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Patent Searching and Data


Title:
FRICTION WELDING METHOD AND WELD JOINT STRUCTURE
Document Type and Number:
Japanese Patent JPH10328856
Kind Code:
A
Abstract:

To effect friction welding for a hollow member such as an extruded shape or a honeycomb panel without causing deformation or weld defects in a work.

In continuously welding two extruded shapes 1, 2 in the weld line direction by inserting into the weld zone a welding tool 3 constituted of a metallic rod that is formed with a material essentially harder than one for the extruded shapes 1, 2, moving the tool while it is rotated, and thereby generating a frictional heat; the end 12 of one shape 1 and that 13 of the other shape 2 are arranged so that their projecting parts 12a, 13a are superposed on each other, with the welding tool 3 positioned at the superposed area; the tool 3 is rotated with a load added to it to the extent that no buckling is caused in the shapes 1, 2; and welding is performed by using a plastic flow generated by frictional heat from the rotation.


Inventors:
OKAMURA HISANOBU
FUNYU MASAO
SATO AKIHIRO
AOTA KINYA
ESUMI MASAKUNI
ISHIMARU YASUO
Application Number:
JP1997000146858
Publication Date:
December 15, 1998
Filing Date:
June 04, 1997
Export Citation:
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Assignee:
HITACHI LTD
International Classes:
B23K20/12; B23K33/00; B61D17/04; B62D17/00; B23K103/10; (IPC1-7): B23K20/12
Attorney, Agent or Firm:
武 顕次郎