JPH0262346B2 - - Google Patents
Info
- Publication number
- JPH0262346B2 JPH0262346B2 JP16305886A JP16305886A JPH0262346B2 JP H0262346 B2 JPH0262346 B2 JP H0262346B2 JP 16305886 A JP16305886 A JP 16305886A JP 16305886 A JP16305886 A JP 16305886A JP H0262346 B2 JPH0262346 B2 JP H0262346B2
- Authority
- JP
- Japan
- Prior art keywords
- blade
- steel layer
- edge
- mild steel
- cutting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 25
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 description 16
- 238000000227 grinding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Landscapes
- Forging (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、片刃物つまりシングルエツジ
（Single edge）刃物の製造法、詳しくは、双刃物
の利点を兼ね備えたシングルエツジ刃物を効率的
に製作することができる新方法に関するもので、
例えば鎌、鉈、斧、中華庖丁、鉋、小刃等の製作
に利用できるものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a method for manufacturing a single-edged tool, that is, a single-edge tool, and more specifically, a method for efficiently manufacturing a single-edge tool that has the advantages of a double-edged tool. It is about a new method that can
For example, it can be used to make sickles, hatchets, axes, Chinese knives, planes, small blades, etc.
周知のとおり刃物は、切断機能を発揮する刃鋼
部分と、これを補強する軟鋼部つまり地鉄の部分
とを有している。そして、従来汎用されている刃
物には刃鋼層が刃体裏面に略全域に露出し刃体表
面の軟鋼層面にエツジを形成した所謂シングルエ
ツジ刃物と、刃物鋼が軟鋼層によつてサンドウイ
ツチされ、両面の軟鋼層端縁にエツジを形成した
ダブルエツジ（双刃）刃物とが存する。しかし
て、刃鋼鈑材の露出部分が多いので、刃先の切れ
味、切り込みの効果がよいという長所を持つてい
る反面、刃先が脆くて欠け易く、また刃が研ぎ難
いという短所をもつている。他方、ダブルエツジ
刃物においては、軟鋼鈑材の被覆部分が多いの
で、刃欠けが生じ難く、また刃も研ぎ易いという
長所を持つている反面、刃鋼材でサンドイツチ状
に挟まれているので、シングルエツジ刃物に較
べ、刃の切れ味・切り込みが劣るという問題点が
あつた。
As is well known, a knife has a steel part that performs a cutting function and a mild steel part that reinforces the steel part. Conventionally, general-purpose knives include so-called single-edge knives, in which the blade steel layer is exposed over almost the entire area on the back of the blade and edges are formed on the mild steel layer on the front surface of the blade, and blade steel in which the blade steel is sandwiched between a mild steel layer. There are also double-edge (double-edged) knives in which edges are formed on the edges of the mild steel layers on both sides. However, since there is a large exposed portion of the blade steel plate material, it has the advantage that the cutting edge is sharp and the cutting effect is good, but it also has the disadvantage that the cutting edge is brittle and easily chipped, and the blade is difficult to sharpen. On the other hand, double edge cutlery has many parts covered with mild steel sheet material, so the blade is less prone to chipping, and the blade is also easier to sharpen. There was a problem that the sharpness and cutting depth of the blade was inferior to that of knives.
そこで、本発明者は前記問題点を解決するため
種々考察した結果、シングルエツジ刃物の利点を
そのままに保有しながら、同時にダブルエツジ刃
物の利点をも併せ持つた強靭にして鋭利、しかも
耐久性の秀れたシングルエツジ刃物を効率的に製
造できる方法を完成したのである。
Therefore, as a result of various considerations to solve the above-mentioned problems, the inventor of the present invention has developed a product that is strong, sharp, and has excellent durability, while retaining the advantages of single-edge cutlery, and at the same time also has the advantages of double-edge cutlery. They completed a method for efficiently manufacturing single-edge cutlery.
即ち、本発明によれば、刃鋼層１を挟んで、一
側には薄軟鋼層２、もう一側には厚軟鋼層３を有
するクラツド鈑Ｃが素材とし、このクラツド鈑Ｃ
の薄軟鋼層２の端縁を所要範囲に亙つて殺ぎ取つ
た後、この殺ぎ面４に対して変形圧力を加えるこ
とにより、当該クラツド鈑Ｃの一端縁に刃鋼層
１′が露出するように塑性変形を生ぜしめ、次い
で刃鋼層１′が露出せる端縁の薄軟鋼層３を斜面
状に削去してエツジ部５を形成することを特徴と
するシングルエツジ刃物の製造法が提供される。 That is, according to the present invention, the material is a clad plate C having a thin mild steel layer 2 on one side and a thick mild steel layer 3 on the other side with the blade steel layer 1 in between.
After cutting off the edge of the thin mild steel layer 2 over a required range, deforming pressure is applied to the cutting surface 4 to expose the blade steel layer 1' at one end edge of the clad plate C. A method for producing a single-edge cutter, which is characterized in that the thin mild steel layer 3 at the edge where the blade steel layer 1' is exposed is removed in a slope shape to form an edge portion 5. is provided.
しかして、本発明においては、刃鋼層１の両側
に薄・厚軟鋼層２，３をサンドイツチ状に鍛接し
たクラツド鈑Ｃを使用する。このようなクラツド
鈑Ｃは、例えば、刃鋼鈑材の両側に軟鋼鈑材を密
に重合し、その接触辺縁を溶着して接合面から外
気を遮断した後、所定の鍛接温度の下に圧延する
ことによつて両材料の接触面を治金的に接着して
クラツド材を得る方法（特公昭24−3314号公報参
照）の如き従来公知の方法によつて得られる。な
お、本発明において使用する刃鋼層１や薄・厚軟
鋼層２，３は、通常の刃物に使用されているもの
でよい。例えば、刃鋼層１の素材としては、「JIS
Ｇ 4403、SK−５」に代表される一般市販品を
用いることができる。一方、軟鋼層２，３の素材
としては、「JIS Ｇ 3101、SS材」に代表される
一般市販品を用いることができる。 Therefore, in the present invention, a clad plate C is used, in which thin and thick mild steel layers 2 and 3 are forged-welded on both sides of a blade steel layer 1 in a sandwich arch shape. Such a clad plate C, for example, is made by densely superimposing mild steel plate material on both sides of a blade steel plate material, welding the contact edges to block outside air from the joint surface, and then subjecting it to a predetermined forge welding temperature. It can be obtained by a conventionally known method such as a method of metallurgically bonding the contact surfaces of both materials by rolling to obtain a clad material (see Japanese Patent Publication No. 3314/1983). The blade steel layer 1 and the thin and thick mild steel layers 2 and 3 used in the present invention may be those used in ordinary blades. For example, the material for blade steel layer 1 is "JIS
General commercially available products such as G 4403 and SK-5 can be used. On the other hand, as the material for the mild steel layers 2 and 3, general commercial products such as "JIS G 3101, SS material" can be used.
上記の方法によつて得られたクラツドＣ鈑は、
刃物の種類によつて若干の相違があるものの、概
ね次のような工程を経て刃物に仕上げる。即ち、
荒伸ばし仕上げ伸ばし焼鈍荒研削焼入れ
焼戻歪み補正刃研ぎの各工程に付するので
ある。 The clad C plate obtained by the above method is
Although there are slight differences depending on the type of cutlery, the process to create a cutlery is generally as follows. That is,
It is subjected to each process of rough stretching, finishing stretching, annealing, rough grinding, quenching, tempering, distortion correction, and blade sharpening.
本発明においては、前記荒研削工程において次
のような手段を採る。即ち、荒研削の際、刃体の
裏面となるべき軟鋼層２の端縁部分を殺ぎ取つて
殺ぎ面４を形成する。然る後、前記殺ぎ面４に対
して面状に変形圧力を加えると、面一に並んで所
要幅だけ刃鋼層１′が露出することになるのであ
る。この工程を経ることによつて、刃体裏面の薄
軟層２の端縁部においては、軟鋼層２が塑性変形
によつて後退され、切取りに必要な幅量だけ刃鋼
層１′が露出するのである。 In the present invention, the following measures are taken in the rough grinding step. That is, during rough grinding, the cutting surface 4 is formed by cutting off the edge portion of the mild steel layer 2 that is to become the back surface of the blade. Thereafter, when a planar deformation pressure is applied to the cutting surface 4, the blade steel layer 1' is exposed by a required width in a line flush with the cutting surface 4. By going through this process, the mild steel layer 2 is pushed back by plastic deformation at the edge of the thin soft layer 2 on the back surface of the blade, and the blade steel layer 1' is exposed by the width necessary for cutting. That's what I do.
次に、刃体表面となるべき厚軟鋼層３の端縁及
び刃鋼層１′を切削し、刃先を形成する。かくし
て、刃物としての基本的形態が整うことになつて
いるのである。 Next, the edge of the thick mild steel layer 3 that will become the surface of the blade and the blade steel layer 1' are cut to form a cutting edge. In this way, the basic form of a knife is in place.
以上説明したとおりであるので、本発明によつ
て得られる刃物は、刃鋼層が、切刃部を除いては
両側から軟鋼層によつてサンドイツチ状に補強さ
れており、切刃部においては刃鋼層が刃体表面に
露出しているので、切れ味・切り込みがよい。ま
た、刃物表面においては、軟鋼鈑材の被覆部分が
多いので、刃先に靭性があつて欠け難くい。更
に、刃体表面も軟鋼層で被覆されているので、実
に研ぎ易い。つまり、本発明によつて得られる刃
物の刃は、片刃面タイプの刃物の刃の長所と所謂
両刃面タイプの物の刃の長所とを兼備したもので
ある。本発明は、このような優れた新規な刃物の
刃を簡単に製造することができるものである。
As explained above, in the knife obtained by the present invention, the blade steel layer is reinforced in a sandwich-like manner by mild steel layers on both sides except for the cutting edge, and in the cutting edge, The blade steel layer is exposed on the surface of the blade, resulting in good sharpness and cutting. Furthermore, since the surface of the blade is covered with a large portion of mild steel sheet material, the blade edge has toughness and is less likely to chip. Furthermore, since the blade surface is also coated with a layer of mild steel, it is really easy to sharpen. In other words, the blade of a cutlery obtained by the present invention has both the advantages of a single-edged type cutter blade and the advantages of a so-called double-edged type cutter blade. The present invention makes it possible to easily manufacture such an excellent new cutlery blade.
第１図は本発明に使用するクラツド材の断面説
明図、第２図は第１図に示すクラツド材の端縁を
殺ぎ取つた状態の断面説明図、第３図は本発明に
よつて得られた刃物の刃の断面説明図を示す。
１，１′……刃鋼層、２……薄軟鋼層、３……
厚軟鋼層、４……殺ぎ面、５……エツジ部、Ｃ…
…クラツド鈑。
Fig. 1 is an explanatory cross-sectional view of the clad material used in the present invention, Fig. 2 is an explanatory cross-sectional view of the clad material shown in Fig. 1 with the edges removed, and Fig. 3 is an explanatory cross-sectional view of the clad material used in the present invention. An explanatory cross-sectional view of the blade of the obtained cutlery is shown. 1, 1'... Blade steel layer, 2... Thin mild steel layer, 3...
Thick mild steel layer, 4...cut surface, 5...edge part, C...
...Cratsud board.
Claims (1)
う一側には厚軟鋼層３を有するクラツド鈑Ｃを素
材とし、このクラツド鈑Ｃの薄軟鋼層２の端縁を
所要範囲に亙つて殺ぎ取つた後、この殺ぎ面４に
対して変形圧力を加えることにより当該クラツド
鈑Ｃの一端縁に刃鋼層１′が露出するように塑性
変形を生ぜしめ、次いで刃鋼層１′が露出させる
端縁の厚軟鋼層３を斜面状に削去してエツジ部５
を形成することを特徴としたシングルエツジ刃物
の製造法。1 A clad plate C having a thin mild steel layer 2 on one side and a thick mild steel layer 3 on the other side with a blade steel layer 1 in between is used as a material, and the edge of the thin mild steel layer 2 of this clad plate C is After killing over a wide area, deformation pressure is applied to the killing surface 4 to cause plastic deformation so that the blade steel layer 1' is exposed at one end edge of the clad plate C, and then the blade is removed. The thick mild steel layer 3 at the edge where the steel layer 1' is exposed is removed in a slope shape to form an edge portion 5.
A method for manufacturing single edge cutlery characterized by forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16305886A JPS6316829A (en) | 1986-07-10 | 1986-07-10 | Manufacture of single edge cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16305886A JPS6316829A (en) | 1986-07-10 | 1986-07-10 | Manufacture of single edge cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6316829A JPS6316829A (en) | 1988-01-23 |
| JPH0262346B2 true JPH0262346B2 (en) | 1990-12-25 |
Family
ID=15766372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16305886A Granted JPS6316829A (en) | 1986-07-10 | 1986-07-10 | Manufacture of single edge cutter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6316829A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69020643T2 (en) * | 1989-05-29 | 1996-02-22 | Matsushita Electric Ind Co Ltd | Tape cassette. |
| DE102005005640A1 (en) * | 2005-02-05 | 2006-09-14 | Zwilling J. A. Henckels Ag | Knife with compression-forged knife drip |
-
1986
- 1986-07-10 JP JP16305886A patent/JPS6316829A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6316829A (en) | 1988-01-23 |
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