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.

Date of Patent:
Sep. 02, 1986

Filed:

Nov. 01, 1985
Applicant:
Inventor:

Ashok K Khare, Warren, PA (US);

Assignee:

National Forge Co., Irvine, PA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21J / ;
U.S. Cl.
CPC ...
72364 ; 148 / ;
Abstract

A process for warm-working a forged austenitic stainless steel workpiece to improve its mechanical and physical properties is disclosed. The workpiece is subjected to a force great enough to cause deformation while the surface temperature of the workpiece is elevated in the range of above about 200.degree. F. (95.degree. C.) to below the lower critical temperature. The purpose of using elevated temperatures is to reduce the force required to deform the workpiece. Stabilized austenitic stainless steel can be warm-worked and still maintain its corrosion-resistant properties. The advantages of warm-working over cold-working to achieve properties are reduction of noise and improved metallurgical control.


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