Title:
WELDED MEMBER AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2024/063012
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a welded member and a manufacturing method therefor. The present invention is a welded member in which a plate assembly obtained by overlaying two or more steel plates is resistance spot welded. The total plate thickness tall of the plate assembly and the minimum thickness tweld of a resistance spot welded portion satisfy formula (1). At least one of the two or more steel plates is an Si-containing galvanized steel plate containing Si in an amount of 0.5-3.0 mass%. A specific region A of the Si-containing galvanized steel plate is formed in a lower layer below a galvanized layer, and the thickness da of the region A in the plate thickness direction satisfies formula (2). (1): 0.5
Inventors:
KANAZAWA TOMOMI (JP)
SAWANISHI CHIKAUMI (JP)
TAKASHIMA KATSUTOSHI (JP)
YAMAMOTO SHUNSUKE (JP)
HOSHINO KATSUYA (JP)
NISHIYAMA TAKESHI (JP)
MATSUDA HIROSHI (JP)
SAWANISHI CHIKAUMI (JP)
TAKASHIMA KATSUTOSHI (JP)
YAMAMOTO SHUNSUKE (JP)
HOSHINO KATSUYA (JP)
NISHIYAMA TAKESHI (JP)
MATSUDA HIROSHI (JP)
Application Number:
PCT/JP2023/033593
Publication Date:
March 28, 2024
Filing Date:
September 14, 2023
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
B23K11/16; B23K11/11
Domestic Patent References:
| WO2022097736A1 | 2022-05-12 | |||
| WO2022097734A1 | 2022-05-12 |
Foreign References:
| JP2012102370A | 2012-05-31 | |||
| JP2019000906A | 2019-01-10 |
Attorney, Agent or Firm:
KUMASAKA Akira et al. (JP)
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