Title:
ROTATE TOOL FOR FRICTION STIR WELDING, AND FRICTION STIR WELDING METHOD
Document Type and Number:
WIPO Patent Application WO/2012/101786
Kind Code:
A1
Abstract:
The purpose of the present invention is to prevent the excess increase in temperature of a tool main body in the friction stir welding of a high-melting-point material such as a steel, thereby prolonging the service life of the tool main body. A heat-removing body (4), which is a copper ring, is fixed between metal plates (1, 2) so as to form a void space (5) between the metal plates in such a manner that the heat-removing body (4) can be attached to or detached from an outer peripheral surface (3e) of a tool main body (3) and does not contact with the metal plates (1, 2) not to generate undesired frictional resistance. With regard to the material heat-removing body (4), the material for the heat-removing body (4), the position (L) at which the heat-removing body (4) is to be attached, the volume (V) of the heat-removing body (4), and the end-face tilt angle of the heat-removing body (4) are set in such a manner that the heat-removing body (4) can exhibit a satisfactory effect of preventing the increase in temperature. During the friction stir welding, a frictional heat generated at a tip part of the tool main body (3) is transferred to the tool main body (3, 13), and is then transferred to the heat-removing body (4) and stored in the heat-removing body (4). In this manner, the increase in temperature of the tool main body (3, 13) can be prevented.
Inventors:
KAGA SHINICHI (JP)
ONOSE MITSURU (JP)
TOMINAGA NORIAKI (JP)
SAITO TAKEHIKO (JP)
YOSHIMURA YASUTSUGU (JP)
HIRANO SATOSHI (JP)
PARK SEUNG HWAN (JP)
ONOSE MITSURU (JP)
TOMINAGA NORIAKI (JP)
SAITO TAKEHIKO (JP)
YOSHIMURA YASUTSUGU (JP)
HIRANO SATOSHI (JP)
PARK SEUNG HWAN (JP)
Application Number:
PCT/JP2011/051518
Publication Date:
August 02, 2012
Filing Date:
January 26, 2011
Export Citation:
Assignee:
MITSUBISHI HITACHI METALS (JP)
KAGA SHINICHI (JP)
ONOSE MITSURU (JP)
TOMINAGA NORIAKI (JP)
SAITO TAKEHIKO (JP)
YOSHIMURA YASUTSUGU (JP)
HIRANO SATOSHI (JP)
PARK SEUNG HWAN (JP)
KAGA SHINICHI (JP)
ONOSE MITSURU (JP)
TOMINAGA NORIAKI (JP)
SAITO TAKEHIKO (JP)
YOSHIMURA YASUTSUGU (JP)
HIRANO SATOSHI (JP)
PARK SEUNG HWAN (JP)
International Classes:
B23K20/12
Foreign References:
| JP2002153977A | 2002-05-28 | |||
| JP2007268667A | 2007-10-18 | |||
| JP2007290017A | 2007-11-08 | |||
| JP2009148804A | 2009-07-09 | |||
| JP2006218543A | 2006-08-24 | |||
| JPH1052773A | 1998-02-24 | |||
| JP2000334577A | 2000-12-05 | |||
| JP2004276056A | 2004-10-07 | |||
| JP2007054858A | 2007-03-08 |
Attorney, Agent or Firm:
KASUGA Yuzuru (JP)
Kasuga 讓 (JP)
Kasuga 讓 (JP)
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Claims: