Title:
WELDED MEMBER AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2024/063010
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a welded member and a method for manufacturing the same. The present invention relates to a welded member in which a sheet set obtained by stacking two or more steel sheets is welded together through resistance spot welding, wherein: the average value of the shortest distance from the center of a welding point to the end surface of the steel sheet is 3.0 mm or greater; if there are a plurality of welding points, then the average distance between the centers of adjacent welding points is 6.0 mm or greater; at least one of the two or more steel sheets has a decarbonated layer on a steel-sheet obverse layer; and, on the steel sheet having the decarbonated layer, the thickness of the decarbonated layer between a base-material part and a welding-heat-affected part satisfies formula (1). (1): tw/tb < 1.0
More Like This:
Inventors:
SAWANISHI CHIKAUMI (JP)
KANAZAWA TOMOMI (JP)
TAKASHIMA KATSUTOSHI (JP)
MATSUDA HIROSHI (JP)
YAMAMOTO SHUNSUKE (JP)
HOSHINO KATSUYA (JP)
KAWANO TAKASHI (JP)
KANAZAWA TOMOMI (JP)
TAKASHIMA KATSUTOSHI (JP)
MATSUDA HIROSHI (JP)
YAMAMOTO SHUNSUKE (JP)
HOSHINO KATSUYA (JP)
KAWANO TAKASHI (JP)
Application Number:
PCT/JP2023/033591
Publication Date:
March 28, 2024
Filing Date:
September 14, 2023
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
B23K11/11; B23K11/16
Domestic Patent References:
| WO2016171237A1 | 2016-10-27 |
Foreign References:
| JP2020082102A | 2020-06-04 | |||
| JPH09291338A | 1997-11-11 |
Attorney, Agent or Firm:
KUMASAKA Akira et al. (JP)
Download PDF:
Previous Patent: WELDED MEMBER AND METHOD FOR PRODUCING SAME
Next Patent: WELDED MEMBER AND MANUFACTURING METHOD THEREFOR
Next Patent: WELDED MEMBER AND MANUFACTURING METHOD THEREFOR