Abstract:The waveform controlled short-circuit CO2 arc welding has been developed and applied
in industries widely. To guarantee its process stability and weld quality in automatic applications
further, the torch-height, the distance from torch to workpiece, which may be altered by the welding
distortion and assembling errors of joints, is detected via measuring the wire electrode extension
during the metaphase of short-circuit and then controlled. The acquired data is filtered by rule-based
fuzzy algorithm and/or shif… Show more
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