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Title:
FRICTION STIR WELDING METHOD
Document Type and Number:
Japanese Patent JP2008238224
Kind Code:
A
Abstract:

To perform superior butt welding on workpieces to be joined, without causing a misjoined part so-called kissing bond in the weld zone of the workpieces, without causing root crack, with less tendency of fatigue fracture generation, and at a low cost and with excellent productivity.

In friction stir welding, a metallic foil 21 is clamped between the abutting part 33 including its periphery of workpieces 31, 32 and a backing 10, with a solid lubricating layer 22 interposed between the metallic foil 21 and the backing 10. Furthermore, a supporting body 23 is for facilitating support of the solid lubricant layer 22, but is not necessarily required.


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Inventors:
TSUJIKAWA MASATO
OKI YUKIO
AZUMA KENJI
Application Number:
JP2007082721A
Publication Date:
October 09, 2008
Filing Date:
March 27, 2007
Export Citation:
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Assignee:
OSAKA IND PROMOTION ORG
International Classes:
B23K20/12; B23K20/26; B23K103/10
Domestic Patent References:
JP2001205459A2001-07-31
JP2001121274A2001-05-08
JPH10202374A1998-08-04
JP2008137048A2008-06-19
JP2003126970A2003-05-08
JP2002224860A2002-08-13
JPH09206991A1997-08-12
JP2000288735A2000-10-17
Attorney, Agent or Firm:
Tetsuo Kakutani



 
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