JPH0479825B2 - - Google Patents
Info
- Publication number
- JPH0479825B2 JPH0479825B2 JP63165222A JP16522288A JPH0479825B2 JP H0479825 B2 JPH0479825 B2 JP H0479825B2 JP 63165222 A JP63165222 A JP 63165222A JP 16522288 A JP16522288 A JP 16522288A JP H0479825 B2 JPH0479825 B2 JP H0479825B2
- Authority
- JP
- Japan
- Prior art keywords
- fluid material
- base plate
- light
- photocurable
- hardened portion
- 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 - Lifetime
Links
- 239000012530 fluid Substances 0.000 claims description 72
- 239000000463 material Substances 0.000 claims description 64
- 238000000034 method Methods 0.000 claims description 20
- 239000007787 solid Substances 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 16
- 230000015572 biosynthetic process Effects 0.000 claims description 13
- 230000003287 optical effect Effects 0.000 claims description 13
- 238000004062 sedimentation Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 description 12
- 238000003754 machining Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- 206010034972 Photosensitivity reaction Diseases 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 229920002601 oligoester Polymers 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000036211 photosensitivity Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical compound C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/124—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
- B29C64/129—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
- B29C64/135—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、光及び光硬化性流動物質を用いて所
望形状の固体を形成する光学的造形法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an optical modeling method for forming a solid body of a desired shape using light and a photocurable fluid material.
従来の技術及びその問題点
従来、鋳型製作時に必要とされる製品形状に対
応する模型、或いは切削加工の倣い制御用又は形
彫放電加工電極用の模型の製作は、手加工によ
り、或いはNCフライス盤等を用いたNC切削加
工により行なわれていた。しかしながら、手加工
による場合は多くの手間と熟練とを要するという
問題が存し、NC切削加工による場合は、刃物の
刃先形状変更のための交換や磨耗等を考慮した複
雑な工作プログラムを作る必要があると共に、加
工面に生じた段を除くために更に仕上げ加工を必
要とする場合があるという問題が存していた。Conventional technology and its problems Conventionally, models corresponding to the product shape required during mold production, models for tracing control in cutting machining, or models for die-sinking electric discharge machining electrodes have been produced by hand processing or by using an NC milling machine. This was done by NC cutting using tools such as. However, when using manual machining, there is a problem in that it requires a lot of time and skill, and when using NC machining, it is necessary to create a complicated machining program that takes into account replacement and wear to change the shape of the cutting edge. In addition, there is a problem in that additional finishing machining may be required to remove steps formed on the machined surface.
このような問題を解決するものとして、本発明
者は、第２図に示す光学的造形法を提案している
（特開昭60−247515号、特開昭62−101408号）。該
方法の１実施態様は、光硬化性流動物質Ａを容器
５１内に収容し、支持棒３に支持されたベースプ
レート２を、上方からの光照射により流動物質Ａ
上面からベースプレート２上面に及ぶ連続した硬
化部分が得られる深さとなるように流動物質Ａ中
に沈め、該流動物質Ａの上方から凸レンズ等の光
収束器４を介して選択的に光照射を行い、該流動
物質Ａ上面からベースプレート２上面に及ぶ硬化
部分を形成し、更に該硬化部分上において前記深
さに相当する深さをなすよう、ベースプレート２
を流動物質Ａ中に沈降させ、該流動物質Ａの上方
から選択的光照射を行つて前記硬化部分から連続
して上方へ延びた硬化部分を形成し、これらベー
スプレート２の沈降及び硬化部分の形成を繰り返
して所望形状の固体を形成するものである。第２
図に示す硬化部分Ｂは、前記所望形状の固体を形
成する途上での段階的硬化が繰り返されているも
のである。 In order to solve these problems, the present inventor has proposed an optical modeling method shown in FIG. 2 (Japanese Patent Laid-Open Nos. 60-247515 and 62-101408). In one embodiment of the method, a photocurable fluid material A is housed in a container 51, and a base plate 2 supported by a support rod 3 is irradiated with light from above.
It is immersed in the fluid material A to a depth that provides a continuous hardened portion extending from the upper surface to the upper surface of the base plate 2, and selectively irradiated with light from above the fluid material A via a light converging device 4 such as a convex lens. , forming a hardened portion extending from the upper surface of the fluid substance A to the upper surface of the base plate 2, and further forming a hardened portion on the hardened portion to a depth corresponding to the above-mentioned depth.
is precipitated in a fluid material A, selectively irradiated with light from above the fluid material A to form a hardened portion extending continuously upward from the hardened portion, and the base plate 2 is settled and the hardened portion is formed. This process is repeated to form a solid in the desired shape. Second
The hardened portion B shown in the figure is one in which stepwise hardening is repeated during the formation of a solid having the desired shape.
一般に、光硬化性流動物質は、その温度上昇と
ともに粘度が低下する性質を有している。従つ
て、上述の如く、硬化部分Ｂ上に連続した硬化部
分が得られる深さだけベースプレート２を下降さ
せて該硬化部分Ｂ上に流動物質Ａを流入付加する
場合、該ベースプレート２の下降距離が極めて僅
かであることから、流動物質Ａを加熱して該流動
物質Ａの粘度を低くしておけば、上記流入付加に
要する時間を短縮することが出来る。更に、光硬
化性流動物質は、その温度上昇とともに光感度が
良好になるという特性を有している。従つて、上
記の如くに流動物質Ａを加熱することにより、該
流動物質Ａを低エネルギの光照射でもつて硬化さ
せることができ、通常用いるのと同じ光エネルギ
を有する光の照射にあつては、流動物質Ａを硬化
させるに要する時間を短縮させることもできる。 Generally, a photocurable fluid substance has a property that its viscosity decreases as its temperature increases. Therefore, as described above, when the base plate 2 is lowered to a depth that provides a continuous hardened portion on the hardened portion B and the fluid substance A is added onto the hardened portion B, the descending distance of the base plate 2 is Since the amount is extremely small, if the fluid material A is heated to lower the viscosity of the fluid material A, the time required for the above-mentioned inflow addition can be shortened. Furthermore, the photocurable fluid material has the property that its photosensitivity improves as its temperature increases. Therefore, by heating the fluid material A as described above, it is possible to harden the fluid material A even with low energy light irradiation, and when irradiated with light having the same light energy as normally used, the fluid material A can be hardened. , it is also possible to shorten the time required to harden the fluid material A.
このような光硬化性流動物質の温度上昇に伴う
特性を利用するため、従来は、第３図に示すよう
に容器５１′内に電気ヒータ５２を設置し、該電
気ヒータ５２を用いて容器５１′内光硬化性流動
物質Ａの全体を加熱し、更に温度センサ５３等を
用いて温度制御を行い、該流動物質Ａを設置温度
に保持していた。しかしながら、このような流動
物質加熱方法においては、容器５１′内の全流動
物質Ａを、先ず設定温度にまで加熱しなければな
らず、流動物質Ａの量が多い場合には、固体形成
に適切な温度まで加熱するのに特に長時間を要
し、これを短縮するには、大電力及び大容量の電
気ヒータを要するという問題があつた。例えば、
１m3の光硬化性流動物質を20℃から50℃に昇温さ
せるには、該流動物質の比熱が略１であることか
ら、
106×（50−20）＝３×107［cal］
の加熱エネルギー要する。３相200ボルトの電源
を用いて上記エネルギを得るには、
0.24×√３×200×Ｉ×Ｔ×3600＝３×107
（Ｉ：所要電流、Ｔ：所要時間）
の式から、約100／Ｔ［アンペア］の電流Ｉを要す
る。所要時間Ｔを１時間とした場合、100アンペ
アの電流を要し、34kwもの電力を要することに
なる。単相100ボルト電源であれば、所要電流は
346アンペアにも達する。実際には、外気への放
熱を伴うため、より大きい値の電流、電力を必要
とし、これを換言すれば、100アンペア以上もの
電流、34kw以上もの電力を印加しても、電源投
入後から固体形成開始までに１時間を要する。ま
た、この場合、一般の３相200ボルトの電力配線
に換えて、大容量の電力配線を用いなければなら
ない。 In order to take advantage of the characteristics of the photocurable fluid material as the temperature rises, conventionally an electric heater 52 is installed inside the container 51' as shown in FIG. The entire photocurable fluid material A was heated, and the temperature was controlled using a temperature sensor 53 or the like to maintain the fluid material A at the installation temperature. However, in such a fluid material heating method, all the fluid material A in the container 51' must first be heated to a set temperature, and if the amount of fluid material A is large, it is necessary to heat the entire fluid material A in the container 51' to a temperature suitable for solid formation. There is a problem in that it takes a particularly long time to heat up to a certain temperature, and to shorten this time a large amount of electric power and a large capacity electric heater are required. for example,
In order to raise the temperature of 1 m 3 of photocurable fluid material from 20°C to 50°C, since the specific heat of the fluid material is approximately 1, 10 6 × (50-20) = 3 × 10 7 [cal] of heating energy is required. To obtain the above energy using a 3-phase 200 volt power supply, approximately 100 A current I of /T [ampere] is required. If the required time T is 1 hour, a current of 100 amperes and 34 kW of power will be required. For a single phase 100 volt power supply, the required current is
It can reach up to 346 amps. In reality, as heat is dissipated to the outside air, a larger value of current and power is required. It takes one hour to start forming. Also, in this case, large-capacity power wiring must be used in place of the general three-phase 200-volt power wiring.
本発明の目的は、上記問題点を解決し、少ない
エネルギの使用で済み、しかも固体形成の準備
後、短時間で該固体形成の開始をすることができ
る光学的造形法を提供することにある。 An object of the present invention is to provide an optical modeling method that solves the above-mentioned problems, requires less energy, and can start forming a solid in a short time after preparation for forming the solid. .
問題点を解決するための手段
本発明の前記目的は、光により硬化する光硬化
性流動物質を容器内に収容し、上下方向に延びる
支持棒に支持されたベースプレートを該流動物質
中に浸漬し、前記ベースプレートを、光照射によ
り該流動物質上面からベースプレート上面に及ぶ
連続した硬化部分が得られる深さとなるように位
置決めし、該流動物質に光を選択的に照射して該
流動物質上面からベースプレート上面に及ぶ硬化
部分を形成し、更に該硬化部分上において前記深
さに相当する深さをなすように前記ベースプレー
トを沈降させ、前記光硬化性流動物質に選択的に
光照射を行つて前記硬化部分から連続して延びた
硬化部分を形成し、これらベースプレートの沈降
及び硬化部分の形成を繰り返して所望形状の固体
を形成する光学的造形法であつて、前記ベースプ
レートとして加熱装置を具備したものを使用し、
該加熱装置を用いて前記ベースプレート上の硬化
させるべき光硬化性流動物質を加熱しつつ前記固
体形成を行うことを特徴とする光学的造形法によ
り達成される。Means for Solving the Problems The object of the present invention is to house a photocurable fluid material that hardens with light in a container, and to immerse a base plate supported by a support rod extending in the vertical direction into the fluid material. , the base plate is positioned at a depth such that a continuous hardened portion extending from the upper surface of the fluid material to the upper surface of the base plate is obtained by light irradiation, and the light is selectively irradiated to the fluid material to harden the base plate from the upper surface of the fluid material. forming a hardened portion extending to the upper surface, further lowering the base plate to a depth corresponding to the depth above the hardening portion, and selectively irradiating the photocurable fluid material with light to harden the material; An optical modeling method in which a solid part of a desired shape is formed by forming a hardened part continuously extending from the base plate and repeating the settling of the base plate and the formation of the hardened part, and the base plate is equipped with a heating device. use,
This is achieved by an optical modeling method characterized in that the solid formation is performed while heating the photocurable fluid material to be cured on the base plate using the heating device.
前記光硬化性流動物質としては、光照射により
硬化する種々の物質を用いることができ、例えば
変性ポリウレタンメタクリレート、オリゴエステ
ルアクリレート、ウレタンアクリレート、エポキ
シアクリレート、感光性ポリイミド、アミノアル
キドを挙げることができる。 As the photocurable fluid substance, various substances that are cured by light irradiation can be used, such as modified polyurethane methacrylate, oligoester acrylate, urethane acrylate, epoxy acrylate, photosensitive polyimide, and amino alkyd.
該光硬化性流動物質に、予め顔料、セラミツク
ス粉、金属粉等の改質用材料を混入したものを使
用してもよい。 The photocurable fluid substance may be mixed with a modifying material such as pigment, ceramic powder, metal powder, etc. in advance.
前記光としては、使用する光硬化性流動物質に
応じ、可視光、紫外光等種々の光を用いることが
できる。該光は通常の光としてもよいが、レーザ
光とすることにより、エネルギレベルを高めて造
形時間を短縮し、良好な集光性を利用して造形精
度を向上させ得るという利点を得ることができ
る。 As the light, various types of light such as visible light and ultraviolet light can be used depending on the photocurable fluid material used. Although the light may be ordinary light, using laser light has the advantages of increasing the energy level, shortening the modeling time, and improving the modeling accuracy by utilizing good light focusing. can.
実施例
以下に、本発明の実施例を、添付図面を参照し
つつ説明する。Embodiments Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
第１図は、本発明方法を実施するための装置の
１例を示す。該装置は、光硬化性流動物質Ａを収
容する容器１と、上下方向に延びる支持棒３の下
端部に支持されたベースプレート２と、容器１上
方の光源から発せられた光を容器１中の流動物質
Ａ上面近傍で点状に収束させる光収束器４とを備
え、流動物質Ａに対し光照射位置を相対的に移動
させるようになつている。ベースプレート２は、
固体形成の基台となる平板状のプレート本体２′
と、該プレート本体２′の直下に支持された電気
ヒータ５とを備えている。プレート本体２′には、
その上面から下面に達する貫通孔７が多数分散形
成されており、電気ヒータ５は、プレート本体
２′と略同じ拡がりを有している。光源及び光収
束器４は、容器１外に固定されており、容器１に
対し、主に水平方向に移動する。この光学的造形
装置における光収束器４は、凸レンズであるが、
例えば光を反射し収束させる凹面鏡であつてもよ
い。 FIG. 1 shows an example of an apparatus for carrying out the method of the invention. This device consists of a container 1 containing a photocurable fluid material A, a base plate 2 supported at the lower end of a support rod 3 extending in the vertical direction, and a light emitted from a light source above the container 1 into the container 1. A light converging device 4 is provided to converge the light into a point near the upper surface of the fluid material A, and the light irradiation position is moved relative to the fluid material A. Base plate 2 is
Flat plate body 2' that serves as the base for solid formation
and an electric heater 5 supported directly below the plate body 2'. In the plate body 2',
A large number of through holes 7 extending from the upper surface to the lower surface are formed in a distributed manner, and the electric heater 5 has approximately the same extent as the plate body 2'. The light source and light concentrator 4 are fixed outside the container 1 and move mainly in the horizontal direction with respect to the container 1. The light converging device 4 in this optical modeling device is a convex lens,
For example, it may be a concave mirror that reflects and converges light.
また、ベースプレート２を支持する支持棒３も
容器１外に固定され、該容器１に対し垂直方向に
移動する。 Further, a support rod 3 that supports the base plate 2 is also fixed outside the container 1 and moves in a direction perpendicular to the container 1.
上記光源及び光収束器４の移動制御、又は支持
棒３の移動制御は、NC等の自動制御や人手によ
る制御等、適宜に行うことができる。 The movement control of the light source and light converging device 4 or the movement control of the support rod 3 can be performed as appropriate, such as automatic control such as NC, manual control, etc.
本装置を用いて所望形状の固体の造形を行うに
は、先ず容器１に光硬化性流動物質Ａを入れ、つ
ぎに支持棒３を降下させてベースプレート２を流
動物質Ａ中に浸漬し、上方からの光照射に基づき
流動物質Ａ上面からベースプレート２上面に及ぶ
連続した硬化部分が得られる深さとなるように該
ベースプレート２を位置決めする。該位置決め
後、電気ヒータ５を通電により加熱する。これに
より、電気ヒータ５近傍の加熱された流動物質Ａ
は、プレート本体２′の貫通孔７及び該プレート
本体周縁部近傍を通つて上昇し、対流によつて電
気ヒータ５上面から液面までの領域の流動物質Ａ
が温度上昇する。この後は、ベースプレート２よ
り上方の流動物質Ａが所定温度を保つように電気
ヒータ５を連続的又は断続的に通電しつつ、前述
のように、ベースプレート２の沈降と、光照射に
よる硬化部分の形成とを繰り返して所望形状の固
体を形成する。なお、流動物質Ａは、流動物質上
面付近に設置された温度センサ８の温度検知に基
づき、設定温度範囲内に保持される。 In order to model a solid object in a desired shape using this device, first put the photocurable fluid material A into the container 1, then lower the support rod 3 to immerse the base plate 2 in the fluid material A, and then The base plate 2 is positioned at a depth such that a continuous hardened portion extending from the upper surface of the fluid substance A to the upper surface of the base plate 2 is obtained based on the light irradiation from the base plate 2. After the positioning, the electric heater 5 is heated by electricity. As a result, the heated fluid material A near the electric heater 5
The fluid substance A rises through the through hole 7 of the plate body 2' and near the peripheral edge of the plate body, and due to convection, the fluid substance A in the area from the top surface of the electric heater 5 to the liquid level
temperature rises. After that, the electric heater 5 is continuously or intermittently energized so that the fluid material A above the base plate 2 maintains a predetermined temperature, and as described above, the base plate 2 settles and the hardened portion is cured by light irradiation. This process is repeated to form a solid having a desired shape. Note that the fluid material A is maintained within a set temperature range based on temperature detection by a temperature sensor 8 installed near the upper surface of the fluid material.
この造形法実施の過程において、プレート本体
２′上面及び電気ヒータ５上面は、流動物質上面
から極めて僅かな距離をもつて浸漬されているた
め、容器１内の流動物質Ａの量にかかわらず、該
流動物質上面とベースプレート２上面との間の流
動物質Ａは、極めて短時間で設定温度にまで加熱
され、有利な温度下での光照射による固体形成が
可能となる。また、ベースプレート２の沈降速度
は、例えば１時間に約10mmと極めて遅く、該ベー
スプレート２の１度の沈降距離は極めて僅かであ
り、硬化部分上に流入付加される流動物質Ａは、
短時間で設定温度にまで加熱される。 In the process of implementing this modeling method, the top surface of the plate body 2' and the top surface of the electric heater 5 are immersed at a very small distance from the top surface of the fluid material, so regardless of the amount of fluid material A in the container 1, The fluid material A between the upper surface of the fluid material and the upper surface of the base plate 2 is heated to a set temperature in a very short time, and solid formation can be achieved by light irradiation at an advantageous temperature. Further, the sedimentation speed of the base plate 2 is extremely slow, for example, about 10 mm per hour, and the sedimentation distance of the base plate 2 per degree is extremely small, and the fluid substance A flowing onto the hardened portion is
It heats up to the set temperature in a short time.
このように、造形初期から造形終了に至るま
で、光硬化性流動物質Ａの初期深さ分及び後の追
加分の加熱は、いずれも極く短時間に行うことが
できるので、）流動物質Ａの粘度低下に基づく
硬化部分上への流入付加時間の短縮、）付加さ
れた流動物質Ａの硬化に要する時間の短縮、が
各々確実に得られ、新たな硬化部分の形成に要す
る時間が速められ、所望形状の造形固体形成を迅
速に行い得る。 In this way, from the beginning of modeling to the end of modeling, the initial depth of the photocurable fluid material A and the subsequent additional heating can be done in a very short time. A reduction in the additional time required for the flow of the material to flow onto the hardened portion due to a decrease in the viscosity of the fluid substance A, and a reduction in the time required for the hardening of the added fluid substance A are each reliably achieved, and the time required for the formation of a new hardened portion is accelerated. , it is possible to quickly form a shaped solid in a desired shape.
以下に、上記方法に基づき行つた光硬化性流動
物質の加熱実験を説明する。 Below, a heating experiment of a photocurable fluid material conducted based on the above method will be explained.
光硬化性流動物質としてSP1507（昭和高分子(株)
製の光硬化性流動物質）を用い、該流動物質
56000c.c.を、幅600mm×奥行き400mm×高さ300mmの
容器内に入れた。また、プレート本体として幅
550mm×奥行き350mmのものを使用し、該プレート
本体下面に長さ500mmの電気ヒータ線を60mmピツ
チで取付けた。先ず、該プレート本体上面と流動
物質上面との距離が20mmとなるように、ベースプ
レートを流動物質中に浸漬し、1500wの電力を前
記電気ヒータに供給した。20℃であつたベースプ
レート上の光硬化性流動物質は、通電開始から15
分後に、固体形成開始を行い得る温度にまで上昇
した。実際には、ベースプレート上面又は硬化部
分上面と流動物質上面との距離は、上述の如く極
めて僅かであるため、前記電力供給後、固体形成
開始までに要する時間は、極めて短い時間とな
る。 SP1507 (Showa Kobunshi Co., Ltd.) as a photocurable fluid material
A photocurable fluid material manufactured by
56000 c.c. was placed in a container measuring 600 mm wide x 400 mm deep x 300 mm high. In addition, the width as the plate body
A plate measuring 550 mm x 350 mm in depth was used, and electric heater wires with a length of 500 mm were attached to the lower surface of the plate body at a pitch of 60 mm. First, the base plate was immersed in the fluid material so that the distance between the top surface of the plate body and the top surface of the fluid material was 20 mm, and 1500 W of power was supplied to the electric heater. The photocurable fluid material on the base plate, which was heated to 20°C, was heated to 15°C from the start of energization.
After a few minutes, the temperature rose to such a level that solid formation could begin. In reality, since the distance between the upper surface of the base plate or the upper surface of the hardened portion and the upper surface of the fluid material is extremely small as described above, the time required for solid formation to start after the power is supplied is extremely short.
なお、上記実施例においては、ベースプレート
として電気ヒータをプレート本体直下に具備した
ものを使用したが、温水等の熱媒体を循環させる
ものなど、種々の加熱装置を採用できる。また、
プレート本体内に加熱装置を具備してもよい。 In the above embodiment, a base plate equipped with an electric heater directly below the plate body was used, but various heating devices may be used, such as one that circulates a heat medium such as hot water. Also,
A heating device may be provided within the plate body.
発明の効果
以上から明らかなように、本発明によれば、ベ
ースプレートとして加熱装置を具備したものを使
用し、該加熱装置を用いてベースプレート上の硬
化させるべき光硬化性流動物質を加熱しつつ固体
形成を行うので、該加熱に要するエネルギを少量
とすることができ、しかも固体形成準備完了後、
短時間で該固体形成を開始することができるとい
う優れた効果を奏する光学的造形法を提供するこ
とができる。Effects of the Invention As is clear from the above, according to the present invention, a base plate equipped with a heating device is used, and the heating device is used to heat the photocurable fluid material to be cured on the base plate while solidifying it. Since the formation is carried out, the energy required for the heating can be reduced to a small amount, and furthermore, after the preparation for solid formation is completed,
It is possible to provide an optical modeling method that has the excellent effect of being able to start forming the solid in a short time.
第１図ａ，ｂは本発明の１実施例にかかる光学
的造形法を段階的に示す説明図、第２図は従来の
光学的造形法の１例を示す説明図、第３図は従来
の光学的造形法の他の例を示す説明図である。
１……容器、２……ベースプレート、３……支
持棒、４……光収束器、５……電気ヒータ、１０
……硬化部分、Ａ……光硬化性流動物質。
Figures 1a and b are explanatory diagrams showing step-by-step an optical modeling method according to an embodiment of the present invention, Figure 2 is an explanatory diagram showing an example of a conventional optical modeling method, and Figure 3 is an explanatory diagram showing a conventional optical modeling method. FIG. 3 is an explanatory diagram showing another example of the optical modeling method. DESCRIPTION OF SYMBOLS 1... Container, 2... Base plate, 3... Support rod, 4... Light concentrator, 5... Electric heater, 10
...Curing part, A...Photocurable fluid material.
Claims (1)
に収容し、上下方向に延びる支持棒に支持された
ベースプレートを該流動物質中に浸漬し、前記ベ
ースプレートを、光照射により該流動物質上面か
らベースプレート上面に及ぶ連続した硬化部分が
得られる深さとなるように位置決めし、該流動物
質に光を選択的に照射して該流動物質上面からベ
ースプレート上面に及ぶ硬化部分を形成し、更に
該硬化部分上において前記深さに相当する深さを
なすように前記ベースプレートを沈降させ、前記
光硬化性流動物質に選択的に光照射を行つて前記
硬化部分から連続して延びた硬化部分を形成し、
これらベースプレートの沈降及び硬化部分の形成
を繰り返して所望形状の固体を形成する光学的造
形法であつて、前記ベースプレートとして加熱装
置を具備したものを使用し、該加熱装置を用いて
前記ベースプレート上の硬化させるべき光硬化性
流動物質を加熱しつつ前記固体形成を行うことを
特徴とする光学的造形法。1. A photocurable fluid material that is hardened by light is placed in a container, a base plate supported by a support rod extending in the vertical direction is immersed in the fluid material, and the base plate is irradiated with light to remove the base plate from the top surface of the fluid material. The fluid material is positioned to a depth that provides a continuous hardened portion that extends to the upper surface, and the fluid material is selectively irradiated with light to form a hardened portion that extends from the upper surface of the fluid material to the upper surface of the base plate. , the base plate is lowered to a depth corresponding to the depth, and the photocurable fluid material is selectively irradiated with light to form a cured portion that extends continuously from the cured portion;
It is an optical modeling method in which a solid body having a desired shape is formed by repeating the sedimentation and formation of a hardened portion of the base plate, and the base plate is equipped with a heating device, and the heating device is used to An optical modeling method characterized in that the solid formation is performed while heating a photocurable fluid material to be cured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63165222A JPH0214133A (en) | 1988-07-01 | 1988-07-01 | Optical shaping method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63165222A JPH0214133A (en) | 1988-07-01 | 1988-07-01 | Optical shaping method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0214133A JPH0214133A (en) | 1990-01-18 |
| JPH0479825B2 true JPH0479825B2 (en) | 1992-12-17 |
Family
ID=15808173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63165222A Granted JPH0214133A (en) | 1988-07-01 | 1988-07-01 | Optical shaping method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0214133A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2737195B2 (en) * | 1988-12-28 | 1998-04-08 | ソニー株式会社 | 3D shape forming device |
| US20070075461A1 (en) * | 2005-09-30 | 2007-04-05 | 3D Systems, Inc. | Rapid prototyping and manufacturing system and method |
| TWI727109B (en) | 2017-03-20 | 2021-05-11 | 台達電子工業股份有限公司 | Three-dimensional light curing system and vat heating device |
| CN108248032B (en) * | 2018-01-02 | 2020-01-31 | 哈尔滨工业大学 | 3D printing apparatus for printing liquid by embedding printing spray heads |
-
1988
- 1988-07-01 JP JP63165222A patent/JPH0214133A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0214133A (en) | 1990-01-18 |
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