引言在机车车辆生产中,薄板焊接占全部焊接量的88％,其中薄板焊接占焊接总长的29％,薄板骨架焊接占59％。在生产过程中除现有的那些不用填充金属的焊接方法外,在钨极惰性气体保护灯接技术的基础上,研究出一种有利于自动化、保证质量、并且成本低的焊接方法,即不使用填充金属的焊接方法(简称ZWL)。图立所示部分构件通过一些生产设备已经成功 Introduction In the production of rolling stock, sheet metal welding accounts for 88% of the total amount of welding, in which sheet metal welding accounts for 29% of the total welding length and sheet metal skeleton welding amounting to 59%. In the production process in addition to those existing without the filler metal welding method, the Tungsten inert gas lamp technology, based on the study to develop a conducive to automation, quality assurance, and low cost welding method that is not Using filler metal welding method (referred to as ZWL). Some of the components shown in Figure stand through some production equipment has been successful