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Welding spatter can be reduced this way for mid frequency welder [DCS14]

Dec 28,2023

In the operation of mid frequency welder we may encounter the situation of spark spatter. Metal spatter can lead to scratches in the base metal. How to avoid such a situation?

DCS14 spot welding 114

Let's first understand the cause of the spatter and its source.

In the welding process, the interface of the weld melts rapidly in a short time. The heat of the metal expands instantly. The molten liquid does not have time to cool down. Under the effect of pressure, the liquid squirts out from the molten core, resulting in spatter. Too much heat tends to form spatter.

Cause of spatter	Methods for reducing spatter
When welding the electrode pressure is too small to press workpiece tightly	Adjust the electrode pressure to tighten the workpiece
The pre-pressure time is insufficient or the welding time is too long	Adjust the length of pre-pressure time or welding time
There is dirt on the surface of the workpiece or a gap between the workpiece, welding current is too large	Clean the dirt on surface, compact the workpiece, reduce the current
The electrode cap is asymmetrical or worn, and the current density is enlarged, thus the spatter is increased	Grinding or replacing the electrode cap