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:
May. 21, 1991
Filed:
Jul. 20, 1990
James W Martin, Sinking Spring, PA (US);
Robert S Brown, Leesport, PA (US);
E Lance Buck, Reinholds, PA (US);
Gregory J Del Corso, Sinking Spring, PA (US);
Carpenter Technology Corporation, Reading, PA (US);
Abstract
A process for making a clad article of a densified metal powder core and a compatible metal cladding metallurgically bonded thereto results in a significantly reduced concentration of metal oxides in the core so as to prevent embrittlement of the core at and adjacent the core/cladding interface that results in rupture between the core and the cladding along the interface during working or forming. In carrying out the process, the temperature of the undensified metal powder and/or the temperature of the compatible metal container into which the metal powder is filled are closely controlled so as to avoid adsorption of moisture during the filling step.