosin: 80% by weight. The mixing ratio of shellac resin and rosin is different from that of the fifth embodiment. The physical property values of the fixing agent 30 according to the sixth embodiment were as follows. Adhesive strength: 20.1 kg / cm ² , softening point: 80 ° C.

  According to the sixth embodiment, since the mixing ratio of rosin is higher than that of the fifth embodiment, the cleaning time of the fixing agent 30 with the glycol / ether aqueous solution can be shortened as compared with the fifth embodiment.

(Seventh embodiment)
In the present embodiment, only parts different from the fifth and sixth embodiments will be described. In the seventh embodiment, non-heated powdered shellac resin: 40% by weight and powdered rosin: 50% by weight, and further 10% by weight of powdery alumina having an average particle diameter of 1 micron are used as the fixing agent 30. .

The physical properties of the fixing agent 30 according to the seventh example were as follows. The Mohs hardness was 2.5, the adhesive strength was 16.2 kg / cm ² , the softening point was 80 ° C., and the solid specific gravity at 20 ° C. was 1.13.

  Note that, as a guide for the application temperature of the fixing agent 30, the temperature at which the fixing agent immediately liquefies was examined and found to be 130 ° C. Therefore, it is preferable that the application temperature (heating dissolution temperature) of the fixing agent 30 in the seventh embodiment is higher than that in the fifth and sixth embodiments.

  The fixing agent 30 according to the seventh embodiment has a characteristic that it is less likely to sag because it has a higher viscosity due to the addition of alumina compared to the fifth embodiment. Further, when the workpiece is cut using a grindstone, the fixing agent 30 is difficult to adhere to the blade.

(Eighth embodiment)
In the present embodiment, only parts different from the fifth to seventh embodiments will be described. In the eighth embodiment, non-heated powdered shellac resin: 30% by weight and powdered rosin: 50% by weight, and further, 20% by weight of powdered carbon black are mixed to form the fixing agent 30.

The physical property values of the fixing agent 30 according to the eighth embodiment were as follows. The Mohs hardness was 6.0, the adhesive strength was 15.2 kg / cm ² , the softening point was 80 ° C., the solid specific gravity at 20 ° C. was 1.10, and the volume resistivity was 190 kΩ · cm.

  It should be noted that the temperature at which the fixative 30 was immediately liquefied was found to be 130 ° C. in order to provide a guide for the application temperature of the fixative 30.

  Since the fixing agent 30 according to the eighth embodiment is water-insoluble and conductive, wire electric discharge machining can be performed on the workpiece. Further, the fixing agent 30 according to the eighth embodiment has the characteristics that the viscosity is higher and the hardness is higher than that of the fifth embodiment by adding powdery carbon black.

(Other embodiments)
In each said embodiment, although the metal and resin were demonstrated as the workpiece | work 10, it cannot be overemphasized that the material of the workpiece | work 10 is not limited to these.

  In the above-described embodiment, examples of polishing, milling, lathe, and cutting have been described. However, other machining may be performed. For example, machining such as drilling or drilling may be performed.

  In each of the above embodiments, the melted fixing agent 30 is applied to the workpiece 10, but the solidified fixing agent 30 is placed on the burr generation portion (worked portion) of the workpiece 10 and the workpiece 10 is heated. The fixing agent 30 may be fixed to the workpiece 10 by melting the fixing agent 30, cooling the workpiece 10, and solidifying the fixing agent 30.

  In the said 1st-4th embodiment, although the fixing agent 30 is comprised by what has a paraffin as a main component, you may be comprised by what has polyethyleneglycol as a main component.

  In addition, in the fixing agent 30 in which rosin is mixed with shellac resin, both the adhesive strength of the non-heated powder mixture and the adhesive strength of the melted product as a comparative example are adhesive strength up to 0 to 30% by weight of rosin. When the rosin addition amount is in the range of 35 to 80% by weight, the adhesive strength is improved as compared with the case where the rosin addition amount is in the range of 0 to 30% by weight.

  When the amount of rosin added increases to 80% or more, the adhesive strength tends to rapidly decrease. On the other hand, the cleaning time becomes shorter as the amount of rosin added is larger. In particular, when 10% or more of rosin is added, the effect of shortening the cleaning time is great. That is, if the amount of rosin added is in the range of 10 to 95% by weight, it can be used as the fixing agent 30. .

It is the schematic of the workpiece | work formed by the manufacturing method which concerns on this invention. It is the figure which showed the process of grind | polishing the end surface of the workpiece | work shown by FIG. It is a top view of the workpiece | work for investigating the generation | occurrence | production situation of a burr | flash. It is the figure which expanded the edge part of each through-hole of the workpiece | work shown by FIG.

Explanation of symbols

  10, 40 ... work, 20 ... grinding wheel, 30 ... fixing agent.

Claims (8)

A machine for installing a fixing agent (30) that melts or solidifies in accordance with temperature at a burr generation position in the workpieces (10, 40), and for processing the workpiece, and manufacturing a machined product by the step. A method of manufacturing a workpiece,
The step of machining the workpiece includes:
Heating and melting the fixing agent;
Attaching the melted fixing agent to the burr occurrence site and fixing the fixing agent to the burr generation site by solidifying the fixing agent; and
Processing the burr occurrence location where the fixing agent is fixed together with the fixing agent;
Heating the processed fixative, melting the fixative, and removing the fixative from the workpiece ,
In the step of heating and melting the fixing agent, a machined product manufacturing method using a fixing agent having a hardness equal to or higher than the hardness of the workpiece. Wherein in the step of heating and melting the fixing agent, as the fixing agent, machined product according to claim 1, characterized by using a material obtained by adding additives to the fixing agent so that the above hardness of the workpiece Manufacturing method. A machine for installing a fixing agent (30) that melts or solidifies in accordance with temperature at a burr generation position in the workpieces (10, 40), and for processing the workpiece, and manufacturing a machined product by the step. A method of manufacturing a workpiece,
The step of machining the workpiece includes:
Heating and melting the fixing agent;
Attaching the melted fixing agent to the burr occurrence site and fixing the fixing agent to the burr generation site by solidifying the fixing agent; and
Processing the burr occurrence location where the fixing agent is fixed together with the fixing agent;
Heating the processed fixative, melting the fixative, and removing the fixative from the workpiece ,
In the step of heat-melting the fixing agent, a machined product manufacturing method , wherein the fixing agent has a temperature difference between the melting start temperature and the melting end temperature of 5 ° C. or less . In the step of attaching the melted fixing agent to the burr generation location, as the burr generation location, a tool for processing the workpiece attaches at least the melted fixing agent to a location from the workpiece toward the fixing agent. The method for manufacturing a machined product according to any one of claims 1 to 3, wherein: Machining that includes a step of processing the workpiece while installing a fixing agent (30) that melts or solidifies in accordance with the temperature on the workpiece (10, 40), and processes the workpiece. A method for manufacturing a product,
The step of machining the workpiece includes:
Heating and melting the fixing agent;
Attaching the melted fixing agent to the workpiece and fixing the fixing agent to the workpiece by solidifying the fixing agent;
Processing the part to be processed with the fixing agent fixed together with the fixing agent;
Heating the processed fixative, melting the fixative, and removing the fixative from the workpiece ,
In the step of heating and melting the fixing agent, a machined product manufacturing method using a fixing agent having a hardness equal to or higher than the hardness of the workpiece. In the step of adhering the melted fixing agent to the burr occurrence location, a tool for processing the workpiece from the workpiece toward the fixing agent or a tool for processing the workpiece as the portion to be processed 6. The method of manufacturing a machined product according to claim 5 , wherein at least the molten fixing agent is attached to a place from the fixing agent toward the workpiece. Wherein in the step of heating and melting the fixing agent, as the fixing agent, those mainly composed of paraffin or polyethylene glycol, or any one of claims 1, characterized by using a mixture of the rosin shellac resin 6 The manufacturing method of the machine-worked product as described in one. In the step of heat-melting the fixing agent, the fixing agent having a melting start temperature and a melting end temperature in the range of 18 ° C to 140 ° C is used. A method for producing a machined product according to claim 1.

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