Welding is a very common technology in the industry and it is also necessary to have an important technology, in the welding time must pay attention to otherwise it is easy to make the welding effect is not up to standard, then what factors affect the welding quality of welding?

The content and type of the alloy elements have great influence on the strength, endurance and hardness of the weld.

The physical function of the pore to pore number, shape and distribution of materials such as thermal conductivity, thermal expansion rate and quenching rigid, these physical function directly affects the material weldability, welding is of the same composition smelting material is more difficult. On the part of laser welding, many of the pores can make the welding strength and the welding process can not be carried out.

The laser welding of low carbon steel, Ni and Co alloy and Cu alloy can be successfully carried out under the premise of certain conditions. In sintering process, the welding quality can be ensured by preheating and slow cooling after welding. The micro hardness distribution of the weld zone can be decreased, the hardness decreases and the joint resistance increases.

Sintering condition in hydrogen and differentiation of ammonia and vacuum sintering material can be successful for laser welding in clean recovery air sintering material after welding the pores, cavity, mixed oxides and smaller; in addition, suitable sintering temperature, holding time, pressure and temperature pressure curve is welding the success of primary guarantee.