Microprocessor-controlled controller for resistance welding mach

Details Microprocessor-controlled controller for resistance welding mach Microprocessor-controlled controller for resistance welding mach

1982-03-25

1984-06-26

Shaw, C. C.

Electric heating

Metal heating

For bonding with pressure

219114, B23K 1124

Patent

active

044568096

ABSTRACT:
A precision key pad controlled controller for a resistance welding machine is provided which may be set to deliver welding power to each of a multiplicity of welding operations on a precisely controlled repeatable basis. The controller incorporates circuitry for assuring that an accurately controlled amount of power is delivered for each welding operation by providing precise phase angle control despite variations in line voltage and line disturbances. The controller is constructed to incorporate selected numbers of steps to be performed automatically in sequence by the controlled welding machine in carrying out a particular welding operation. The duration of each step of the welding machine, the amount of welding power to be delivered, and other parameters are set for each particular welding operation by the key pad, and displayed on an associated alphanumeric display.

REFERENCES:
patent: 4039928 (1977-08-01), Noftsker et al.
patent: 4301351 (1981-11-01), Mathews
patent: 4317980 (1982-03-01), Goodrich et al.

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