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. 26, 2019
Filed:
Jul. 01, 2015
Applicant:
GM Global Technology Operations Llc, Detroit, MI (US);
Inventors:
James G. Schroth, Troy, MI (US);
Thomas A. Perry, Bruce Township, MI (US);
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K 11/11 (2006.01); C22C 9/00 (2006.01); B23K 35/30 (2006.01); B23K 11/16 (2006.01); B23K 11/18 (2006.01); B23K 11/34 (2006.01); B23K 103/04 (2006.01); B23K 103/10 (2006.01);
U.S. Cl.
CPC ...
C22C 9/00 (2013.01); B23K 11/115 (2013.01); B23K 11/16 (2013.01); B23K 11/185 (2013.01); B23K 11/34 (2013.01); B23K 35/302 (2013.01); B23K 2103/04 (2018.08); B23K 2103/10 (2018.08);
Abstract
A method of joining a first metal workpiece substrate and a second metal workpiece substrate by way of reaction metallurgical joining involves passing a pulsating DC electrical current through the metal workpiece substrates and a reaction material disposed between confronting faying surfaces of the workpiece substrates. The electrical current comprises a plurality of current pulses that generally increase in applied current level.