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汽车传动轴的总成一般是由传动轴万向节叉、传动轴管、传动轴花键轴等部分组成。在传动轴管两端与节叉、花键轴连接处需要进行环缝焊接。焊接这两处焊缝一般有两种焊接方法:一种是手工电弧焊;另一种是自动CO_2保护焊接法。近年来,通过汽车传动轴行业的评比,证明自动CO_2焊接法与手工电弧焊相比,生产效率可提高十几倍。从焊接质量上看,
Automotive transmission shaft assembly is generally composed of the transmission shaft universal joint fork, transmission shaft, spline shaft drive shaft and other components. At both ends of the drive shaft tube and the spline, spline shaft connection at the need for girth welding. Welding these two welds generally have two kinds of welding methods: one is manual arc welding; the other is automatic CO_2 protection welding. In recent years, through the automobile shaft industry competitions, that automatic CO_2 welding method compared with manual arc welding, the production efficiency can be increased ten times. From the welding quality point of view,