AUTOMATIC HORIZONTAL POSITION WELDING METHOD

Japanese Patent JP3233782

B2

PURPOSE: To greatly reduce the welding time by setting a welding torch to the prescribed upward torch angle and push angle, and executing the welding while the wire is swayed with the prescribed value.
CONSTITUTION: The upward torch angle of 10-15° is set to the groove of an upper plate 1, and the downward torch angle of 5-10° is set to the groove of a lower plate 2 respectively. A backing plate 4 is provided on the reverse side of a part 3 to be joined, and a face plate 5 is provided on the face side respectively. A welding torch 14 is set to the upward torch angle of 5-15° and the push angle of 30-40° by an angle adjuster 13. The arc position is adjusted by a torch position adjuster 13 while the welding wire is swayed with the amplitude of 2-15m/min, and the swaying speed of 0.1-2.0 times/second by an oscillator 17, and the welding of the first pass of the part 3 to be joined is executed. Then, the welding torch 14 is set to the upward torch angle of 5-10° and the drag angle of 5-10°, and the arc position is adjusted while the welding wire is swayed with the amplitude of 2-15m/min, and the swaying speed of 0.1-2.0 times/second, and the welding of the second pass of the part 3 to be joined is executed. This constitution improves the welding precision, and reduces the generation of the defective welding.

Hideharu Kobayashi
Eizo Ide
Hiroshi Iwabuchi
Masaru Matsumoto
Minoru Takeda

JP14676794A

November 26, 2001

June 28, 1994

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MITSUBISHI HEAVY INDUSTRIES,LTD.

B23K33/00; B23K9/00; B23K9/02; B23K9/095; B23K9/12; (IPC1-7): B23K9/02; B23K9/00; B23K9/095; B23K9/12; B23K33/00

JP6277179A
JP60210368A
JP5382635A
JP50120446A
JP60130478A
JP5736076A
JP6344139A
JP6138779A
JP4837503B1

Arata Ishikawa

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