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Patent Searching and Data


Title:
LIQUID COOLING JACKET MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2019/038972
Kind Code:
A1
Abstract:
The present invention is characterized by including: a preparation step in which a level difference section (115) having a level difference bottom surface (115a) and a level difference side surface (115b) that rises up at a slant is formed at an inner peripheral edge of a peripheral wall section (111); a mounting step in which the level difference side surface (115b) and a side surface of a sealing body (103) are butted together to form a first butt section (J11), and the level difference bottom surface (115a) and a back surface of the sealing body (103) are overlapped to form a second butt section (J12); and a main welding step in which friction stir welding is performed by causing a rotating tool (F) to travel one round along the first butt section (J11), in a condition in which only a stirring pin (F2) that rotates is brought into contact with the sealing body, a tip end surface (F3) is inserted deeper than the level difference bottom surface (115a), and an outer peripheral surface of the stirring pin (F2) is separated from the level difference side surface (115b).

Inventors:
HORI HISASHI (JP)
SEO NOBUSHIRO (JP)
Application Number:
PCT/JP2018/010990
Publication Date:
February 28, 2019
Filing Date:
March 20, 2018
Export Citation:
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Assignee:
NIPPON LIGHT METAL CO (JP)
International Classes:
B23K20/12
Domestic Patent References:
WO2017033849A12017-03-02
WO2016132768A12016-08-25
Foreign References:
JP2010245085A2010-10-28
JP2003225779A2003-08-12
JP2010279958A2010-12-16
Attorney, Agent or Firm:
ISONO INTERNATIONAL PATENT OFFICE, P.C. (JP)
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