Introduction to the application and types of CNC milling cutters on CNC machine tools

by:Ronix Tools     2021-06-13
A CNC milling cutter is a rotary cutter with one or more teeth used for milling. When working, each cutter tooth intermittently cuts off the margin of the workpiece. Main milling cutters, steps, grooves, forming surfaces and cutting workpieces, etc.   CNC milling cutter is a tool used for cutting in machine manufacturing, also known as cutting tool. In a broad sense, cutting tools include both cutting tools and abrasive tools; at the same time, 'CNC cutting tools' include not only cutting blades, but also accessories such as tool holders and tool holders! According to the tool structure,    CNC milling cutters can be divided into:    special types: such as compound tools, shock-absorbing tools, etc.   Welding type: Welding method is used to connect the cutter head and the cutter bar.  Integral type: The tool is integrated, manufactured from a blank, without splitting.  Machine clamp type: The machine clamp type can be divided into two types: non-indexable and indexable; usually the CNC tool adopts the machine clamp type.  The classification of CNC milling cutters on CNC machine tools:   1. Face milling cutter, the circumferential surface and end face of the face milling cutter have cutting edges, and the end cutting edge is the secondary cutting edge. Face milling cutters are mostly made of sleeve inserts. The cutter teeth are high-speed steel or cemented carbide, and the cutter body is 40Cr.  2. End mills. Both the cylindrical surface and the end face of the end mill have cutting edges. They can be cut at the same time or separately. The cutting edge on the cylindrical surface of the end mill is the main cutting edge, and the cutting edge on the end surface is the secondary cutting edge. Note that because there is a groove in the middle of the end face of the end mill, it is not possible to do axial feed.  3. Mould milling cutter, its structural feature is that the ball head or end face is not full of cutting edge, the circumferential edge and the ball head edge arc connected, and it can be fed radially and axially.  4. Forming milling cutters are generally designed and manufactured specifically for specific workpieces or processing content.   5. Keyway milling cutter, it has two teeth, the cylindrical surface and the end surface have cutting edges, and the end surface is extended to the center. When machining, the axial feed is first to reach the groove depth, and then the full length of the key groove is milled along the key groove direction.   6. CNC milling cutter drum milling cutter, its cutting edge is distributed on the arc surface with radius R, and the end face has no cutting edge. During processing, the upper and lower positions of the tool are controlled. Corresponding to the cutting position of the cutting edge of the face, different bevel angles from negative to positive can be cut on the workpiece. The smaller the R, the wider the range of bevel angles that can be processed by the drum milling cutter.
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