摆动TIG焊搭接坡口数学建模与仿真

针对搭接坡口的特点,在摆动TIG焊搭接坡口电弧扫描的数学模型中采用电弧圆柱体体积的变化信号作为系统的输入信号,从而建立了系统的整体仿真模型.在保证工艺参数不变的情况下,比较分析了该模型的仿真结果与传统的利用焊枪高度变化为输入的模型的仿真结果以及实际的焊接波形之间的差异.结果表明,仿真结果与试验结果相吻合,证明该模型比传统的模型更为精确,更能反映实际情况.对搭接坡口的焊缝跟踪系统研究有一定的指导意义.

Mathematical modeling and simulation on the lap welding groove of waving TIG

According to the character of the lap joint groove, the signal of the changing bulk of the column as the input signal was introduced into the mathematical model for the waving TIG welding of the lap joint groove, and the simulating model for the whole system accordingly was set up.Keeping the techniques parameters, the differences between the simulating results of this modeling, the traditional results which was made use of changing the height of the welding torch and the welding experiments results were analyzed and compared.It proves that the model reflectes the reality, and more accurate than the traditional ones.