How To Solve The Problem of Deep Welding Marks in Resistance Welding?

Excessive depth of resistance welding marks may affect the welding quality and structural strength of the workpiece. Here are some common solutions:

1. Adjusting welding parameters: By adjusting welding parameters such as current, welding time, and welding pressure, the welding depth can be controlled. Reducing welding parameters, especially welding current and time, may help reduce the depth of weld marks.

2. Changing electrode shape and size: Using electrodes of appropriate shape and size can alter the thermal distribution of the welding point, thereby affecting the welding depth. For example, increasing the electrode area can disperse welding heat and reduce the depth of weld marks.

3. Optimize workpiece clamping method: Appropriate workpiece clamping method can reduce the deformation of the workpiece during the welding process, thereby reducing the depth of welding marks. Ensure that the workpiece is firmly clamped and positioned correctly to avoid unnecessary deformation.

4. Reduce welding time: Shortening welding time can reduce the input of welding heat, thereby reducing the depth of welding marks. But it is necessary to ensure that the shortened welding time can still guarantee the firmness of the welding points.

5. Control the cleanliness of the welding surface: Ensure that the welding surface is clean and free of impurities such as grease, dirt, or oxides. These impurities may cause uneven welding depth and result in deep weld marks.

6. Check the status of electrodes and welding machines: Regularly check the status of electrodes and welding machines to ensure they are working properly. Damaged or severely worn electrodes may result in uneven welding depth and excessive weld marks.

7. Multiple pass welding: For welding thicker or special materials, multiple pass welding can be used to gradually stack the welding layer to control the welding depth and ensure welding quality.

Through the above methods, the problem of deep welding marks can be effectively solved, and the welding quality and structural strength of the workpiece can be ensured. In practical operation, it is necessary to flexibly choose appropriate methods for adjustment and optimization according to specific situations.

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