In the metal cutting process, the correct selection of metal cutting fluid can not only reduce the cutting temperature, reduce tool wear, extend tool life, but also reduce the surface roughness of the workpiece, reduce cutting power and reduce the temperature of the cutting area. How to properly select the metal cutting fluid to achieve the desired effect is one of the issues that we deserve to explore more deeply. The use effect of the metal cutting fluid, in addition to the various properties of the cutting fluid itself, should generally be considered in accordance with factors such as the material of the workpiece, the processing method and the tool material. It is described as follows: 1. Selection of roughing cutting fluid When rough machining is performed with high-speed steel cutter, the machining allowance and cutting amount are large, and a large amount of cutting heat is generated, which also produces a large friction.
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