Title:
LASER-WELDED LAP JOINT, METHOD FOR PRODUCING LASER-WELDED LAP JOINT, AND STRUCTURAL COMPONENT FOR VEHICLE
Document Type and Number:
WIPO Patent Application WO/2019/225527
Kind Code:
A1
Abstract:
The purpose of the present invention is provide: a laser-welded lap joint; a method for producing a laser-welded lap-joint; and a structural component for motor vehicle having said laser-welded lap joint. The present invention is a laser-welded lap joint, having a weld joined by laser lap-welding an overlapped part obtained by overlapping a plurality of steel plates, wherein the weld comprises a main weld which passes through the steel plates at the overlapped part, and a terminal weld having a crater formed at one end of the main weld, wherein the weld satisfies formulae (1) to (4). Formula 1: L≥15.0, Formula 2: 10.0≥L2≥21c, Formula 3: t1≥2dc, Formula 4: wc
Inventors:
HARA ASATO (JP)
KITANI YASUSHI (JP)
KITANI YASUSHI (JP)
Application Number:
PCT/JP2019/019837
Publication Date:
November 28, 2019
Filing Date:
May 20, 2019
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
B23K26/244; B23K26/21; C22C38/00; C22C38/04; C22C38/38
Domestic Patent References:
| WO2018003341A1 | 2018-01-04 |
Foreign References:
| JP2013215755A | 2013-10-24 | |||
| JP2012170989A | 2012-09-10 | |||
| JP2007229740A | 2007-09-13 | |||
| JP2008296236A | 2008-12-11 | |||
| JP2012240083A | 2012-12-10 | |||
| JP2012240086A | 2012-12-10 | |||
| JP2017113781A | 2017-06-29 |
Other References:
See also references of EP 3797922A4
Attorney, Agent or Firm:
KUMASAKA Akira et al. (JP)
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