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Title:
FRICTION-STIR WELDING METHOD
Document Type and Number:
Japanese Patent JP2000343244
Kind Code:
A
Abstract:

To provide a method for obtaining a satisfactory joined surface in friction-stir welding.

In a friction-stir welding method, the projecting parts 22, 32 of two members 20, 30 are butted, which have the projecting parts 22, 32 at their tip parts, and friction-stir welding is performed by a rotary tool 10 inserted into a member from a projecting part side. The rotary tool 10 tilts so that the small diameter part 14 of the tip of the rotary tool, is positioned forward than the large diameter part of the rotary tool in its moving direction, and the deepest position of the large diameter part inserted into the projecting part, is positioned between the tops of the projecting parts 22, 32 and the outside surfaces of the members 20, 30 except the projecting part. At the time of performing the friction-stir welding by the rotation of the rotary tool, a means cutting the projecting part between the top of the projecting part and the outside surface of a member except the projecting part by a cutter 12 provided projectingly in the radius direction of the large diameter part of the rotary tool, is equipped.


Inventors:
ESUMI MASAKUNI
FUKUYORI KAZUNARI
SATO AKIHIRO
Application Number:
JP1999000149138
Publication Date:
December 12, 2000
Filing Date:
May 28, 1999
Export Citation:
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Assignee:
HITACHI LTD
HITACHI KASADO KIKAI CO LTD
International Classes:
B23K31/00; B23K20/12; B23K37/08; F16S1/00; (IPC1-7): B23K20/12; B23K31/00; B23K37/08; F16S1/00
Attorney, Agent or Firm:
沼形 義彰 (外1名)