荷兰埃塞斯等人最近介绍了一个等离子弧和气体金属极电弧相组合应用的焊把(见图示)。由图可见,等离子弧钨极并不居于中心,而只是气体金属极电弧接触管与它的填充金属极焊丝一起占有轴线位置。在电源一定下操作所得到的焊缝,与单独使用两种焊接工艺中的任何一种所得到的结果是不同的。因此这种方法被认为是一种新工艺。尽管 Ethers, the Netherlands, recently introduced a welding torch for plasma arc and gas metal arc applications (see illustration). It can be seen from the figure that the plasma arc tungsten electrode does not occupy the center, but only the gas metal arc contact tube occupies an axial position with its filler metal wire. The weld obtained by operating under certain power supply is different from the result obtained by using either welding method alone. So this method is considered a new process. in spite of