CNC milling cutters are the main cutting tools for mold processing, mainly used for machining flat surfaces, steps, grooves, formed surfaces, and cutting workpieces on milling machines. Its processing volume accounts for about 80% -90% of the total cutting volume of molds, making it a key focus for the development of mold processing tools.

　Today, Let me introduce the common types of CNC milling cutters:

　　

1. End mills have cutting edges on both the cylindrical surface and end face, which can be cut simultaneously or individually. The cutting edge on the cylindrical surface of the end mill is the main cutting edge, and the cutting edge on the end face is the secondary cutting edge. Note that axial feed cannot be performed because there is a groove in the middle of the end face of the end mill.

2. Face milling cutters have cutting edges on both the circular surface and end face, and the end cutting edge is a secondary cutting edge. Face milling cutters are often made into nested tooth structures, with teeth made of high-speed steel or hard alloy and a cutting body made of 40Cr.

3. Mold milling cutter, its structural feature is that the cutting edge is not filled on the ball head or end face, and the circumferential edge is connected to the ball head edge in a circular arc, which can perform radial and axial feed.

4. Keyway milling cutter, it has two teeth, both cylindrical and end faces have cutting edges, and the end face edge extends to the center. During processing, the axial feed first reaches the groove depth, and then the full length of the keyway is milled along the direction of the keyway.

5. Drum shaped milling cutter, its cutting edge is distributed on a circular arc surface with a radius of R, and the end face has no cutting edge. Control the upper and lower positions of the cutting tool during machining, and the corresponding cutting part of the cutting edge can cut different angles from negative to positive on the workpiece. The smaller the R, the wider the range of bevel angles that the drum milling cutter can process.

6. Forming milling cutters are generally designed and manufactured specifically for specific workpieces or machining content.