Ensure that the electrodes are centered when the medium frequency spot welding machine is working, because electrode eccentricity will have a negative impact on the welding process and welding quality. Either axial or angular eccentricity of the electrode can lead to irregularly shaped solder joints and reduced solder joint size, since eccentricity causes asymmetric distribution of pressure and current.
It is obvious that the stiffness of the welding machine frame has an impact on the centering of the electrode, because the electrode on the welding machine with small stiffness will produce axial and angular eccentricity under the action of the electrode force. Therefore, people usually tend to use high-rigidity spot welding machine frames. However, the appropriate stiffness should be determined as too high a stiffness is neither economical nor necessary.
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Post time: Feb-22-2024