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Patent Searching and Data


Title:
WELDING METHOD AND WELDING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/216041
Kind Code:
A1
Abstract:
According to the present invention, an energy amount adjustment is performed with respect to one or more specific application units (241, 242) when applying energy to a cylindrical member pair (40), in which another cylindrical member (11) is completely inserted into a cylindrical member (22), and melting and welding the cylindrical member pair in the circumferential direction. This adjustment is performed according to a rotation angle of the cylindrical member pair so that the relationship Pd+Pw>θ is satisfied between an output down rotation angle Pd by which the energy amount is reduced from a normal energy amount HP during a welding completion process, an overlap rotation angle Pw by which a portion irradiated with the energy and surrounding the vicinity of the cylindrical member pair overlaps with the normal energy amount HP, and a separation angle θ between adjacent application units in the rotation direction around the axis.

Inventors:
KATO Noritsugu (1-1 Showa-cho, Kariya-cit, Aichi 61, 〒4488661, JP)
KUSANO Shigeyuki (1-1 Showa-cho, Kariya-cit, Aichi 61, 〒4488661, JP)
KATO Yuki (1-1 Showa-cho, Kariya-cit, Aichi 61, 〒4488661, JP)
HAYAKAWA Tsuyoshi (1-1 Showa-cho, Kariya-cit, Aichi 61, 〒4488661, JP)
Application Number:
JP2019/012514
Publication Date:
November 14, 2019
Filing Date:
March 25, 2019
Export Citation:
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Assignee:
DENSO CORPORATION (1-1 Showa-cho, Kariya-city Aichi, 61, 〒4488661, JP)
International Classes:
B23K26/21; B23K15/00; B23K26/00; B23K26/067; B23K26/08; F02M51/06
Domestic Patent References:
WO2017050521A12017-03-30
Foreign References:
JP3799599B22006-07-19
JP2009285669A2009-12-10
JP2001252778A2001-09-18
JP2011156584A2011-08-18
Attorney, Agent or Firm:
TOKKYO GYOMUHOJIN MEISEI INTERNATIONAL PATENT FIRM (12-17, Sakae 1-chome Naka-ku, Nagoya-sh, Aichi 08, 〒4600008, JP)
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