WO2003052151A1 - Pièce coulé sous pression en alliage d'aluminium à haute ductilité et résilience - Google Patents
Pièce coulé sous pression en alliage d'aluminium à haute ductilité et résilience Download PDFInfo
- Publication number
- WO2003052151A1 WO2003052151A1 PCT/FR2002/004364 FR0204364W WO03052151A1 WO 2003052151 A1 WO2003052151 A1 WO 2003052151A1 FR 0204364 W FR0204364 W FR 0204364W WO 03052151 A1 WO03052151 A1 WO 03052151A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- content
- alloy
- part according
- pressure
- alloys
- Prior art date
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/047—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent
Definitions
- the invention relates to the field of Al-Mg-Si alloys intended for the manufacture of parts molded by die casting under pressure of relatively thin thickness, and in particular structural or safety parts for the automobile.
- the high copper content if it has a favorable influence on the mechanical strength, makes the alloy susceptible to corrosion.
- good resistance to corrosion, in particular to stress corrosion, is necessary to avoid deterioration of the part in a corrosive environment such as snow-removing salt.
- Patent EP 0792380 filed in 1994 by Aluminum Rheinfelden describes the use for the molding in the semi-solid state of an alloy of composition (% by weight): Mg: 3.0 - 6.0 Si: 1, 4 - 3.5 Mn: 0.5 - 2.0 Fe ⁇ 0.15 Ti ⁇ 0.2
- the divisional application EP 0853133, resulting from the application of the preceding patent, relates to an alloy for pressure casting of composition:
- AlMgMn alloys have been used for the manufacture of diecast car steering wheels.
- DE 3827794 Toyoda Gosei relates to the use, for a flywheel of a particular shape, on the one hand of an alloy of composition: Mg: 1, 5 - 2.5 Si: 0.2 - 0.4 Fe : 0.4 - 1.0 Mn: 0.4 - 0.6 and on the other hand an alloy of composition:
- Patent EP 0412605 (Kolbenschmidt) describes, for the same application, the use of an alloy of composition: Mg: 2.5 - 3.5 Si: 0.10 - 0.30
- Patent application EP 0911420 (Aluminum Rheinfelden) describes a casting alloy with a composition: Mg: 2.0 - 3.5 Si: 0.15 - 0.35 Mn: 0.2 - 1.2
- Patent application EP 1138794 (Corus Aluminum) describes an alloy for pressure casting of composition: Mg: 2.7 - 6.0 Si ⁇ 1.4 Mn: 0.4 - 1.4
- the invention aims to provide structural parts, ground connections and safety for the automobile die-cast, having both good mechanical strength, high ductility and high energy absorption capacity, good corrosion resistance and sufficient moldability, while allowing mass production in acceptable economic conditions.
- the subject of the invention is a part, in particular a security, structural or ground connection part of a motor vehicle, die-casting in aluminum alloy of composition (% by weight):
- Mg 1.0 -4.5 Si: 0.2 - 1.3 Cu ⁇ 0.3 Zn ⁇ 0.1 l Fe ⁇ 0.3 Ti ⁇ 0.3 and at least one element intended to reduce sticking to the mold : Mn (0.3 - 1), Cr (0.1 -
- the alloy optionally contains Be at a content of less than 50 ppm.
- the subject of the invention is also a pressure casting part of the indicated composition, having in the T5 state (annealing at a temperature between 150 and
- the invention is based on the observation by the Applicant that by lowering the magnesium and silicon content compared with the alloys of the prior art intended for the manufacture of safety die-cast parts, an advantageous compromise of properties can be obtained. of use, in particular between the elastic limit in the F state (raw foundry) and ductility, while retaining an acceptable moldability.
- the magnesium content is at least 1% for the alloy to be castable, and must not exceed 4.5% if we want to have a high ductility even in the T5 state, that is to say at the annealed condition at a temperature between 100 and 200 ° C, corresponding to the firing temperature of the paints of a motor vehicle.
- the preferred content is between 2 and 4%.
- the silicon content is at least 0.2% to obtain sufficient breaking strength and yield strength, while retaining high ductility. She is preferably between 0.4 and 1%.
- Magnesium and silicon combine to form Mg Si, which is in the form of a very fine eutectic at the rates of solidification of the die casting. The presence, in a non-negligible quantity, of an eutectic fraction contributes to improving the processing properties by reducing the formation of hot cracks.
- a certain amount of magnesium due to the rapid cooling rate in the mold, remains in the solid aluminum solution, which is thus supersaturated.
- the Applicant has found that, for a given silicon content within the limits according to the invention, the elongation at break increases rapidly when the magnesium content decreases. Conversely, for a given magnesium content, a decrease in the silicon content makes it possible to increase the elongation at break, while maintaining the elastic limit above 100 MPa.
- Copper should be kept below 0.3%, and preferably below
- Iron, manganese, chromium, cobalt, molybdenum and nickel form, individually or in combination with aluminum, intermetallic compounds which are embrittling in the case of sand casting or shell casting by gravity .
- these compounds are of reduced size and of morphology such that the mechanical strength is not affected.
- the presence of these elements makes it possible to limit the bonding of the parts in the mold, by reducing the chemical potential of the alloy compared to the steel of the mold. As the iron content has an unfavorable influence on the elongation and must be limited to
- Die-cast parts are preferably used in the foundry raw state, to avoid deformation during quenching and subsequent costly straightening. They are not very sensitive to annealing resulting from the curing of paints practiced in the automotive industry. This treatment typically has a duration of between 15 min and 1 h, at a temperature of between 150 and 200 ° C.
- the parts according to the invention have, in state F or in state T5, an elastic limit always greater than 100 MPa, or even 120 MPa, and an elongation greater than 15%, which promotes the capacity d 'absorption of impact energy, and makes it possible to apply assembly techniques requiring high ductility, such as crimping or riveting.
- Sample plates in 9 different alloys A to I were produced by pressure casting, with vacuum assistance (residual pressure in the mold of 80 hPa), the composition of which is given in Table 1.
- the plates were 120 ⁇ 220 mm and 2.5 mm thick.
- the casting was done on a 3200 kN press with a closing force, with a piston injection speed of 0.7 m / s.
- the metal temperature in the oven was 780 ° C. Table 1
- the T5 treatment leads to a slight increase in hardness for the alloys whose Mg / Si ratio is low, and a maintenance of the hardness for those whose Mg / Si ratio is higher.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Body Structure For Vehicles (AREA)
- Conductive Materials (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002364655A AU2002364655A1 (en) | 2001-12-17 | 2002-12-16 | Pressure-cast component made of highly ductile and resilient aluminium ally |
DE02804926T DE02804926T1 (de) | 2001-12-17 | 2002-12-17 | Druckgussbauteil aus hochduktiler und hochelastischer aluminiumlegierung |
EP02804926A EP1456429A1 (fr) | 2001-12-17 | 2002-12-17 | PI CE COULÉ SOUS PRESSION EN ALLIAGE D ALUMINI UM HAUTE DUCTILITÉ ET RÉSILIENCE |
JP2003553018A JP2005513260A (ja) | 2001-12-17 | 2002-12-17 | 高い延性と耐衝撃性とを有するアルミニウム合金からなる圧力鋳造部品 |
CA002470221A CA2470221A1 (fr) | 2001-12-17 | 2002-12-17 | Piece coule sous pression en alliage d'aluminium a haute ductilite et resilience |
US10/497,168 US20060169371A1 (en) | 2001-12-17 | 2002-12-17 | Pressure-cast component made of highly ductile and resilient aluminium alloy |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0116300 | 2001-12-17 | ||
FR0116300A FR2833616B1 (fr) | 2001-12-17 | 2001-12-17 | Piece coulee sous pression en alliage d'aluminium a haute ductilite et resilience |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2003052151A1 true WO2003052151A1 (fr) | 2003-06-26 |
WO2003052151A8 WO2003052151A8 (fr) | 2006-02-23 |
Family
ID=8870569
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2002/004364 WO2003052151A1 (fr) | 2001-12-17 | 2002-12-16 | Pièce coulé sous pression en alliage d'aluminium à haute ductilité et résilience |
Country Status (8)
Country | Link |
---|---|
US (1) | US20060169371A1 (fr) |
EP (1) | EP1456429A1 (fr) |
JP (1) | JP2005513260A (fr) |
AU (1) | AU2002364655A1 (fr) |
CA (1) | CA2470221A1 (fr) |
DE (1) | DE02804926T1 (fr) |
FR (1) | FR2833616B1 (fr) |
WO (1) | WO2003052151A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7108042B2 (en) * | 2004-06-29 | 2006-09-19 | Aluminum Rheinfelden Gmbh | Aluminum diecasting alloy |
EP1972697A1 (fr) * | 2007-03-23 | 2008-09-24 | Bridgestone Corporation | Alliage d'aluminium dans moule pour pneu et moule de pneu |
CN103014385A (zh) * | 2012-12-03 | 2013-04-03 | 滁州迪蒙德模具制造有限公司 | 高耐磨铝合金发泡模铸件的加工工艺 |
CN105734363A (zh) * | 2016-04-27 | 2016-07-06 | 贵州航天风华精密设备有限公司 | 一种铝镁合金构件的成型方法 |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050173032A1 (en) * | 2004-02-11 | 2005-08-11 | Hubert Koch | Casting of an aluminium alloy |
US20110097598A1 (en) * | 2009-10-28 | 2011-04-28 | Mcnutt Matthew M | Laser-welded aluminum alloy parts and method for manufacturing the same |
KR20160065176A (ko) | 2013-09-30 | 2016-06-08 | 애플 인크. | 높은 강도와 심미감을 갖는 알루미늄 합금 |
WO2015052776A1 (fr) * | 2013-10-08 | 2015-04-16 | 国立大学法人 富山大学 | Alliage d'aluminium pour fabrication par coulée et coulée l'utilisant |
CN103556015A (zh) * | 2013-11-20 | 2014-02-05 | 江苏江旭铸造集团有限公司 | 铝镁合金 |
JP6090793B2 (ja) * | 2013-12-03 | 2017-03-08 | 本田技研工業株式会社 | アルミニウム部材 |
KR101620204B1 (ko) * | 2014-10-15 | 2016-05-13 | 현대자동차주식회사 | 다이캐스팅 부품용 합금 및 그 제조방법 |
EP3235916B1 (fr) | 2016-04-19 | 2018-08-15 | Rheinfelden Alloys GmbH & Co. KG | Alliage de moulage |
ES2684614T3 (es) * | 2016-04-19 | 2018-10-03 | Rheinfelden Alloys Gmbh & Co. Kg | Aleación para el moldeo a presión |
US10208371B2 (en) | 2016-07-13 | 2019-02-19 | Apple Inc. | Aluminum alloys with high strength and cosmetic appeal |
CN106636803B (zh) * | 2016-12-13 | 2018-06-29 | 佛山市三水凤铝铝业有限公司 | 一种轨道交通车辆用铝合金型材及其制造方法 |
US11345980B2 (en) | 2018-08-09 | 2022-05-31 | Apple Inc. | Recycled aluminum alloys from manufacturing scrap with cosmetic appeal |
US20200232070A1 (en) * | 2019-01-18 | 2020-07-23 | Divergent Technologies, Inc. | Aluminum alloy compositions |
JP7238545B2 (ja) * | 2019-03-29 | 2023-03-14 | 株式会社アイシン | アルミニウム合金及び鋳造部品の製造方法 |
CN115233048B (zh) * | 2022-07-06 | 2023-07-07 | 栋梁铝业有限公司 | 一种h450铝合金 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5085097A (en) * | 1987-08-31 | 1992-02-04 | Toyoda Gosei Co., Ltd. | Steering wheel core |
US5667602A (en) * | 1995-03-31 | 1997-09-16 | Aluminum Company Of America | Alloy for cast components |
EP1138794A1 (fr) * | 2000-03-31 | 2001-10-04 | Corus Aluminium Voerde GmbH | Alliage pour moulage sous pression à base d'aluminium |
US6309481B1 (en) * | 1997-10-08 | 2001-10-30 | Aluminium Rheinfelden, Gmbh | Aluminum casting alloy |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6289849A (ja) * | 1985-10-14 | 1987-04-24 | Mitsui Alum Kogyo Kk | アルミニウム合金鋳物の製造方法 |
JPS6460471A (en) * | 1987-08-31 | 1989-03-07 | Toyoda Gosei Kk | Steering wheel core bar |
EP0892077A1 (fr) * | 1997-07-18 | 1999-01-20 | Aluminum Company Of America | Alliage de fonderie à base d'aluminium et produits fabriqués par cet alliage |
JPH11293375A (ja) * | 1998-04-14 | 1999-10-26 | Hitachi Metals Ltd | 高靱性アルミニウム合金ダイカストおよびその製造方法 |
JP3734155B2 (ja) * | 2000-10-25 | 2006-01-11 | 日本軽金属株式会社 | ダイカスト用アルミニウム合金、アルミニウムダイカスト製品およびその製造方法 |
-
2001
- 2001-12-17 FR FR0116300A patent/FR2833616B1/fr not_active Expired - Fee Related
-
2002
- 2002-12-16 WO PCT/FR2002/004364 patent/WO2003052151A1/fr active Application Filing
- 2002-12-16 AU AU2002364655A patent/AU2002364655A1/en not_active Abandoned
- 2002-12-17 US US10/497,168 patent/US20060169371A1/en not_active Abandoned
- 2002-12-17 JP JP2003553018A patent/JP2005513260A/ja active Pending
- 2002-12-17 EP EP02804926A patent/EP1456429A1/fr not_active Withdrawn
- 2002-12-17 CA CA002470221A patent/CA2470221A1/fr not_active Abandoned
- 2002-12-17 DE DE02804926T patent/DE02804926T1/de active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5085097A (en) * | 1987-08-31 | 1992-02-04 | Toyoda Gosei Co., Ltd. | Steering wheel core |
US5667602A (en) * | 1995-03-31 | 1997-09-16 | Aluminum Company Of America | Alloy for cast components |
US6309481B1 (en) * | 1997-10-08 | 2001-10-30 | Aluminium Rheinfelden, Gmbh | Aluminum casting alloy |
EP1138794A1 (fr) * | 2000-03-31 | 2001-10-04 | Corus Aluminium Voerde GmbH | Alliage pour moulage sous pression à base d'aluminium |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7108042B2 (en) * | 2004-06-29 | 2006-09-19 | Aluminum Rheinfelden Gmbh | Aluminum diecasting alloy |
EP1972697A1 (fr) * | 2007-03-23 | 2008-09-24 | Bridgestone Corporation | Alliage d'aluminium dans moule pour pneu et moule de pneu |
CN103014385A (zh) * | 2012-12-03 | 2013-04-03 | 滁州迪蒙德模具制造有限公司 | 高耐磨铝合金发泡模铸件的加工工艺 |
CN105734363A (zh) * | 2016-04-27 | 2016-07-06 | 贵州航天风华精密设备有限公司 | 一种铝镁合金构件的成型方法 |
Also Published As
Publication number | Publication date |
---|---|
CA2470221A1 (fr) | 2003-06-26 |
EP1456429A1 (fr) | 2004-09-15 |
FR2833616A1 (fr) | 2003-06-20 |
AU2002364655A1 (en) | 2003-06-30 |
US20060169371A1 (en) | 2006-08-03 |
JP2005513260A (ja) | 2005-05-12 |
DE02804926T1 (de) | 2005-03-31 |
WO2003052151A8 (fr) | 2006-02-23 |
FR2833616B1 (fr) | 2004-07-30 |
AU2002364655A8 (en) | 2003-06-30 |
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