Generally, the pulse interval is in the range of 10-250us, which can basically adapt to various processing conditions and can perform stable processing.
When the discharge energy of a single pulse is determined, the pulse interval decreases, the frequency increases, the number of discharges per unit time increases, and the average processing current increases, so the cutting speed increases. The pulse interval has a greater impact on the cutting speed under certain technological conditions. , The impact on the surface roughness is small. In fact, the pulse interval is too small, the discharge products are too late to be eliminated, and the discharge gap is too late to fully deionize, which will make the processing unstable, easy to burn the workpiece or break the wire, and the pulse interval is too large. It will significantly reduce the cutting speed, and in severe cases, continuous feeding will not be possible, and the processing will become unstable.
The choice of pulse interval and pulse width has a lot to do with the thickness of the workpiece. For thick workpieces, the pulse interval should be large to maintain the stability of processing.
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