In this paper,in view of the different requirements for the dynamic characteristics of the power supply by the different states of the pulse MIG welding for aluminium alloy,the concept of self adjusting dynamic characteristics,as well as its achieving ways and testing results are put forward.
针对铝合金脉冲ＭＩＧ焊在不同的状态下对电源动特性有不同的要求，提出了自调节动特性的概念、实现方法和试验效果。