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. 16, 2017
Filed:
Oct. 12, 2011
Seiji Furusako, Tokyo, JP;
Yasunobu Miyazaki, Tokyo, JP;
Yasuaki Naito, Tokyo, JP;
NIPPON STEEL & SUMITOMO METAL CORPORATION, Tokyo, JP;
Abstract
At a plurality of welding positions in an overlap portion of a plurality of members including a high-tensile steel sheet whose carbon content is 0.07 weight % or more, first beads (to) in a closed loop shape or a closed loop-like shape and second beads (to) in a closed loop shape or a closed loop-like shape on inner sides of the first bead (to) are formed by remote laser welding for joining. At this time, there are a procedure for successively forming the plural first beads (to) and a procedure for successively forming the plural second beads (to) for the plural formed first beads (to), and in both of the cases, the beads are each formed at a position except the closest welding position among the plural welding positions. Consequently, it is possible to enhance strength of a weld zone and to suppress welding deformation.