The indexable face milling cutter of CNC machine tools is mainly used for milling planes. When rough milling, choose a smaller diameter of the milling cutter, because the cutting force during rough milling is large, choosing a small diameter milling cutter can reduce the cutting torque. When the CNC machine tool is used for finishing milling, the diameter of the milling cutter should be larger, and it is best to cover the entire width of the surface to be machined, so as to improve the precision and efficiency of adding T. When the machining allowance of the machine tool is large and uneven, the tool diameter should be smaller, otherwise,cnc machine manufacturer， the cutting quality of the workpiece will be affected due to the deep knife mark of the hanging tool.
High-speed steel end mills are mostly used for processing bosses and grooves, and are generally not used for processing the surface of the blank, because the hardened layer and sand inclusion on the surface of the blank will accelerate tool wear.
When processing the surface of the blank or roughing the hole, you can choose an end mill or corn milling cutter with cemented carbide for powerful cutting.
When machining the peripheral contour of a flat workpiece, an end mill C is often used.
In order to increase the accuracy of the groove width and reduce the number of tool changes, a milling cutter with a diameter of 7 than the groove width can be used during processing. The middle part of the groove is milled first, and then both sides of the groove are milled by the tool radius compensation function.
When processing three-dimensional curved surfaces or contours with variable bevel angles, ball-end milling cutters, ring milling cutters, drum milling cutters, tapered milling cutters, disc-shaped milling cutters, etc. are often used.
When the machining allowance is small and the surface roughness requirements are high, the face milling cutter with cubic boron nitride inserts or ceramic inserts can be used to enable high-speed cutting of machine tools.
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