Disadvantages of aluminum alloy materials

In the production process of aluminum alloy, casting defects such as shrinkage cavity, sand hole, air hole and slag inclusion are easy to appear. If electric welding, argon welding and other equipment are used to repair, it is easy to produce side effects such as thermal deformation due to large heat release, which cannot meet the requirements of repair welding.

Defect repair:

The cold welding repair machine uses the principle of high-frequency electric spark instantaneous discharge and non thermal surfacing to repair casting defects. Due to the small heat affected area of cold welding, it will not cause annealing deformation of the substrate, and there will be no cracks, hard spots and hardening.

Moreover, the welding strength is high, and the mending material and the matrix melt at the same time, and then solidify. The combination is firm. It can be processed by grinding, milling, filing, etc., and it is dense and does not fall off. Cold welding repair machine is an ideal method to repair small defects such as pores and sand holes in aluminum alloy.