Pay attention to the high performance requirements of welded joints: welded joints should not only meet the static and dynamic mechanical performance indicators, but also have harsh low cycle fatigue performance requirements. ?

Pay attention to the high dimensional accuracy of welded parts: in order to ensure the assembly accuracy and dimensional stability of products, it is required that the precision deviation of thin-plate parts before welding and the thermal stress and deformation after welding are minimum.

Matters needing attention in vehicle welding operation

Before welding the protective electrical system, cut off the main power supply and remove the connection at one end of the battery. Because the electronic control system on the vehicle is becoming more and more complex, if the power supply of the vehicle is continuously supplied by various precision control modules and ECU during welding operation, the current generated in the welding process can easily lead to the damage of electronic equipment such as ECU.

When welding vehicle chassis, pay attention to avoid electrical and oil and gas pipelines, and do a good job of cleaning and protection in advance. In addition, the grounding wire of the welding machine should be close to the welding point according to the principle of proximity, so as not to damage the electrical circuit.