Computer Numerical Control (CNC) milling machines are widely used in modern manufacturing to produce high-precision components with complex shapes. CNC milling machines use a variety of cutting tools to remove material from a workpiece and create the desired shape. One of the most important cutting tools used in CNC milling is the milling cutter, which is a rotating tool that has multiple cutting edges.

There are several types of milling cutters, including end mills, ball nose mills, and face mills. Each type of milling cutter is designed for specific applications and has unique features that make it suitable for different materials and cutting conditions.

End mills are the most common type of milling cutter and are used for cutting flat surfaces, contours, and slots. They have a cylindrical shape with a flat end and cutting edges on the sides. Ball nose mills, on the other hand, are used for cutting curved surfaces and have a rounded end with cutting edges on the sides. Face mills are used for cutting large flat surfaces and have multiple cutting edges on the face of the tool.

In addition to the type of milling cutter, the cutting parameters such as speed, feed, and depth of cut also play a critical role in the performance of the CNC milling process. The cutting parameters are programmed into the CNC machine control system, and the machine adjusts the cutting speed, feed rate, and depth of cut automatically to achieve the desired result.

To achieve high-precision milling, the milling cutters used in CNC machines must be made of high-quality materials and have precise geometries. Carbide, high-speed steel, and ceramic are the most commonly used materials for milling cutters due to their high wear resistance and toughness.