WO1994029047A1 - Procede de moulage a moule original constitue de coquilles en resine - Google Patents
Procede de moulage a moule original constitue de coquilles en resine Download PDFInfo
- Publication number
- WO1994029047A1 WO1994029047A1 PCT/JP1993/000761 JP9300761W WO9429047A1 WO 1994029047 A1 WO1994029047 A1 WO 1994029047A1 JP 9300761 W JP9300761 W JP 9300761W WO 9429047 A1 WO9429047 A1 WO 9429047A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mold
- prototype
- resin
- molten metal
- foam
- Prior art date
Links
- 239000011347 resin Substances 0.000 title claims abstract description 59
- 229920005989 resin Polymers 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000005266 casting Methods 0.000 title abstract 9
- 239000006260 foam Substances 0.000 claims abstract description 31
- 238000000465 moulding Methods 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims description 33
- 238000004519 manufacturing process Methods 0.000 claims description 24
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000000016 photochemical curing Methods 0.000 abstract description 12
- 239000012768 molten material Substances 0.000 abstract 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 12
- 239000007788 liquid Substances 0.000 description 9
- 239000004576 sand Substances 0.000 description 8
- 230000003014 reinforcing effect Effects 0.000 description 6
- 238000001723 curing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000005187 foaming Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 229920006328 Styrofoam Polymers 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 239000008261 styrofoam Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/02—Lost patterns
- B22C7/023—Patterns made from expanded plastic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
- B22C9/046—Use of patterns which are eliminated by the liquid metal in the mould
Definitions
- reference numeral 42 denotes an inlet for molten metal 48
- reference numeral 42B denotes a vent port, which are integrally formed with the foam model 42.
- the vanishing prototype 53 is molded by the vanishing prototype 53 three-light-curing molding method.
- the disappearing prototype 53 is molded in a short time and with good shape accuracy without using a mold.
- the problems of the loss-tox method and the full-mold method are effectively solved.
- FIG. 5 is a diagram showing a conventional manufacturing method.
- the three-dimensional shape of the animal 15, that is, the shape of the outer surface 15 a is designed using a three-dimensional CAD system.
- three-dimensional shape information of the animal 15 is defined by the three-dimensional CAD system.
- the production of the prototype 1 of the shell resin shown in FIG. 1 is performed. For this, a light curing molding method is used.
- the photo-curing molding method irradiates the surface of a liquid photo-curable liquid 62 with a powerful ultraviolet ray (laser power ⁇ preferable) 63 to irradiate the irradiated area.
- a powerful ultraviolet ray (laser power ⁇ preferable) 63 By curing the resin 62 and laminating it in layers, a three-dimensional resin cured image is created.
- the shape obtained is determined by the trajectory of the laser beam 63. That is, as schematically shown in FIG. 6, a spot of the laser beam 63 is applied to the surface of the photocurable liquid 62 filled in the tank, and the laser beam 63 is two-dimensionally irradiated by the scanner 65. A part of the surface is solidified by moving to.
- the shape 1C corresponding to the material to be actually molded is added with the shape 1A of the molten metal injection portion and the shape 1B of the gas vent port, and the hollow shape corresponding to the added shape is added.
- Hull prototype 1 Power molding is added.
- a molten metal at a predetermined temperature is injected into the mold 12 from a previously provided molten metal injection section 1 shown in FIG. ⁇
- the outer shell resin prototype 1 and the foam particles 13 remaining in the mold 12 are burned and vaporized by the injection of the molten metal.
- the space 12 b in the mold 12 is filled with the metal melt without gaps.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Ce procédé de moulage permet de simplifier les opérations de production d'un moule de fonderie et de réduire le temps nécessaire au moulage d'une pièce de fonderie, ainsi que les coûts de production. Ce procédé se décompose en plusieurs opérations: production d'un moule original constitué de coquilles en résine grâce à un procédé de moulage par photopolymérisation, la surface extérieure de ces coquilles reproduisant la forme de la pièce de fonderie à réaliser; remplissage de ce moule original avec de la mousse; mise en place autour de la surface extérieure du moule original constitué de coquilles en résine d'un matériau de moule de fonderie dont la forme demeure inchangée à la température de fusion de la matière à couler; injection de la matière en fusion dans un moule de coulée contenant le moule de fonderie en coquilles de résine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP1993/000761 WO1994029047A1 (fr) | 1993-06-07 | 1993-06-07 | Procede de moulage a moule original constitue de coquilles en resine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP1993/000761 WO1994029047A1 (fr) | 1993-06-07 | 1993-06-07 | Procede de moulage a moule original constitue de coquilles en resine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1994029047A1 true WO1994029047A1 (fr) | 1994-12-22 |
Family
ID=14070319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1993/000761 WO1994029047A1 (fr) | 1993-06-07 | 1993-06-07 | Procede de moulage a moule original constitue de coquilles en resine |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO1994029047A1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5855718A (en) * | 1996-10-07 | 1999-01-05 | 3D Systems, Inc. | Method of and apparatus for making partially solidified three-dimensional objects on a layer-by-layer basis from a solidifiable medium |
| US8108982B2 (en) | 2005-01-18 | 2012-02-07 | Floodcooling Technologies, L.L.C. | Compound mold tooling for controlled heat transfer |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05131245A (ja) * | 1991-11-08 | 1993-05-28 | Takeo Nakagawa | 外皮樹脂原型を用いる鋳造方法 |
-
1993
- 1993-06-07 WO PCT/JP1993/000761 patent/WO1994029047A1/fr active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05131245A (ja) * | 1991-11-08 | 1993-05-28 | Takeo Nakagawa | 外皮樹脂原型を用いる鋳造方法 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5855718A (en) * | 1996-10-07 | 1999-01-05 | 3D Systems, Inc. | Method of and apparatus for making partially solidified three-dimensional objects on a layer-by-layer basis from a solidifiable medium |
| US6261506B1 (en) | 1996-10-07 | 2001-07-17 | 3D Systems, Inc. | Method of making a three-dimensional object |
| US8108982B2 (en) | 2005-01-18 | 2012-02-07 | Floodcooling Technologies, L.L.C. | Compound mold tooling for controlled heat transfer |
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