Method for noise reduction

Details Method for noise reduction Method for noise reduction

1991-02-25

1992-08-11

Shaw, Clifford C.

Electric heating

Metal heating

By arc

21913051, B23K 910

Patent

active

051381320

ABSTRACT:
This invention relates to a method for noise reduction and stabilization of the welding arc in TIG-ac-welding machines with self-commutated inverter current sources where the alternating frequency of the welding current is preferably changed in the inverse direction as a function of the amount of the welding current.

REFERENCES:
patent: 4876433 (1989-10-01), Kashima et al.

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