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目前工业中大量采用金属薄壁结构。在航空及航天部门,金属薄壁结构的应用尤为广泛。使用材料除钢、不锈钢,钛及铌外,还有铝及铝合金。铝合金另件加工过程中容易发生变形,制造时也会带来几何形状的误差,这些在自动焊时,都会造成弧长的变化,从而影响焊缝质量。因些,在铝合金薄壁结构的自动焊接过程中,采用弧长自动调节装置仍然是焊接工
At present, a large number of industrial use of thin-walled metal structure. In the aviation and aerospace sector, the application of thin-walled metal structures is particularly widespread. Materials used in addition to steel, stainless steel, titanium and niobium, there are aluminum and aluminum alloy. Aluminum alloy parts easily deformed during processing, manufacturing will bring geometric errors, which in the automatic welding, will result in arc length changes, thus affecting the quality of the weld. Because of these, in the aluminum alloy thin-walled structure of the automatic welding process, using arc length automatic adjustment device is still a welder