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:
Jun. 09, 1987
Filed:
Dec. 11, 1985
Jack H Devletian, Portland, OR (US);
Oregon Graduate Center, Beaverton, OR (US);
Abstract
A method for joining individual pieces of material together includes the steps of heating the pieces to be welded together, at least one of which consists of a metal matrix with a relatively low melting point and a reinforcement material distributed therein, the reinforcement having a relatively high melting point. The other piece may be a similar metal matrix composite, or may be a metal or alloy which is to be joined to the first piece. The pieces are heated to a temperature which is above the melting points of the metals and below the melting point of the reinforcement. The pieces so heated are brought into contact with one another and then cooled to a temperature below the melting points of the metals. One technique for practicing the method of the invention is that of capacitor discharge welding.