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Title:
FRICTION-STIRRING PROCESSING METHOD FOR OXIDE-DISPERSION-STRENGTHENED PLATINUM
Document Type and Number:
WIPO Patent Application WO/2013/137030
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide, in friction-stirring joining of oxide-dispersion-strengthened platinum, a friction-stirring processing method that, through control of the organization of the welding site, can further improve high-temperature strength in a welding area as compared to a case where joining is performed by melt welding or band forge welding, or a friction-stirring processing method that can effectively reform the surface of oxide-dispersion-strengthened platinum. This friction-stirring processing method for oxide-dispersion-strengthened platinum comprises the following: a preparation step in which work pieces (1A, 1A') formed of oxide-dispersion-strengthened platinum are readied and a contact joining surface (2A) that causes the work pieces to be mutually in contact or substantially in contact is designated as a processing region; a friction-stirring step in which the processing region is friction-stirred with a rotating tool (3) to produce a malleable region in the processing region; a solidification step in which the malleable region is allowed to solidify to form a processed section; and a heat treatment step in which the processed section is heated to at least 600°C and to at least the temperature of the tool used in the friction-stirring step.

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Inventors:
MIYAZAWA TOMOAKI (JP)
MORITA KENSUKE (JP)
IWAMOTO YUICHI (JP)
MARUKO TOMOHIRO (JP)
Application Number:
PCT/JP2013/055717
Publication Date:
September 19, 2013
Filing Date:
March 01, 2013
Export Citation:
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Assignee:
FURUYA METAL CO LTD (JP)
International Classes:
B23K20/12; B23K31/00; C21D9/50; C22C5/04; C22C32/00
Domestic Patent References:
WO2004043642A12004-05-27
WO2007102380A12007-09-13
WO2008062541A12008-05-29
Foreign References:
JP2004090050A2004-03-25
JPH11335754A1999-12-07
JP2004195480A2004-07-15
JP2006320958A2006-11-30
JP2007237259A2007-09-20
Attorney, Agent or Firm:
IMASHITA, Katsuhiro et al. (JP)
Under now Katsuhiro (JP)
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