EP0997550B1 - Verfahren zur Herstellung eines Bauteiles aus einer Aluminiumlegierung durch Druckgiessen - Google Patents
Verfahren zur Herstellung eines Bauteiles aus einer Aluminiumlegierung durch Druckgiessen Download PDFInfo
- Publication number
- EP0997550B1 EP0997550B1 EP99810313A EP99810313A EP0997550B1 EP 0997550 B1 EP0997550 B1 EP 0997550B1 EP 99810313 A EP99810313 A EP 99810313A EP 99810313 A EP99810313 A EP 99810313A EP 0997550 B1 EP0997550 B1 EP 0997550B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- component
- alloy
- process according
- temperature
- 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
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
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
- C22C21/04—Modified aluminium-silicon alloys
-
- 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
- C22F1/043—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 silicon as the next major constituent
Definitions
- the invention relates to a method for producing a component with high Ductility requirements from an aluminum alloy by die casting. in the An application of the method as well as a Use of a component manufactured using the method.
- the die-casting process enables the cost-effective production of large quantities Manufacture of thin-walled castings, such as those used in crash-relevant components Automotive engineering can be used.
- Thin-walled parts place high demands of the castability.
- Aluminum alloys that adhere to the flow behavior or mold filling requirements, are mainly alloys with a Si eutectic.
- Suitable alloy based on aluminum-silicon is from EP-B-0687742 known.
- the alloy corresponds to the type AlSi9Mg with considerable reduced iron content and strontium refinement of the AlSi eutectic.
- the alloy becomes complete before heat treatment is carried out solution annealed and then quenched.
- the invention is therefore based on the object of an aluminum alloy specify a heat treatment with which a high elongation at break sufficient yield strength even without high-temperature annealing can be achieved with subsequent water quenching.
- the alloy essentially corresponds to the alloy known from EP-B-0687742 with an increased iron and reduced manganese content.
- This variation in the alloy composition has a positive influence on the mechanical properties, since the Al 12 (Mg, Fe) Si 2 phases are significantly finer and more evenly distributed, which ultimately results in improved ductility. Due to the higher iron content, aluminum of lower purity can be used as an alloy base, which reduces the cost of the alloy. In addition, the higher iron content makes it possible to reduce the manganese additive used to reduce the tendency of the alloy to stick in the die.
- the temperature range and duration of the solution annealing are thus chosen so that on the one hand the strong cast oversaturation of Silicon is broken down to improve the ductility and on the other hand the Yield strength through subsequent heat curing to the required Values can be set.
- the temperature range for the partial solution treatment is preferably between about 420 and 460 ° C. Accepting a minor mechanical The component can lose strength for certain applications without subsequent Hot curing can be used.
- the component can also be heat-cured after the partial solution annealing in the temperature range of the precipitation hardening of Mg 2 Si.
- This heat curing is preferably carried out in a temperature range from approximately 190 to 240 ° C., in particular approximately 190 to 220 ° C.
- the preferred field of application of the method according to the invention is in the production of large-area and thin-walled components with a high intake capacity for kinetic energy through plastic deformation, i.e. crash-relevant components such as safety components in vehicle construction and be used in particular in the automotive industry.
- crash-relevant components such as safety components in vehicle construction and be used in particular in the automotive industry.
- safety components are space frame nodes and crash elements.
- alloy B is a comparative alloy and corresponds to an alloy according to EP-B-0687742.
- alloy Composition (% by weight) Si Mn Fe mg Ti Sr A 10:45 00:45 00:24 00:28 00:05 0014 B 10.88 00:58 00:10 00:17 00:05 0013
- Alloys A and B became the same, difficult to cast Component manufactured with a vacuum die casting process.
- the component is a so-called "B-pillar" for vehicle construction, i.e. on large-area and thin-walled component with a wall thickness of 2 mm.
- the component made from alloy A according to the invention was subjected to the following heat treatment after casting: Partial solution annealing 440 ° C / 60 min in air Cooling in still air warm aging 220 ° C / 110 min in air
- the distortion was measured on a component made from alloy A according to the invention after various heat treatments.
- the warpage was determined as follows: A reference point (zero point) was defined on the cast part in the cast state (ie before the heat treatment) at a certain point. After the heat treatment, the distance to the reference point was then measured. This distance defines the distortion as a measure of the deformation that arises due to the heat treatment carried out.
- Table 2 Heat treatment / cooling Solution annealing 493 ° C / 60 min water quenching part. Solution annealing 440 ° C / 60 min cooling in still air part. Solution annealing 440 ° C / 60 min cooling with fan delay (Mm) 6.5 ⁇ 0.5 ⁇ 0.5
- alloy A according to the invention The components made from alloy A according to the invention and comparative alloy B were heat-treated as follows after casting: Partial solution annealing Cooling in still air 420 ° C / 20 min
- Table 3 clearly shows that compared to the comparative alloy B improved elongation at break values of alloy A according to the invention
- This improved ductility of the alloy A according to the invention is attributed to the positive influence of the higher iron content and consequently the finer formation and more uniform distribution of the Al 12 (Mn, Fe) Si 2 phases in the alloy A according to the invention compared to the comparative alloy B.
- the different formation and distribution of the brittle Al 12 (Mn, Fe) Si 2 phases could be confirmed metallographically using micrographs. Orientative tests have further shown that even when the iron content is increased to 0.35% by weight and the manganese content is simultaneously reduced to 0.4% by weight, no ⁇ -AIFeSi phases which are harmful to the ductility occur. Corrosion tests have also shown that pitting corrosion, which is observed at low iron contents due to the rough precipitation of the Al 12 (Mn, Fe) Si 2 phases, which act as cathodic local elements, is prevented by the increased iron content.
Description
Dehngrenze (Rp0.2) | 120 MPa |
Zugfestigkeit (Rm) | 180 MPa |
Dehnung (A5) | 15% |
9.5 bis 11.5 | Gew.-% Silizium |
0.3 bis 0.6 | Gew.-% Mangan |
0.15 bis 0.35 | Gew.-% Eisen |
0.1 bis 0.4 | Gew.-% Magnesium |
max. 0.1 | Gew.-% Titan |
90 bis 180 | ppm Strontium |
0.1 bis 0.3 | Gew.-% Chrom |
0.1 bis 0.3 | Gew.-% Nickel |
0.1 bis 0.3 | Gew.-% Kobalt |
Legierung | Zusammensetzung (Gew.-%) | |||||
Si | Mn | Fe | Mg | Ti | Sr | |
A | 10.45 | 0.45 | 0.24 | 0.28 | 0.05 | 0.014 |
B | 10.88 | 0.58 | 0.10 | 0.17 | 0.05 | 0.013 |
Partielle Lösungsglühung | 440°C/60 min | an Luft |
Abkühlung an ruhender Luft Warmauslagerung | 220°C/110 min | an Luft |
Rm | 200 MPa |
Rp0.2 | 120 MPa |
A5 | 17% |
Wärmebehandlung / Abkühlung | |||
Lösungsglühung 493°C/60 min Wasserabschreckung | part. Lösungsglühung 440°C/60 min Abkühlung an ruhender Luft | part. Lösungsglühung 440°C/60 min Abkühlung mit Ventilator | |
Verzug (mm) | 6.5 | <0.5 | <0.5 |
Partielle Lösungsglühung Abkühlung an ruhender Luft | 420°C/20 min |
Probenahmestelle | Legierung A | Legierung B | ||||
Rm (MPa) | Rp0.2 (MPa) | A5 (%) | Rm (MPa) | Rp0.2 (MPa) | A5 (%) | |
1 | 202.2 | 101.4 | 16.5 | 202.8 | 100.7 | 13.0 |
2 | 200.5 | 101.7 | 19.1 | 202.3 | 97.4 | 11.9 |
3 | 199.4 | 100.2 | 15.6 | 198.2 | 98.6 | 12.9 |
4 | 201.6 | 102.0 | 15.4 | 196.9 | 99.7 | 14.2 |
Claims (6)
- Verfahren zur Herstellung eines Bauteiles mit hohen Duktilitätsanforderungen aus einer Aluminiumlegierung durch Druckgiessen,
dadurch gekennzeichnet, dass eine Legierung mit9.5 bis 11.5 Gew.-% Silizium 0.3 bis 0.6 Gew.-% Mangan 0.15 bis 0.35 Gew.-% Eisen 0.1 bis 0.4 Gew.-% Magnesium max. 0.1 Gew.-% Titan 90 bis 180 ppm Strontium 0.1 bis 0.3 Gew.-% Chrom 0.1 bis 0.3 Gew.-% Nickel 0.1 bis 0.3 Gew.-% Kobalt - Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die partielle Lösungsglühung in einem Temperaturbereich von etwa 420 bis 460°C durchgeführt wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Bauteil nach der partiellen Lösungsglühung zur Einstellung des gewünschten Festigkeitsniveaus im Temperaturbereich der Ausscheidungshärtung von Mg2Si warmausgehärtet wird.
- Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass die Warmaushärtung in einem Temperaturbereich von etwa 190 bis 240°C, insbesondere etwa 190 bis 220°C, durchgeführt wird.
- Anwendung des Verfahrens nach einem der Ansprüche 1 bis 4 zur Herstellung grossflächiger und dünnwandiger Bauteile mit hohem Aufnahmevermögen für kinetische Energie durch plastische Verformung.
- Verwendung eines mit dem Verfahren nach einem der Ansprüche 1 bis 4 hergestellten Bauteiles als Sicherheitsbauteil im Fahrzeugbau.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SI9930168T SI0997550T1 (en) | 1998-10-05 | 1999-04-15 | Method for fabricating a component from an aluminium alloy by pressure die-casting |
EP99810313A EP0997550B1 (de) | 1998-10-05 | 1999-04-15 | Verfahren zur Herstellung eines Bauteiles aus einer Aluminiumlegierung durch Druckgiessen |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98810995 | 1998-10-05 | ||
EP98810995A EP0992601A1 (de) | 1998-10-05 | 1998-10-05 | Verfahren zur Herstellung eines Bauteiles aus einer Aluminiumlegierung durch Druckgiessen |
EP99810313A EP0997550B1 (de) | 1998-10-05 | 1999-04-15 | Verfahren zur Herstellung eines Bauteiles aus einer Aluminiumlegierung durch Druckgiessen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0997550A1 EP0997550A1 (de) | 2000-05-03 |
EP0997550B1 true EP0997550B1 (de) | 2002-10-09 |
Family
ID=8236368
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98810995A Withdrawn EP0992601A1 (de) | 1998-10-05 | 1998-10-05 | Verfahren zur Herstellung eines Bauteiles aus einer Aluminiumlegierung durch Druckgiessen |
EP99810313A Expired - Lifetime EP0997550B1 (de) | 1998-10-05 | 1999-04-15 | Verfahren zur Herstellung eines Bauteiles aus einer Aluminiumlegierung durch Druckgiessen |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98810995A Withdrawn EP0992601A1 (de) | 1998-10-05 | 1998-10-05 | Verfahren zur Herstellung eines Bauteiles aus einer Aluminiumlegierung durch Druckgiessen |
Country Status (7)
Country | Link |
---|---|
EP (2) | EP0992601A1 (de) |
AT (1) | ATE225868T1 (de) |
DE (1) | DE59903009D1 (de) |
DK (1) | DK0997550T3 (de) |
ES (1) | ES2181382T3 (de) |
PT (1) | PT997550E (de) |
SI (1) | SI0997550T1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006032699A1 (de) * | 2006-07-14 | 2008-01-17 | Bdw Technologies Gmbh & Co. Kg | Aluminiumlegierung und deren Verwendung für ein Gussbauteil insbesondere eines Kraftwagens |
DE102008024524A1 (de) | 2008-05-21 | 2009-11-26 | Bdw Technologies Gmbh | Verfahren und Anlage zur Herstellung eines Gussbauteils |
DE102018214739A1 (de) * | 2018-08-30 | 2020-03-05 | Magna BDW technologies GmbH | Hochfestes Gehäuse, sowie Verfahren zur Herstellung von hochfesten Guss-Gehäusen |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6921512B2 (en) * | 2003-06-24 | 2005-07-26 | General Motors Corporation | Aluminum alloy for engine blocks |
PL1612286T3 (pl) * | 2004-06-29 | 2011-12-30 | Rheinfelden Aluminium Gmbh | Odlewniczy stop aluminium |
JP2006183122A (ja) * | 2004-12-28 | 2006-07-13 | Denso Corp | ダイカスト用アルミニウム合金およびアルミニウム合金鋳物の製造方法 |
DE102008055926B4 (de) | 2007-11-08 | 2012-01-26 | Ksm Castings Gmbh | Vorderachsträger für Kraftfahrzeuge |
DE102008029864B4 (de) * | 2008-06-24 | 2011-02-24 | Bdw Technologies Gmbh | Gussbauteil und Verfahren zu dessen Herstellung |
DE102009019269A1 (de) * | 2009-04-28 | 2010-11-11 | Audi Ag | Aluminium-Silizium-Druckgusslegierung für dünnwändige Strukturbauteile |
DE102010061895A1 (de) * | 2010-07-21 | 2012-01-26 | Bdw Technologies Gmbh | Verfahren zum Wärmebehandeln eines Gussbauteils |
ES2507865T3 (es) * | 2010-12-28 | 2014-10-15 | Casa Maristas Azterlan | Método para obtener propiedades mecánicas mejoradas en moldeos de aluminio reciclado libres de fases beta con forma de plaqueta |
EP2735621B1 (de) * | 2012-11-21 | 2015-08-12 | Georg Fischer Druckguss GmbH & Co. KG | Aluminium-Druckgusslegierung |
GB2522716B (en) * | 2014-02-04 | 2016-09-14 | Jbm Int Ltd | Method of manufacture |
CN104962790B (zh) * | 2015-08-01 | 2016-09-14 | 万信方达科技发展(北京)有限责任公司 | 一种物联网用信息采集装置 |
WO2017135463A1 (ja) * | 2016-02-05 | 2017-08-10 | 学校法人芝浦工業大学 | 鋳造用アルミニウム合金、アルミニウム合金部材、及びアルミニウム合金部材の製造方法 |
CN112662920B (zh) * | 2020-12-02 | 2022-03-15 | 成都慧腾创智信息科技有限公司 | 一种高导热高韧性压铸铝硅合金及其制备方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5938388A (ja) * | 1982-08-26 | 1984-03-02 | Okuno Seiyaku Kogyo Kk | アルミニウム合金鋳物又はアルミニウム合金ダイカストの表面処理方法 |
JPH0791624B2 (ja) * | 1988-05-11 | 1995-10-04 | 本田技研工業株式会社 | アルミニウム合金鋳物品の製造方法 |
KR950000494A (ko) * | 1993-06-22 | 1995-01-03 | 마이어트 그루츠 | 조향핸들과 그 제조공정 |
CH689143A5 (de) * | 1994-06-16 | 1998-10-30 | Rheinfelden Aluminium Gmbh | Aluminium-Silizium Druckgusslegierung mit hoher Korrosionsbestaendigkeit, insbesondere fuer Sicherheitsbauteile. |
JPH09272957A (ja) * | 1996-04-08 | 1997-10-21 | Nippon Light Metal Co Ltd | 光沢性に優れたダイカスト鋳造アルミニウム製自動車用ホイールの製造方法 |
-
1998
- 1998-10-05 EP EP98810995A patent/EP0992601A1/de not_active Withdrawn
-
1999
- 1999-04-15 DK DK99810313T patent/DK0997550T3/da active
- 1999-04-15 EP EP99810313A patent/EP0997550B1/de not_active Expired - Lifetime
- 1999-04-15 SI SI9930168T patent/SI0997550T1/xx unknown
- 1999-04-15 AT AT99810313T patent/ATE225868T1/de active
- 1999-04-15 PT PT99810313T patent/PT997550E/pt unknown
- 1999-04-15 ES ES99810313T patent/ES2181382T3/es not_active Expired - Lifetime
- 1999-04-15 DE DE59903009T patent/DE59903009D1/de not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006032699A1 (de) * | 2006-07-14 | 2008-01-17 | Bdw Technologies Gmbh & Co. Kg | Aluminiumlegierung und deren Verwendung für ein Gussbauteil insbesondere eines Kraftwagens |
DE102006032699B4 (de) * | 2006-07-14 | 2010-09-09 | Bdw Technologies Gmbh & Co. Kg | Aluminiumlegierung und deren Verwendung für ein Gussbauteil insbesondere eines Kraftwagens |
DE102008024524A1 (de) | 2008-05-21 | 2009-11-26 | Bdw Technologies Gmbh | Verfahren und Anlage zur Herstellung eines Gussbauteils |
EP2128276A1 (de) | 2008-05-21 | 2009-12-02 | BDW technologies GmbH | Verfahren und Anlage zur Herstellung eines Gussbauteils |
DE102018214739A1 (de) * | 2018-08-30 | 2020-03-05 | Magna BDW technologies GmbH | Hochfestes Gehäuse, sowie Verfahren zur Herstellung von hochfesten Guss-Gehäusen |
Also Published As
Publication number | Publication date |
---|---|
DK0997550T3 (da) | 2003-02-10 |
SI0997550T1 (en) | 2003-04-30 |
EP0992601A1 (de) | 2000-04-12 |
ATE225868T1 (de) | 2002-10-15 |
ES2181382T3 (es) | 2003-02-16 |
PT997550E (pt) | 2003-02-28 |
EP0997550A1 (de) | 2000-05-03 |
DE59903009D1 (de) | 2002-11-14 |
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