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:
Jul. 16, 2019
Filed:
Aug. 10, 2017
Origin Electric Company, Limited, Saitama-shi, Saitama, JP;
ORIGIN ELECTRIC COMPANY, LIMITED, Saitama-Shi, Saitama, JP;
Abstract
A method for manufacturing a joined member and a joined member manufacturing apparatus which can manufacture a joined member with a joint portion having an appropriate hardness. A method for manufacturing a joined member C by joining a first member D formed of a metal material having a possibility of undergoing quenching and a second member E formed of a metal material, the method includes a contact-placing step Sof placing the first and second members D and E with joint target portions of the first and second members D and E respectively being in contact with each other; a joining step Sof joining the first and second members D and E by passing a pulsed welding electric current Afor joining through the joint target portions J of the first and second members D and E; a first tempering step Sof tempering a joint portion F, where the first and second members D and E are joined, by passing a first tempering electric current Athrough the joint portion F; and a second tempering step Sof tempering the joint portion F by passing a second tempering electric current Asmaller than the first tempering electric current Athrough the joint portion F.