Control for spot welding machine using electrodes as thermocoupl

Details Control for spot welding machine using electrodes as thermocoupl Control for spot welding machine using electrodes as thermocoupl

1992-09-29

1994-03-29

Shaw, Clifford C.

Electric heating

Metal heating

For bonding with pressure

219109, B23K 1125

Patent

active

052987116

ABSTRACT:
The present invention relates to a process for controlling the parameters of a welding operation performed by a spot-welding machine. The machine has two movable electrodes which are connected to a source of current that supplies a welding current. The process controls the welding parameters on the basis of at least one electric signal that is a function of the temperature in the welding zone. The electrical signal or signals are taken between the terminal of one of the electrodes (10, or 20) and one of the parts to be welded (30, 40). The electrode and part together constitute a thermocouple.

REFERENCES:
patent: 3309494 (1967-03-01), Hebert et al.
IBM Technical Disclosure Bulletin, vol. 26, No. 8, Jan. 1984, pp. 4108-4109; J. Kloepfer: "Method of measuring the circuit board temperature during drilling".

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