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专利名称：Electric arc welding system发明人：William S. Houston,Russell K. Myers申请号：US11503682申请日：20060814
公开号：US20060273076A1公开日：20061207
专利附图：
摘要：An electric arc welding system and method for creating a first AC welding arcwith a first current waveform between a first electrode and a workpiece by a first powersupply and a second AC welding arc with a second current waveform between a secondelectrode and a workpiece by a second power supply as the first and second electrodes
are moved in unison along a welding path where the first and second power supply eachcomprising an high speed switching inverter creating its waveform by a number of currentpulses occurring at a frequency of at least 18 kHz with the magnitude of each currentpulse controlled by a wave shaper and the polarity of the waveforms controlled by asignal. The first and second AC waveforms each have a positive portion and a negativeportion and a cycle period of about 10-20 ms and timing circuits for determining the pushand pull times between the arcs and a waveform adjusting circuit to limit the push andpull times to less than about 5.0 ms.
申请人：William S. Houston,Russell K. Myers
地址：Avon OH US,Hudson OH US
国籍：US,US
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