Ⅰ前言最近,高频脉冲直流 T1G 焊接法,因其效率高,质量好,故引起了注视,日本三菱电机公司从采用脉冲电流大大有利于在较小电流范围的电弧稳定性的观点出发,用自己研制的焊机就脉冲电流波形和电弧的挺度,熔深特性,高速焊接特性进行实验,研究,其结果如下。 I. INTRODUCTION Recently, high-frequency pulsed DC T1G welding has attracted attention because of its high efficiency and good quality. Japan’s Mitsubishi Electric Corporation, from the point of view of using pulsed current to greatly favor the arc stability in a relatively small current range, The welding machine developed by ourselves is used for experiments and studies on the pulse current waveform and arc stiffness, penetration characteristics and high-speed welding characteristics. The results are as follows.