Electric arc pulse welder with short circuit control

Details Electric arc pulse welder with short circuit control Electric arc pulse welder with short circuit control

B - Operations, Transporting

23

K

B23K 9/10 (2006.01) B23K 9/073 (2006.01) B23K 9/09 (2006.01) B23K 9/095 (2006.01)

Patent

CA 2486081

An electric arc welder with a waveform generator controlled to create a welding process involving current flow between an electrode and a workpiece wherein the welding process comprises a succession of pulse waveforms, each having a current ramp up portion, a peak current portion, a current ramp down portion and a background current portion, a voltage sensing circuit to sense a short circuit between the electrode and the workpiece and a reset circuit to reset the waveform generator upon sensing of a short circuit. The preferred electrode is a solid wire which may be in the form of a metal cored wire.

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