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Title:
METHOD FOR MANUFACTURING OUTER JOINT MEMBER FOR CONSTANT VELOCITY UNIVERSAL JOINT AND ULTRASOUND FLAW DETECTION METHOD FOR WELDED SECTION
Document Type and Number:
WIPO Patent Application WO/2017/006702
Kind Code:
A1
Abstract:
A method for manufacturing an outer joint member 11, 112 of a constant velocity universal joint 10, 102 that is obtained by configuring a cup section 12, 122, on the inner circumference of which track grooves 30, 302 with which torque-transmitting elements 19, 23, 41 engage are formed, and a shaft section 13, which is formed on the bottom of said cup section 12, 122, from separate members and welding the cup member 12a, 12a2 that forms the cup section 12, 122 to the shaft member 13a that forms the shaft section 13, wherein the manufacturing method is characterized in being provided at least with: a welding step S6 for irradiating a beam on the ends of the cup member 12a, 12a2 and the shaft member 13a that are to be joined to weld same; and an ultrasound flaw-detecting step S6k for inspecting the welded section 49 formed in the welding step with multiple ultrasound flaw-detecting modes using a single probe 160.

Inventors:
NAGAI Hiromi (1578 Higashikaizuk, Iwata-shi Shizuoka 10, 〒4388510, JP)
SAKAKIBARA Yasuhiko (1578 Higashikaizuk, Iwata-shi Shizuoka 10, 〒4388510, JP)
Application Number:
JP2016/067357
Publication Date:
January 12, 2017
Filing Date:
June 10, 2016
Export Citation:
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Assignee:
NTN CORPORATION (3-17, Kyomachibori 1-chome Nishi-ku, Osaka-sh, Osaka 03, 〒5500003, JP)
International Classes:
F16D3/20; B23K15/00; B23K26/21; B23K31/00; G01N29/265
Foreign References:
JP2013100859A2013-05-23
JPS58144742A1983-08-29
JPH1019859A1998-01-23
JP2001050941A2001-02-23
JP2006220608A2006-08-24
JPH0415061U1992-02-06
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (Ehara Patent Office, 15-26 Edobori 1-chome, Nishi-ku, Osaka-sh, Osaka 02, 〒5500002, JP)
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