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Abstract

The part made of low-silicon aluminum alloy contains magnesium, copper, manganese, titanium, and strontium. Said part is obtained by a method that consists in:

casting said alloy in a mold so as to obtain the part;after the casting, demolding the part constituting a preform that is still hot;cooling said preform and then subjecting it to an operation suitable for reheating it to a temperature lying in the range 470° C. to 550° C.;positioning said part between two shells of a die that defines a cavity of dimensions substantially equal to but less than the dimensions of the cavity of the mold; andstrongly pressing the two shells together to exert on the part disposed between said shells a combined pressing and surface kneading effect.

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First Claim