磁控细丝埋弧焊熔滴过渡对焊缝跟踪信号的影响

For the problem of filaments submerged arc welding's droplet transition is buried under the flux observation not easily, and the transition signal interference magnetic-control sensor seam tracking signal, based on the detailed analysis of the transverse alternating magnetic field force of submerged arc welding droplet transition frequency change, with the current waveforms reflect droplet transition characteristic ,to extract the different excitation frequency of the seam tracking signal spectrum analysis, and conducted a simulation verification with Matlab after superposition of the ideal seam tracking signal and melt dripping transition signal. Finally adopts the method of wavelet filter to filtering submerged arc welding droplet transition signal. Actual seam tracking test results show that: the droplet transition signal after filtering the filaments of submerged arc welding seam tracking precision is improved. So as to the further study of submerged arc welding droplet transfer and implementation of submerged arc welding seam tracking stability control of the foundation