发明公开
EP3159095A1 METHOD FOR BUTT WELDING, BUTT WELDED JOINT, AND OUTSIDE JOINT MEMBER FOR CONSTANT VELOCITY UNIVERSAL JOINT
审中-公开
澳大利亚保加利亚德克萨斯州弗吉尼亚州弗吉尼亚州弗吉尼亚州
- 专利标题： METHOD FOR BUTT WELDING, BUTT WELDED JOINT, AND OUTSIDE JOINT MEMBER FOR CONSTANT VELOCITY UNIVERSAL JOINT
- 专利标题（中）： 澳大利亚保加利亚德克萨斯州弗吉尼亚州弗吉尼亚州弗吉尼亚州
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申请号： EP15809146.2申请日： 2015-05-20
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公开(公告)号： EP3159095A1公开(公告)日： 2017-04-26
- 发明人: NAKAGAWA, Naoki , SUZUKI, Shintaro , NAKANO, Kenichi , FUJITA, Takuya , SUZUKI, Kiyohiro , NATSUME, Renji , SUGIYAMA, Tatsuro , KOBAYASHI, Masazumi
- 申请人： NTN Corporation
- 申请人地址： 3-17, Kyomachibori 1-chome Nishi-ku Osaka-shi, Osaka 550-0003 JP
- 专利权人： NTN Corporation
- 当前专利权人： NTN Corporation
- 当前专利权人地址： 3-17, Kyomachibori 1-chome Nishi-ku Osaka-shi, Osaka 550-0003 JP
- 代理机构： Grünecker Patent- und Rechtsanwälte PartG mbB
- 优先权： JP2014125500 20140618
- 国际公布： WO2015194308 20151223
- 主分类号： B23K26/21
- IPC分类号： B23K26/21 ; B23K15/00 ; F16D3/20
摘要：
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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