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:
Oct. 31, 2023
Filed:
Aug. 23, 2018
Ihi Inspection & Instrumentation Co., Ltd., Tokyo, JP;
Tadano Ltd., Kagawa, JP;
Katsura Owaki, Tokyo, JP;
Isao Kawaguchi, Kanagawa, JP;
Satomi Maki, Kanagawa, JP;
Kosei Yamamoto, Kagawa, JP;
Hiroki Matsuo, Kagawa, JP;
IHI INSPECTION & INSTRUMENTATION CO., LTD., Tokyo, JP;
TADANO LTD., Kagawa, JP;
Abstract
A tack welding method and a tack welding apparatus that can improve the strength of a tack-welded joint portion and reduce the height of a reinforcement bead is provided. A tack welding method of the present embodiment is a tack welding method of tack-welding a part of a joint portion of a first joint and a second joint at a predetermined interval before main welding. In the tack welding method, a filler metal is supplied to the joint portion, laser light is deflected and irradiated to the joint portion, and the filler metal is cut with the laser light to be welded to the joint portion.