Process for resistance welding arrangement for carrying out the

Details Process for resistance welding arrangement for carrying out the Process for resistance welding arrangement for carrying out the

1992-03-03

1996-02-06

Shaw, Clifford C.

Electric heating

Metal heating

For bonding with pressure

219 64, B23K 1124

Patent

active

054897572

ABSTRACT:
A process and apparatus for resistance-welding produce a welding current which pulsates in periodic half-waves, in particular an alternating current. The, welding current is generated from a primary alternating voltage which is chopped n times (n>1) in each half-wave and pulse width modulated in order to regulate the welding current. A regulator is provided and has a storage device containing the current nominal values for each chopping interval, corresponding to the welding current form, for comparison with each actual current value determined in each chopping interval.

REFERENCES:
patent: 4414455 (1983-11-01), Schneider et al.
patent: 4521671 (1985-06-01), Fronius
patent: 4521672 (1985-06-01), Fronius
patent: 4554430 (1985-11-01), Belamaric
patent: 4654503 (1987-03-01), Tajiri
patent: 5237147 (1993-08-01), Pazzaglia
Soudronic publication "Elektrisches Widerstandsschweissen" MDI 00188 D, pp. 9 and 10.
Zeitung mit Informationen rund um Soudronic, 1st year publication, No. 1, Jun. 1985 (p. 3).

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