Title:
WELD JOINT AND METHOD OF PRODUCING WELD JOINT
Document Type and Number:
Japanese Patent JP2014094408
Kind Code:
A
Abstract:
To suppress joint-by-joint variation in the joint strength of weld joints formed by resistance spot welding of a steel plate with an aluminum plate so as to obtain high joint strength stably.
In a weld joint 100 of a steel plate 110 with an aluminum plate 120, the smallest plate thickness tmin on the aluminum plate side is 20% or smaller of the plate thickness t2 of the aluminum plate 120 before welding; the residual area of the aluminum plate is 10-30% of the area of the aluminum plate before welding; and the area of melting solidified parts 130a and 130b of aluminum is 10% or smaller of the residual area of the aluminum plate. A method of producing the weld joint 100 is also provided.
Inventors:
MURAYAMA HAJIME
SAKIYAMA TATSUYA
NISHIHATA HITOMI
MIYAZAKI YASUNOBU
OKADA TOSHIYA
SAKIYAMA TATSUYA
NISHIHATA HITOMI
MIYAZAKI YASUNOBU
OKADA TOSHIYA
Application Number:
JP2013003600A
Publication Date:
May 22, 2014
Filing Date:
January 11, 2013
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP
UACJ CORP
UACJ CORP
International Classes:
B23K11/20; B23K11/11; B23K11/30; B23K103/18
Domestic Patent References:
| JP2005152958A | 2005-06-16 | |||
| JP2007260777A | 2007-10-11 | |||
| JP2005334971A | 2005-12-08 | |||
| JPH067951A | 1994-01-18 | |||
| JP2008200687A | 2008-09-04 | |||
| JPH01170586A | 1989-07-05 | |||
| JP2006015349A | 2006-01-19 |
Attorney, Agent or Firm:
Takayoshi Kokubun