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:
Apr. 28, 2020
Filed:
Aug. 26, 2010
Katsura Oowaki, Yokohama, JP;
Shuichi Fujita, Yokohama, JP;
Shinichi Ebina, Yokohama, JP;
Fumio Matsuzaka, Yokohama, JP;
Katsura Oowaki, Yokohama, JP;
Shuichi Fujita, Yokohama, JP;
Shinichi Ebina, Yokohama, JP;
Fumio Matsuzaka, Yokohama, JP;
IHI INSPECTION & INSTRUMENTATION CO. LTD., Tokyo, JP;
Abstract
Welding quality of a welding section W welded by laser welding is determined by acquiring an image of the welding section W and its surrounding region by means of a high-speed cameraanalyzing, as parameters, the number of spatters P per unit length and the area of a high-luminance region in the acquired image by means of an analyzerand comparing the analyzed parameters with respective comparison tables created beforehand, to determine the welding quality of the welding section Wa. Information on the welding quality of the welding section W is displayed on a monitorNot only the laser welding quality of the welding section can be determined but also in-process shearing strength prediction as well as in-process fracture mode prediction can be performed, thus enabling quality control matching high-speed and high-precision laser welding.