Consumable electrode type arc welding apparatus having a selecta

Details Consumable electrode type arc welding apparatus having a selecta Consumable electrode type arc welding apparatus having a selecta

1984-02-21

1985-12-24

Shaw, Clifford C.

Electric heating

Metal heating

By arc

2191305, 219137PS, B23K 910

Patent

active

045608571

ABSTRACT:
A consumable electrode type arc welding apparatus in which arcing can be positively started under a variety of welding conditions. A start current detector selects a predetermined limited start current according to the welding conditions. A start current period setting unit sets a start current period, also in accordance with the welding conditions. A start current control circuit supplies the predetermined limited start current to the workpiece and the wire electrode for the predetermined period of time at the start of arcing.

REFERENCES:
patent: 3141085 (1964-07-01), Manz
patent: 3213262 (1965-10-01), Marchand
patent: 3622744 (1971-11-01), Main et al.
patent: 4109130 (1978-08-01), Oku
patent: 4427874 (1984-01-01), Tabata et al.

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