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Title:
METHOD AND DEVICE OF COMBINED WELDING BY ARC AND LASER USING BELT-LIKE ELECTRODE
Document Type and Number:
Japanese Patent JPH10244369
Kind Code:
A
Abstract:

To prevent generation of solidification crack and blowhole while securing deep penetration.

A groove between oppositely facing base materials 1, 1 is irradiated with laser 9 before arc welding, with penetration deepened in the bottom of the groove by the laser heat. In the succeeding arc welding, a belt-like electrode 8 having a long shape in the weld line direction is used, generating arc between the electrode and the base material of the groove, and melting the base material 1, 1 in the entire groove by the arc heat.


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Inventors:
HAYASHI MASAKAZU
Application Number:
JP4862297A
Publication Date:
September 14, 1998
Filing Date:
March 04, 1997
Export Citation:
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Assignee:
KUBOTA KK
International Classes:
B23K9/16; B23K9/00; B23K26/21; B23K26/346; B23K28/02; (IPC1-7): B23K9/16; B23K9/00; B23K26/00; B23K28/02
Attorney, Agent or Firm:
Yoshihiro Morimoto