Direct current pulse welder

Details Direct current pulse welder Direct current pulse welder

1984-03-30

1986-01-14

Shaw, Clifford C.

Electric heating

Metal heating

For bonding with pressure

2191171, B23K 1124

Patent

active

045647356

ABSTRACT:
A direct current pulse welder including circuitry for controlling the amount of electric energy delivered to the weld site. By means of feedback techniques the output impedance of the welder is adjusted and changed by utilizing a voltage feedback signal and a current feedback signal to match the impedance of the weld site. Matching the impedance of the welder to the impedance of the weld site enables the welder to deliver the correct amount of power desired to each weld regardless of variations in actual impedance of the weld sites that occur in actual production situations.

REFERENCES:
patent: 3441708 (1969-04-01), Gilbert
patent: 3932725 (1976-01-01), Ganowski

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