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:
Aug. 15, 2023
Filed:
May. 15, 2019
Ihi Inspection & Instrumentation Co., Ltd., Tokyo, JP;
Tadano Ltd., Kagawa, JP;
Katsura Owaki, Kanagawa, JP;
Isao Kawaguchi, Kanagawa, JP;
Satomi Maki, Kanagawa, JP;
Hiroki Matsuo, Kagawa, JP;
Takahiro Akizuki, Kagawa, JP;
Naoya Sawada, Kagawa, JP;
IHI INSPECTION & INSTRUMENTATION CO., LTD., Tokyo, JP;
TADANO LTD., Kagawa, JP;
Abstract
A hybrid welding device capable of reducing an influence of by-products such as spatters, plasma, plumes, and fume, and reducing contamination of a laser optical system and welding defects is provided. A laser head includes a laser nozzle that forms an optical path of a laser beam, a first rectifying plate that is arranged on a tip side of the laser nozzle so as not to interfere with the laser beam, a first air knife that injects compressed air along the first rectifying plate, a second rectifying plate that is arranged between the first rectifying plate and the welded portion so as not to interfere with the laser beam, and a second air knife that injects compressed air along the second rectifying plate. The first rectifying plate and the second rectifying plate have a shape elongated in a direction perpendicular to an optical axis of the laser beam and a welding direction. The second rectifying plate has a torch opening through which a tip of a welding torch can be inserted.