Control of stud-welding apparatus

Details Control of stud-welding apparatus Control of stud-welding apparatus

1990-09-06

1991-04-09

Shaw, Clifford C.

Electric heating

Metal heating

For bonding with pressure

B23K 920

Patent

active

050066862

ABSTRACT:
Method of controlling stud-welding apparatus wherein the lifting coil is essentially current and voltage free at the beginning of the plunge stroke but the plunge stroke is damped by a pulse current applied to the lifting coil a very short time before impact and ceased when the stud contacts the workpiece.

REFERENCES:
patent: 3242307 (1966-03-01), Mowry et al.
patent: 3456090 (1969-07-01), Wenrich et al.
patent: 4562328 (1985-12-01), Shoup

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