Title:
WELDING DEVICE AND WELDING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/223485
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a welding device and a welding method with which it is possible to properly comprehend welding defects including abnormal shapes, which are linked to fold defects, and the generation of dust. This welding device 1 comprises: a welding unit 10 that joins, by means of resistance welding, a region where a first sheet member 21 and a second sheet member 22 overlap, and forms a welding region 20 along a welding direction y that crosses the sheet passing direction x of the first sheet material 21 and the second sheet material 22; a rolling reduction unit 30 that applies rolling reduction to the welding region 20; a shape acquiring unit 70 that acquires the shape of the welding region 20 before and/or after the rolling reduction has been applied by the rolling reduction unit 30; and a moving body 40 that is configured to be able to reciprocate in the welding direction y and supports the welding unit 10 and the rolling reduction unit 30 while arranging the welding unit 10 and the rolling reduction unit 30 side by side in the welding direction y.
Inventors:
MITSUZUMI TATSUKI (JP)
SAITO TAKEHIKO (JP)
MITSUOKA RYOSUKE (JP)
SAITO TAKEHIKO (JP)
MITSUOKA RYOSUKE (JP)
Application Number:
PCT/JP2022/020778
Publication Date:
November 23, 2023
Filing Date:
May 19, 2022
Export Citation:
Assignee:
PRIMETALS TECH JAPAN LTD (JP)
International Classes:
B23K11/06; B23K11/25
Foreign References:
| JPH05318132A | 1993-12-03 | |||
| JP2018079502A | 2018-05-24 | |||
| JPH05185240A | 1993-07-27 | |||
| JPH0972721A | 1997-03-18 | |||
| JPH03181847A | 1991-08-07 |
Attorney, Agent or Firm:
OBA, Mitsuru et al. (JP)
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