Automatically controlled current source for welding apparatus

Details Automatically controlled current source for welding apparatus Automatically controlled current source for welding apparatus

B - Operations, Transporting

23

K

327/64

B23K 9/10 (2006.01) B23K 9/09 (2006.01)

Patent

CA 1127245

24 ABSTRACT OF THE DISCLOSURE An apparatus for short-arc welding comprises a controllable current source, feed rollers for controllably feeding a consumable wire electrode to the weld location, and a control unit for automatically adjusting the current source in dependence upon the welding sequence, The current source arranged to provide welding periods divided into short-circuit intervals, arc intervals and optionally also rest intervals. For the purpose of automatically adjusting the welding sequence to changes in the supply of electrode material to the weld location, the control unit includes a regulator for adjusting the power output delivered by the current source as a pre- determined function of the duration of at least one of said intervals in a sequence of welding periods.

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