Factors Affecting the Current of Medium Frequency Spot Welding Machines

During the welding process of medium frequency spot welding machines, the operating frequency is limited by 50Hz, and the minimum adjustment cycle of the welding current should be 0.02s (i.e., one cycle). In small-scale welding specifications, the time for zero crossing will exceed 50% of the predetermined welding time, resulting in heat loss.

In this situation, welding with materials that have good thermal conductivity is extremely disadvantageous and will restrict welding speed in the case of continuous welding seams. Placing the workpiece between the electrode arms of the medium frequency spot welding machine will cause a significant change in the secondary circuit inductance, leading to unstable welding current.

This instability leads to inconsistent welding quality. Numerous experiments have shown that higher welding currents can cause the electrode arms to be affected by alternating electromagnetic forces, resulting in insufficient electrode pressure and poor weld quality.

Suzhou Agera Automation Equipment Co., Ltd. is engaged in the development of automated assembly, welding, testing equipment, and production lines, mainly applied in the fields of household appliances, hardware, automotive manufacturing, sheet metal, 3C electronics, and more. We offer customized welding machines and automated welding equipment and assembly welding production lines and assembly lines tailored to customer requirements, providing suitable overall automation solutions to assist companies in transitioning quickly from traditional to high-end production methods. If you are interested in our automation equipment and production lines, please contact us: leo@agerawelder.com