Electric heating – Metal heating – By arc
Patent
1994-03-31
1995-05-02
Shaw, Clifford C.
Electric heating
Metal heating
By arc
21913001, 901 42, B23K 912
Patent
active
054121752
ABSTRACT:
A method of operating an arc welding apparatus which controls and moves a welding wire of a welding torch and detects a weld between a work and the welding wire after completion of an arc welding, includes: a first step of cutting off a welding voltage to the welding wire to thereby extinguish a welding arc; a second step of detecting a weld state between the welding wire and the work; a third step of lifting the welding wire away from the work when the welded state is detected at the second step; a fourth step of detecting the welded state between the welding wire and the work after completion of the third step; a fifth step of impressing the welding voltage to the welding wire when a welded state has been detected at the fourth step; a sixth step of detecting the welded state between the welding wire and the work after completion of the fifth step; a seventh step of executing, when the welded state has been detected at the sixth step, at least one of the stopping of the operation of the arc welding apparatus, displaying of the welded state, and informing an operator of the welded state; and an eighth step of moving the apparatus to another location when the welded state has not been detected at the second, fourth, and sixth steps.
Matsushita Electric - Industrial Co., Ltd.
Shaw Clifford C.
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