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Patent Searching and Data


Title:
LAP FILLET ARC WELDING JOINT AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2018/159404
Kind Code:
A1
Abstract:
Provided is a lap fillet arc welding joint of a high-strength steel plate, the joint having excellent fatigue strength. This lap fillet arc welding joint, which is formed by overlapping and welding two steel plates so that at least a weld toe section-side steel plate becomes a high-strength steel plate, satisfies the relationship of the following equation (1) when the maximum and minimum values of the Vickers hardness in a range extending from the weld toe section to a base material are HU and HL, respectively, at a position which, in the plate thickness direction, is 0.2 mm from the steel plate surface on the weld toe section side. HU-HL≤300 (1)

Inventors:
SAWANISHI CHIKAUMI (JP)
MATSUDA HIROSHI (JP)
TAGAWA TETSUYA (JP)
IKEDA RINSEI (JP)
Application Number:
PCT/JP2018/006172
Publication Date:
September 07, 2018
Filing Date:
February 21, 2018
Export Citation:
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Assignee:
JFE STEEL CORP (JP)
International Classes:
B23K9/02; B23K9/00; B23K9/095; B23K9/16; B23K9/23; B23K31/00; B62D21/00
Foreign References:
JP5909143B22016-04-26
JP2005103622A2005-04-21
Attorney, Agent or Firm:
KUMASAKA Akira et al. (JP)
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