In this controller, the peak welding current is controlled by the keyhole existing-time in a period, by means of the feedback of reflecting plasma-flame voltage...

• 结果表明,该系统可以在脉冲穿孔等离子弧焊接中实现“一脉一孔”过程,不仅保证了连续、稳定、可靠的穿孔焊接过程而且可以得到良好的焊缝成形。