METHOD AND SYSTEM TO USE COMBINATION FILLER WIRE FEED AND HIGH INTENSITY ENERGY SOURCE FOR WELDING

摘要

A hot-wire and arc welding system and method. The system includes an arc welding power supply to supply a welding waveform. The welding waveform includes a plurality of welding pulses, with each welding pulse having a peak welding current level. The system also includes a hot-wire power supply to supply a heating waveform. The heating waveform includes a plurality of heating pulses, with each heating pulse having a peak heating current level. A controller, which is operatively connected to the arc welding power supply and the hot-wire power supply, synchronizes the plurality of welding pulses and the plurality of heating pulses such that at least a portion of the peak welding current level overlaps with at least a portion of the peak heating current level.

主权项

1. A hot-wire and arc welding system, the system comprising:
an arc welding power supply to supply a welding waveform, the welding waveform including a plurality of welding pulses, each welding pulse having a peak welding current level; a welding torch to receive the welding current and create an arc between an electrode and a workpiece, the arc forming a molten puddle in the workpiece; a hot-wire power supply to supply a heating waveform, the heating waveform including a plurality of heating pulses, each heating pulse having a peak heating current level; a contact tube to receive the heating waveform, which resistance heats a filler wire, the contact tube to direct the filler wire to the molten puddle; and a controller operatively connected to the arc welding power supply and the hot-wire power supply, the controller to synchronize the plurality of welding pulses and the plurality of heating pulses such that at least a portion of the peak welding current level overlaps with at least a portion of the peak heating current level, wherein a welding pulse ramp rate from a background current level of each of the plurality of welding pulses to the respective peak welding current level is less than a heating pulse ramp rate from a background current level of each of the plurality of heating pulses to the respective peak heating current level.