The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 16, 1993
Filed:
Jun. 20, 1991
Applicant:
Inventor:
Rebecca K Wyss, Pittsburgh, PA (US);
Assignee:
Aluminum Company of America, Pittsburgh, PA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22F / ;
U.S. Cl.
CPC ...
148695 ; 148696 ; 148697 ; 148698 ; 148699 ; 148416 ; 148417 ; 148437 ; 148438 ; 148439 ;
Abstract
A method of improving strength in aluminum alloys. The method involves solution heat treating an aluminum alloy product, quenching the alloy product, warm working the alloy product without a pre-aging step, and aging the alloy product at 250.degree.-400.degree. F. (121.degree.-204.degree. C.). The method may be used on forgings, to impart T8-type hardness to alloys that previously could only obtain such hardness levels in non-forging applications, such as by using stretch/cold working techniques.