EP3277451A1 - Procede de moulage en carapace sable pour la realisation d'une piece dans le domaine de l'automobile et de l'aeronautique - Google Patents
Procede de moulage en carapace sable pour la realisation d'une piece dans le domaine de l'automobile et de l'aeronautiqueInfo
- Publication number
- EP3277451A1 EP3277451A1 EP16712064.1A EP16712064A EP3277451A1 EP 3277451 A1 EP3277451 A1 EP 3277451A1 EP 16712064 A EP16712064 A EP 16712064A EP 3277451 A1 EP3277451 A1 EP 3277451A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shell
- sand
- production
- automotive
- aeronautics
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000010112 shell-mould casting Methods 0.000 title claims abstract description 10
- 239000004576 sand Substances 0.000 title claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 6
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 9
- 239000000956 alloy Substances 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 238000000465 moulding Methods 0.000 claims description 8
- 238000005242 forging Methods 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 238000010791 quenching Methods 0.000 description 4
- 230000000171 quenching effect Effects 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
Definitions
- the invention relates to the technical sector of the foundry, including aluminum alloy, magnesium, copper or other similar materials.
- the invention relates to a sand shell molding process, for the production of a part in the field of automotive and aeronautics.
- thermosetting resin which, in contact with a model plate heated to a temperature of about 200 ° C, hardens on a layer of a few millimeters, constituting the shell.
- Each carapace corresponds to a half-mold, which is then polymerized, then glued.
- Croning processes hot box, cold box, warm box, inorganic, .
- This molding process has several advantages, among which can be mentioned the possibility of making very complex geometries, as well as the ability to integrate different functions on the part in question, for example an exhaust manifold on a motor vehicle cylinder head automobiles. Other advantages are to be noted, for example, in terms of the reduction in the weight of the parts obtained. Such a process requires, in addition, low investment, and reduces the machining operations.
- a metal or an alloy is cast into the shell to make a part
- sand shell is manufactured, in a known manner, according to a process adapted to the nature of the part to be obtained (hot box, cold box, warm box, 3D printing, .).
- the thicknesses of the shell are also adapted, depending on the characteristics of the part to be obtained, to achieve the best possible compromise between metalostatic pressure resistance and interface thermal resistance.
- the sand shell, containing said metal or said alloy still in the liquid state, or in the solidification phase is then cooled, for example, by quenching.
- this quenching can be with water, with oil, with air, or any other means allowing such a cooling. Rapid and forced cooling means that the shell is hardened while the alloy is still liquid.
- the temperature of the quenching is less than 100 ° C.
- the preform is subjected to a combined operation of pressing and forging, as is apparent from the process known under the trade name COBAP ESS.
- COBAPRESS process emerges, for example, from the teaching of patent EP 0 1 19 365.
- This sand-shell molding process makes it possible to obtain mechanical characteristics that are much greater than those obtained in the case of a sand-shell molding process, according to the prior state of the art. as is apparent from the test results below, made with the same type of metal or alloy.
- o A% 6-8% formulas according to which SDAS corresponds to interdendritic space, Rp to elastic limit, Rm, to mechanical strength and A% to elongation.
- the process makes it possible to combine the advantages of a sand-shell casting that makes it possible to obtain complex geometry pieces, with a reduction in weight, a reduction in machining operations, while requiring low investment, with high characteristics, as shown by the comparative tests above. It is also noted that the COBAPRESS process application allows a sharp decrease in porosity and skin phenomenon.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Powder Metallurgy (AREA)
- Body Structure For Vehicles (AREA)
- Forging (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1552788A FR3034332A1 (fr) | 2015-04-01 | 2015-04-01 | Procede de moulage en carapace sable pour la realisation d'une piece dans le domaine de l'automobile et de l'aeronautique |
PCT/FR2016/050579 WO2016156692A1 (fr) | 2015-04-01 | 2016-03-16 | Procede de moulage en carapace sable pour la realisation d'une piece dans le domaine de l'automobile et de l'aeronautique |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3277451A1 true EP3277451A1 (fr) | 2018-02-07 |
Family
ID=53274664
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16712064.1A Withdrawn EP3277451A1 (fr) | 2015-04-01 | 2016-03-16 | Procede de moulage en carapace sable pour la realisation d'une piece dans le domaine de l'automobile et de l'aeronautique |
Country Status (10)
Country | Link |
---|---|
US (1) | US20180369906A1 (fr) |
EP (1) | EP3277451A1 (fr) |
JP (1) | JP2018516761A (fr) |
KR (1) | KR20170132771A (fr) |
CN (1) | CN107427906A (fr) |
CA (1) | CA2981374A1 (fr) |
FR (1) | FR3034332A1 (fr) |
MA (1) | MA41836A (fr) |
MX (1) | MX2017012495A (fr) |
WO (1) | WO2016156692A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11958105B2 (en) | 2022-03-09 | 2024-04-16 | Honda Motor Co., Ltd. | Rapid solidification of molded products |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3763926A (en) * | 1971-09-15 | 1973-10-09 | United Aircraft Corp | Apparatus for casting of directionally solidified articles |
WO1996005006A1 (fr) * | 1994-08-08 | 1996-02-22 | Siemens Aktiengesellschaft | Procede et dispositif permettant une solidification dirigee d'une matiere fondue |
EP1076118A1 (fr) * | 1999-08-13 | 2001-02-14 | ABB (Schweiz) AG | Procédé et appareillage pour mouler une pièce à solidification directionnelle |
EP2436461A2 (fr) * | 2010-09-30 | 2012-04-04 | General Electric Company | Procédé de solidification unidirectionnelle et appareil correspondant |
US20130160967A1 (en) * | 2011-12-23 | 2013-06-27 | General Electric Company | Casting methods for making articles having a fine equiaxed grain structure |
EP2727669A2 (fr) * | 2012-11-06 | 2014-05-07 | Howmet Corporation | Procédé de coulage, appareil et produit |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4222429A (en) * | 1979-06-05 | 1980-09-16 | Foundry Management, Inc. | Foundry process including heat treating of produced castings in formation sand |
CH650430A5 (de) * | 1980-08-29 | 1985-07-31 | Fischer Georg Gmbh | Verfahren zum giessen von metallen mittels phenolharzgebundenen sandformen. |
JPS57202943A (en) * | 1981-06-05 | 1982-12-13 | Kubota Ltd | Manufacture of casting mold |
DE3373281D1 (en) * | 1983-03-14 | 1987-10-08 | Serio Thomas Di | Method of producing pieces of aluminium or aluminium alloy |
JPH02280956A (ja) * | 1989-04-21 | 1990-11-16 | Kobe Steel Ltd | ロストワックス鋳造方法 |
JP3008759B2 (ja) * | 1992-12-18 | 2000-02-14 | 株式会社リケンキャステック | チル面に給油孔をもつ中空カムシャフトとその製造法 |
US6622774B2 (en) * | 2001-12-06 | 2003-09-23 | Hamilton Sundstrand Corporation | Rapid solidification investment casting |
FR2995235B1 (fr) * | 2012-09-11 | 2016-12-09 | Snecma | Modele de fonderie |
FR3000910B1 (fr) * | 2013-01-17 | 2015-05-01 | Snecma | Procede de fabrication d'une piece par fonderie a la cire perdue et refroidissement dirige |
CN103286279B (zh) * | 2013-07-03 | 2015-02-11 | 韶关市富迪精密铸造有限公司 | 半挂车制动鼓的新型铸造工艺 |
-
2015
- 2015-04-01 FR FR1552788A patent/FR3034332A1/fr active Pending
-
2016
- 2016-03-15 MA MA041836A patent/MA41836A/fr unknown
- 2016-03-16 CN CN201680019693.6A patent/CN107427906A/zh active Pending
- 2016-03-16 US US15/563,023 patent/US20180369906A1/en not_active Abandoned
- 2016-03-16 KR KR1020177027455A patent/KR20170132771A/ko unknown
- 2016-03-16 EP EP16712064.1A patent/EP3277451A1/fr not_active Withdrawn
- 2016-03-16 WO PCT/FR2016/050579 patent/WO2016156692A1/fr active Application Filing
- 2016-03-16 MX MX2017012495A patent/MX2017012495A/es unknown
- 2016-03-16 JP JP2018502335A patent/JP2018516761A/ja active Pending
- 2016-03-16 CA CA2981374A patent/CA2981374A1/fr not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3763926A (en) * | 1971-09-15 | 1973-10-09 | United Aircraft Corp | Apparatus for casting of directionally solidified articles |
WO1996005006A1 (fr) * | 1994-08-08 | 1996-02-22 | Siemens Aktiengesellschaft | Procede et dispositif permettant une solidification dirigee d'une matiere fondue |
EP1076118A1 (fr) * | 1999-08-13 | 2001-02-14 | ABB (Schweiz) AG | Procédé et appareillage pour mouler une pièce à solidification directionnelle |
EP2436461A2 (fr) * | 2010-09-30 | 2012-04-04 | General Electric Company | Procédé de solidification unidirectionnelle et appareil correspondant |
US20130160967A1 (en) * | 2011-12-23 | 2013-06-27 | General Electric Company | Casting methods for making articles having a fine equiaxed grain structure |
EP2727669A2 (fr) * | 2012-11-06 | 2014-05-07 | Howmet Corporation | Procédé de coulage, appareil et produit |
Non-Patent Citations (1)
Title |
---|
See also references of WO2016156692A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2016156692A1 (fr) | 2016-10-06 |
MA41836A (fr) | 2018-02-06 |
MX2017012495A (es) | 2018-07-06 |
KR20170132771A (ko) | 2017-12-04 |
US20180369906A1 (en) | 2018-12-27 |
CN107427906A (zh) | 2017-12-01 |
FR3034332A1 (fr) | 2016-10-07 |
JP2018516761A (ja) | 2018-06-28 |
CA2981374A1 (fr) | 2016-10-06 |
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Legal Events
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