Stud welding

Details Stud welding Stud welding

1993-07-12

1994-05-31

Shaw, Clifford C.

Electric heating

Metal heating

For bonding with pressure

219 98, B23K 920

Patent

active

053171241

ABSTRACT:
Method and apparatus for automatically compensating for spring fatigue and aging, mechanical wear, and the like in a stud welding machine. In order to hold plunge time at an ideal constant value, the plunge times of each weld are measured and a running average is generated to adjust the command to drop the stud onto the workpiece as necessary to hold plunge time substantially at the ideal constant value.

REFERENCES:
patent: 4297560 (1981-10-01), Netzsch
patent: 4988842 (1991-01-01), Van Allen
patent: 5030815 (1991-07-01), Glorioso

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