Metal treatment – Stock – Aluminum base
Patent
1994-10-27
1996-12-24
Sheehan, John
Metal treatment
Stock
Aluminum base
420530, C22C 2112
Patent
active
055870295
ABSTRACT:
Free-machining aluminum alloys are disclosed containing effective amounts of tin and indium. The tin and indium additions are especially adapted for use as free-machining constituents in aluminum alloys, such as AA2000 and AA6000 series aluminum alloys. The additions can be used in place of bismuth and lead in currently available free machining alloys. In alloys containing bismuth and tin, the indium can be used to replace the bismuth. A method of producing a free-machining aluminum alloy product also is described.
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Biddison Alan M.
Reynolds Metals Company
Sheehan John
LandOfFree
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