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Patent Searching and Data


Title:
SPOT WELDING METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/208610
Kind Code:
A1
Abstract:
In the present invention, while a welding current is applied with respect to a laminate body (32) comprising thick metal plates (60, 62) and thin metal plates (64, 66), a first welding pressure (F1) with respect to the laminate body (32) from an upper tip (30) contacting the metal plate (66) and a second welding pressure (F2) with respect to the laminate body (32) from a lower tip (26) contacting the metal plate (60) are changed relative to each other. Specifically, F1 < F2 in a first step which is an initial period of welding, F1 = F2 in a second step which is an intermediate period of welding, and F1 > F2 in a third step which is a final period of welding.

Inventors:
MIWA HIROSHI (JP)
TERAGAITO YOHEI (JP)
Application Number:
PCT/JP2016/068465
Publication Date:
December 29, 2016
Filing Date:
June 22, 2016
Export Citation:
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Assignee:
HONDA MOTOR CO LTD (JP)
International Classes:
B23K11/16; B23K11/11; B23K11/24
Foreign References:
JP2006055898A2006-03-02
JP2013132662A2013-07-08
Attorney, Agent or Firm:
CHIBA Yoshihiro et al. (JP)
Takehiro Chiba (JP)
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