Aluminum has encountered many problems during the welding process, which is due to some reasons caused by aluminum, but through our continuous efforts we have finally found a solution, so these problems will not be a problem, and we will put the problems together at home. question.
1. The biggest problem at the beginning is that the joints are severely softened, the strength coefficient is low, and quality problems are prone to occur.
2. There is also the problem that aluminum plates are prone to pores during the welding process. This is also a problem for you. After all, pores appear on the aluminum plate, which will also have a certain impact on the appearance.
3. Hot cracks are also prone to occur during welding. This is because the temperature is higher during welding, so problems are more likely to occur.
4. At the same time, we should also understand that when welding time is required, high power density will easily produce a refractory oxide film on the surface of the aluminum plate, which is also a big problem during the welding process.
Aluminum plate welding problems mainly include aluminum plate spot welding and aluminum plate welding cracks.
The causes and solutions to the problem of weak spot welding of aluminum plates are as follows:
Welding pressure is too high. Can reduce welding pressure.
The oxide film formed on the surface of the aluminum plate is too thick. The surface can be pickled or mechanically treated before welding.
The model of aluminum plate spot welding machine is wrong. Medium frequency inverter DC spot welding machine can be selected.
The causes and solutions of aluminum plate welding cracks are as follows:
Thermal stress is too large or too many impurities are introduced during welding. The welding temperature should be controlled, and the appropriate welding method and welding sequence should be selected.
Material properties, welding parameters and joint design effects. The material of the aluminum plate should be tested, the welding parameters should be set appropriately, and the quality of the welding materials should be paid attention to.
Cracks appear in the welds. Repair welding should be carried out in time.
