Title:
WELDING METHOD AND WELDMENT
Document Type and Number:
WIPO Patent Application WO/2008/007620
Kind Code:
A2
Abstract:
A welding method in which workpieces that are an aluminum casting member (1) and an
aluminum expanded member (3) are welded together by AC arc welding with the use
of a wire (7) while the polarity of voltage applied between the wire (7) and the
workpieces is alternated. The AC arc welding is performed with the relationship of
|B|/(A + |B|) = not less than 0.128 maintained, where A is the time integration value
of an electric current when the wire (7) has a positive polarity and B is the time
integration value of an electric current when the wire (7) has a negative polarity.
This sets the amount of input heat in welding the aluminum casting member (1) to
be not more than 67.8 J/mm2.
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Inventors:
NAKAHARA, Keiji (())
仲原 啓二 (())
YANAGIHARA, Emi (())
柳原 恵美 (())
仲原 啓二 (())
YANAGIHARA, Emi (())
柳原 恵美 (())
Application Number:
JP2007/063568
Publication Date:
January 17, 2008
Filing Date:
July 06, 2007
Export Citation:
Assignee:
YOROZU CORPORATION (3-7-60, Tarumachi Kohoku-ku, Yokohama-sh, Kanagawa 60, 2228560, JP)
株式会社ヨロズ (〒60 神奈川県横浜市港北区樽町三丁目７番６０号 Kanagawa, 2228560, JP)
AHRESTY CORPORATION (1-38-1, Chuo Nakano-k, Tokyo 11, 1640011, JP)
株式会社アーレスティ (〒11 東京都中野区中央１－３８－１ Tokyo, 1640011, JP)
NAKAHARA, Keiji (())
仲原 啓二 (())
株式会社ヨロズ (〒60 神奈川県横浜市港北区樽町三丁目７番６０号 Kanagawa, 2228560, JP)
AHRESTY CORPORATION (1-38-1, Chuo Nakano-k, Tokyo 11, 1640011, JP)
株式会社アーレスティ (〒11 東京都中野区中央１－３８－１ Tokyo, 1640011, JP)
NAKAHARA, Keiji (())
仲原 啓二 (())
International Classes:
B23K9/23; B23K9/02; B23K9/173; B23K103/10; B23K9/23; B23K9/02; B23K9/173
Attorney, Agent or Firm:
MIYOSHI, Hidekazu et al. (Toranomon Kotohira Tower, 2-8 Toranomon 1-chom, Minato-ku Tokyo 01, 1050001, JP)
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