Title:
INDIRECT SPOT WELDING METHOD
Document Type and Number:
WIPO Patent Application WO/2010/087508
Kind Code:
A1
Abstract:
Provided is an indirect spot welding method wherein go stone-shaped nuggets formed in molten state can be stably obtained during indirect spot welding. The electrical connection time is divided into two time bands (t1, t2) in indirect spot welding, pressurization is carried out under a pressurizing force (F1) is applied and electrical connection is carried out at a current value (C1) during the first time band (t1), and then pressurization is carried out under a pressurizing force (F2) lower than (F1) and electrical connection is carried out at a current value (C2) higher than (C1) during the next time band (t2).
Inventors:
MATSUSHITA, Muneo (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 〒1000011, JP)
松下宗生 (〒11 東京都千代田区内幸町二丁目２番３号ＪＦＥスチール株式会社 知的財産部内 Tokyo, 〒1000011, JP)
松下宗生 (〒11 東京都千代田区内幸町二丁目２番３号ＪＦＥスチール株式会社 知的財産部内 Tokyo, 〒1000011, JP)
Application Number:
JP2010/051549
Publication Date:
August 05, 2010
Filing Date:
January 28, 2010
Export Citation:
Assignee:
JFE STEEL CORPORATION (2-3 Uchisaiwai-cho 2-chome, Chiyoda-ku Tokyo, 11, 〒1000011, JP)
ＪＦＥスチール株式会社 (〒11 東京都千代田区内幸町二丁目２番３号 Tokyo, 〒1000011, JP)
MATSUSHITA, Muneo (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 〒1000011, JP)
ＪＦＥスチール株式会社 (〒11 東京都千代田区内幸町二丁目２番３号 Tokyo, 〒1000011, JP)
MATSUSHITA, Muneo (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 〒1000011, JP)
International Classes:
B23K11/11; B23K11/24; B23K103/04
Attorney, Agent or Firm:
OCHIAI, Kenichiro (JFE Techno-Research Corporation 7th Floor, Yanagiya Building, 1-10, Nihonbashi 2-chome, Chuo-k, Tokyo 27, 〒1030027, JP)
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