The arc electrode can be designed into multiple arcstructure to save the production of transparent electrode for lowering the production cost.
并且将弧形电极设计成多弧形结构可省去透明电极的制作，降低生产成本。
3
In order to solve Audi car muffler welding problems, a MIG automatic welding process and equipment arc developed which is suitable for the material, structure and joint type of the muffler.