EP0149376A2 - Aluminiumlegierung mit verbesserten Eigenschaften - Google Patents

Aluminiumlegierung mit verbesserten Eigenschaften Download PDF

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Publication number
EP0149376A2
EP0149376A2 EP84402410A EP84402410A EP0149376A2 EP 0149376 A2 EP0149376 A2 EP 0149376A2 EP 84402410 A EP84402410 A EP 84402410A EP 84402410 A EP84402410 A EP 84402410A EP 0149376 A2 EP0149376 A2 EP 0149376A2
Authority
EP
European Patent Office
Prior art keywords
alloy
aluminum
alloys
alloy according
aluminum alloy
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Withdrawn
Application number
EP84402410A
Other languages
English (en)
French (fr)
Other versions
EP0149376A3 (de
Inventor
Roger Huet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FONDERIE ALCOA-MG SA
Original Assignee
FONDERIE ALCOA-MG SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by FONDERIE ALCOA-MG SA filed Critical FONDERIE ALCOA-MG SA
Publication of EP0149376A2 publication Critical patent/EP0149376A2/de
Publication of EP0149376A3 publication Critical patent/EP0149376A3/de
Withdrawn legal-status Critical Current

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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
    • C22C21/02—Alloys based on aluminium with silicon as the next major constituent
    • C22C21/04—Modified aluminium-silicon alloys

Definitions

  • the present invention relates to an aluminum-based alloy having simultaneously improved mechanical properties and excellent qualities of weldability and ease of implementation. It also relates to the application of this aluminum alloy to the production of parts by molding as well as to the molded parts which are formed therefrom.
  • a number of aluminum-based alloys containing various other metals, such as Si, Mg, etc., are already known, each of these metals having a defined influence on the alloy obtained.
  • silicon in aluminum-based alloys causes an increase in the mechanical properties of these alloys and facilitates their use.
  • an alloy with the reference A-357 manufactured by the American Aluminum Company of America is particularly known, which is represented in metallurgy by the formula: Al-Si7Mg O, 6 which has good mechanical properties and in particular has only a slight tendency to crack, that is to say to form intercrystalline shrinkages after the volume contraction which takes place during the solidification of the alloy.
  • This alloy however has mechanical properties which, although good, remain limited to a threshold which it is desired to exceed.
  • the subject of the present invention is an alloy based on aluminum, silicon and magnesium containing on the one hand: And on the other hand the remainder consisting of aluminum and impurities whose content is much less than 1%.
  • the above-mentioned alloy contains 1.2 to 1.4% of copper.
  • a preferred alloy according to the invention contains: and is represented in metallurgy by the following formula: Al-Si7Cu1,3Mg0,6
  • the impurities are kept at the lowest industrial level possible, that is to say that the iron is at most present at 0.10% and the phosphorus concentration remains below 5 ppm.
  • the other impurities, Mn and Zn are kept below 0.10%.
  • the Ti content is between 0.10 and 0.30%, to achieve sufficient refining allowing good mechanical properties to be obtained after solidification and appropriate heat treatment.
  • the quality index is 506 MPa, while for an aluminum alloy with the same Si and Mg content and containing 1.0 to 1.6% copper, this quality index is greater than 560 and can reach 568 MPa.
  • the quality index is thus 10% higher when the aforementioned alloy contains from 1.0 to 1.6% of copper; this is completely unexpected and completely surprising.
  • the alloy according to the invention and more particularly the aforementioned preferred alloy have improved casting properties which make them particularly useful for the manufacture of parts by foundry techniques, and also of weldability which make advantageous the subsequent assembly of these parts, which have much better metallurgical characteristics than those already observed for the best alloys used until now in the aeronautical industry.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Continuous Casting (AREA)
  • Mold Materials And Core Materials (AREA)
  • Conductive Materials (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
EP84402410A 1983-12-22 1984-11-26 Aluminiumlegierung mit verbesserten Eigenschaften Withdrawn EP0149376A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8320553 1983-12-22
FR8320553A FR2557144A1 (fr) 1983-12-22 1983-12-22 Alliage d'aluminium a proprietes ameliorees

Publications (2)

Publication Number Publication Date
EP0149376A2 true EP0149376A2 (de) 1985-07-24
EP0149376A3 EP0149376A3 (de) 1985-08-14

Family

ID=9295437

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84402410A Withdrawn EP0149376A3 (de) 1983-12-22 1984-11-26 Aluminiumlegierung mit verbesserten Eigenschaften

Country Status (4)

Country Link
US (1) US4714588A (de)
EP (1) EP0149376A3 (de)
JP (1) JPS60152648A (de)
FR (1) FR2557144A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997035040A1 (fr) * 1996-03-20 1997-09-25 Aluminium Pechiney Alliage thixotrope aluminium-silicium-cuivre pour mise en forme a l'etat semi-solide

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5243877A (en) * 1992-03-30 1993-09-14 Ryusaku Numata Steering wheel rim
KR20010058922A (ko) * 1999-12-30 2001-07-06 이계안 디젤 엔진용 알루미늄 합금강
KR100426675B1 (ko) * 2001-08-31 2004-04-13 동양다이캐스팅 주식회사 주조용 알루미늄 합금
DE102004053746A1 (de) * 2004-11-06 2006-05-11 Bayerische Motoren Werke Ag Aluminium-Gusslegierung
CN107058819A (zh) * 2017-06-22 2017-08-18 安徽银力铸造有限公司 一种铸造铝硅镁汽车轮毂合金的变质方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB595214A (en) * 1945-05-07 1947-11-28 Ernest Irving Brimelow Improvements in aluminium alloys
US1848816A (en) * 1932-03-08 Robert s
US3314829A (en) * 1964-01-13 1967-04-18 Aluminium Lab Ltd High strength pressure die casting alloy
CS162311B1 (de) * 1973-06-18 1975-07-15
SU502968A1 (ru) * 1974-07-01 1976-02-15 Белорусский Ордена Трудового Красного Знамени Политехнический Институт Сплав на основе алюмини

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997035040A1 (fr) * 1996-03-20 1997-09-25 Aluminium Pechiney Alliage thixotrope aluminium-silicium-cuivre pour mise en forme a l'etat semi-solide
FR2746414A1 (fr) * 1996-03-20 1997-09-26 Pechiney Aluminium Alliage thixotrope aluminium-silicium-cuivre pour mise en forme a l'etat semi-solide

Also Published As

Publication number Publication date
US4714588A (en) 1987-12-22
JPS60152648A (ja) 1985-08-10
FR2557144A1 (fr) 1985-06-28
EP0149376A3 (de) 1985-08-14

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Inventor name: HUET, ROGER