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Title:
外側継手部材の製造方法および外側継手部材
Document Type and Number:
Japanese Patent JP6377424
Kind Code:
B2
Abstract:
For butt-welding, which includes bringing joining end surfaces (50 and 51) of a cup member (12a) and a shaft member (13a) into abutment against each other and radiating a high energy intensity beam from a radially outer side, the shaft member (13a) has a recess (52 or 53) on a radially inner side of the joining end surface (51) to obtain a welded portion (49) having a closed hollow cavity on a radially inner side after butt-welding. The joining end surface (50) (protruding surface (50a)) of the cup member (12a) protrudes toward a radially inner side with respect to an inner diameter (E) of the joining end surface (51) of the shaft member (13a). With this, a welded portion (74) of an outer joint member (11) of a constant velocity universal joint (10), which is manufactured by joining the cup member (12a) and the shaft member (13a), can be improved in strength and quality.

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Inventors:
Naoki Nakagawa
Shintaro Suzuki
Kenichi Nakano
Takuya Fujita
Suzuki Seihiro
Kenji Natsume
Tatsuro Sugiyama
Masazumi Kobayashi
Application Number:
JP2014125500A
Publication Date:
August 22, 2018
Filing Date:
June 18, 2014
Export Citation:
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Assignee:
ntn corporation
International Classes:
B23K15/00; B23K26/21; F16D3/20
Domestic Patent References:
JP2006289500A
JP2011112039A
JP2012057696A
JP2000321252A
Foreign References:
WO2013076850A1
WO2015107981A1
Attorney, Agent or Firm:
Kunihiko Shiromura
Tsuyoshi Kumano
Yoshiyuki Shiraishi



 
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