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:
Sep. 14, 1993
Filed:
Aug. 17, 1992
Applicant:
Inventors:
Hideki Kamogawa, Toyota, JP;
Toshikatsu Hirose, Yokohama, JP;
Assignees:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Kanto Jidosha Kogyo Kabushiki Kaisha, Yokosuka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
21912164 ; 2191218 ;
Abstract
Metal sheets having different thicknesses are abutted and laser-welded. During laser welding, the laser beam weaves from side to side with respect to a weld line. As a result, the width of the weld bead is increased and the gradient of the weld bead surface is decreased whereby no sharp edge remains at the weld line. The resulting one-piece sheet can be used as a press material without any pre-pressing processing, such as grinding.