CNC machine tool is short for digital control machine tool, is a kind of automatic machine tool equipped with program control system. The control system can logically handle the program with control code or other symbolic instructions specified, and will be decoded, expressed in codified numbers, through the information carrier into the CNC device. After processing by the numerical control device to issue a variety of control signals, control the action of the machine tool, according to the shape and size of the drawing requirements, automatically process the parts out.
 
　　CNC machine tools better solve the complex, precision, small batch, multi-variety parts processing problems, is a flexible, high-performance automated machine tools, representing the development direction of modern machine tool control technology, is a typical mechatronics products.
 
　　Today, I would like to tell you about the selection of CNC machine tool milling cutters:.
 
　　CNC machine tool hard Taiwan gold indexable face milling cutter is mainly used for milling plane. Rough milling, milling cutter diameter to choose a smaller, because rough milling cutting force, choose a small diameter milling cutter can reduce the cutting torque. When the machine fine-milling, the milling cutter diameter is larger, preferably to accommodate the entire width of the surface to be machined, in order to improve the accuracy and efficiency of the plus T. Machine tools with large and uneven machining allowance, the tool diameter should be selected smaller, otherwise, it will affect the quality of the workpiece due to deep hanging tool marks.
 
　　High-speed steel end mills are mostly used for processing tabs and grooves, and are generally not used to process the rough surface, because the hardened layer of the rough surface and sand trap will accelerate tool wear.
 
　　When machining the rough surface or roughing holes, carbide-filled end mills or corn mills are available for strong cutting.
 
　　When machining the peripheral contour of the flat workpiece, end mills C are often used.
 
　　In order to improve the plus accuracy of the slot width and reduce the number of tool changes, a milling cutter with a diameter 7 wider than the slot width can be used for machining, milling the middle part of the slot first and then milling the two sides of the slot using the tool radius compensation function.
 
　　When processing three-dimensional surface or variable bevel profile shape, ball end mill, ring mill, drum mill, conical mill, disc mill, 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 machine tools.