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:
Nov. 01, 2022
Filed:
Nov. 05, 2019
Origin Electric Company, Limited, Saitama, JP;
Yasuo Kadoya, Saitama, JP;
Yuki Oshino, Saitama, JP;
ORIGIN COMPANY, LIMITED, Saitama, JP;
Abstract
To provide a method and apparatus for manufacturing a joined member that inhibit occurrence of cracks in a joined member even when the joined portion is quenched when members are welded together. The method includes placing the first member D and the second member E with a joint target portion Df and a joint target portion Ef being in contact with each other, welding the joint target portions by heating, subjecting the first member D after the welding to a process for inhibiting occurrence of cracks, and tempering a portion where the first and second members have been welded to each other by electromagnetic heating. The apparatus includes a first electrodeto contact with the first member D; a second electrodeto contact with the second member E; and an induction heating coilfor performing induction heating of a portion where a joint target portions Df and Ef have been contacted and joined to each other, and the induction heating coilis placed between the two electrodesandwhen the induction heating is performed.