WEDM liquid formulated by special emulsified oil and tap water, conditional use of distilled water or magnetized water and emulsified oil preparation is better, the concentration of working fluid preparation depends on the thickness of the workpiece, material and processing accuracy requirements.

Thickness of the workpiece from the point of view, the thickness of less than 30mm thin workpiece, the working fluid concentration of 1O% ~ 15%; 30 ~ lOOmm thick workpiece, Suzhou line cutting cutting oil concentration of about 5% ~ 1O%; Thicker than 100mm thick workpiece, the concentration of about 3% to 5%.

From the workpiece material, easy to erase materials, such as copper, aluminum and other melting point and low latent heat of vaporization, the working fluid concentration can be increased in order to make full use of discharge energy, improve processing efficiency, but should also choose a larger diameter The electrode wire cutting, in order to facilitate full chip removal.

From the processing point of view, the working fluid concentration, discharge gap, the workpiece surface roughness is better, but not conducive to chip, easy to cause short circuit. Working fluid concentration is low, the workpiece surface roughness is poor, but conducive to chip removal.

In short, the preparation of line cutting fluid should be based on the actual processing conditions, considering the above factors, to ensure smooth chip removal, processing stable under the premise of maximizing the quality of the processed surface.