一、薄壁零件的焊接在精密元件、电子器件的焊接生产中,传感器、电容器、继电器、电子管、晶体管等薄壁金属壳体的焊接,是一个典型的焊接技术问题。可考虑的方案很多,为氩弧焊、钎焊、电子束焊、压焊、激光焊等。其中、氩弧焊可算作一种简便的方案。与钎焊相比,它不需要钎料、钎剂;与电子束焊相比,它不需要真空室;与压焊相比,它不需要接触零件、对零件施加压力;与激光焊相比,它的设备简单,因此,从这些方面来说,氩弧焊是一个可供优选的方案。但是,用普通的氩弧焊方法来焊接薄壁零件时,质量不高。当焊接电流太小时,电 First, the thin-walled parts of the welding precision components, the welding of electronic devices, sensors, capacitors, relays, tubes, transistors and other thin-walled metal shell welding is a typical welding technology. There are many solutions that can be considered for TIG welding, brazing, electron beam welding, pressure welding, laser welding and the like. Among them, argon arc welding can be regarded as a simple solution. It does not require brazing material or flux compared to brazing; it does not require a vacuum chamber compared to electron beam welding; it does not require contact with parts and applies pressure to the parts compared to brazing; compared with laser welding , Its equipment is simple, therefore, from these aspects, argon arc welding is a preferred solution. However, when welding thin-walled parts by the ordinary argon arc welding method, the quality is not high. When the welding current is too small, electricity