electric arc welders and method for controlling the heat produced by an electric arc welder

摘要

It is an arc welder that produces a braid pattern between workpieces. each weld bead comprises a central portion including a joint region between the workpieces and separate edge regions of the joint region. The welder includes a power supply that provides a welding waveform to a welding electrode to generate an arc to obtain the desired heat for welding, a welding torch, and an oscillator to oscillate the torch between the welding regions. soldering edge. one controller causes the power supply to operate in a first mode that utilizes a first waveform during welding within the junction region, and in a second mode that uses a second waveform that has a positive component greater than the first one. waveform during welding within the edge regions. the controller determines a welding rod extension value based on the first waveform but not the second waveform and performs seam tracking based on the second waveform but not the first waveform .