Alloys or metallic compositions – Aluminum base
Patent
1997-03-31
1999-07-20
Ryan, Patrick
Alloys or metallic compositions
Aluminum base
148688, 148689, 148695, 148696, 148415, C22C 2100
Patent
active
059253142
ABSTRACT:
It is an object of the invention to provide high-ductility alloy which is improved both in casting characteristics and elongation without lowering strength by selecting a good combination of ingredients and a proportion thereof. It is another object of the invention to provide a casting which has an good elongation without being heat-treated. It is a further object of the invention to provide a method of manufacturing integral parts having some portions with specific construction which make it impossible for a set of molding dies to be separated after finishing casting by means of in-one-piece molding. Those objects can be accomplished bay providing an high ductility aluminum alloy which contains manganese ingredient, iron ingredient, magnesium ingredient and slice of unavoidable impurity, wherein a content of the iron usually regarded as impurity is set within specified limits, magnesium content is relatively less and manganese content is relatively more than that in a conventional aluminum alloy. More specifically the high ductility Al alloy contains 1.0-2.0% by weight manganese, 0.4-1.5 & % by weight iron, 0.91-0.5% bit weight magnesium and the balance of aluminum and impurities.
REFERENCES:
patent: 4415374 (1983-11-01), Young et al.
patent: 4711762 (1987-12-01), Vernan et al.
Nishiguchi Katsuya
Sugimoto Yukihiro
Yamamoto Yukio
Elve M. Alexandra
Mazda Motor Corporation
Ryan Patrick
Studebaker Donald R.
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