摆动电弧焊的数学模型研究与仿真

Research and simulation of the swing arc mathematical model

针对熔敷铁水流动引起的焊缝坡口内熔池变化带来的焊缝跟踪精度降低的问题,提出一种斜线和二次抛物线相结合的V+U型焊缝坡口模型。该模型采用分段曲线融合方法改进焊缝坡口形状,并在SIMULINK建立的数学模型进行焊缝坡口跟踪的仿真实验。实验结果表明,改进的焊缝坡口模型的焊接电流与实际焊接电流的差值波动更小,更接近实际焊缝坡口形状。

A V＋U type weld model based on diagonal and parabolic is presented to improve seam tracking with molten iron flow in weld pool.A subsection curve fusion strategy is utilized for establishing pool model and tracking test by SIMULINK mathematical model.The experimental results show that compared with other models,the current deviation is smaller and the groove shape is more real.