Title:
METHOD OF PLASMA KEYHOLE WELDING
Document Type and Number:
Japanese Patent JP2001150141
Kind Code:
A
Abstract:
To provide a method of plasma keyhole welding by which an arc start is surely executed and a normal weld zone is available.
In the method of plasma keyhole welding by butting welded materials whose plate thickness is larger than 3 mm, the method of plasma keyhole welding is characterized by the fact that a hole for starting the welding is bored in the direction of the plate thickness of the welded plate materials at a starting location of the welding of the plasma keyhole, and that the welding is started from the hole for starting the welding. Further, the diameter of the hole for starting the welding is 0.2 to 0.7 times the plate thickness of the welded plate material.
Inventors:
SAKUNO FUMIHIKO
TAKEDA YOSHIAKI
KOBAYASHI KATSURA
ASHINO TATSUMI
TAKEDA YOSHIAKI
KOBAYASHI KATSURA
ASHINO TATSUMI
Application Number:
JP33414399A
Publication Date:
June 05, 2001
Filing Date:
November 25, 1999
Export Citation:
Assignee:
NIPPON STEEL WELDING PROD ENG
International Classes:
B23K10/00; (IPC1-7): B23K10/00
Attorney, Agent or Firm:
Hiroaki Tamura (1 outside)
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