Selection of CNC milling cutter?

July 01, 2022

Milling cutter is a kind of rotary cutter with one or more teeth, which is used for milling. When working, each cutter tooth cuts off the spare quantity of the workpiece in turn. Milling cutter is mainly used to process plane, step, groove, forming surface and workpiece on milling machine. According to work requirements, milling cutters can be divided into cylindrical milling cutters, face milling cutters, end milling cutters, etc. Surface milling cutter is mainly used for plane machining on vertical milling machine, end milling machine or gantry milling machine. There are milling cutter teeth on the end face and circumference.

However, when machining the existing plane milling cutter head, it is necessary to immediately change an angle or one side of the blade, and the process is cumbersome. In the process of rapid machining, the milling friction between the blade and the workpiece to be machined generates a lot of heat. The heat dissipation conditions of the existing milling cutter are not good enough, affecting the machining accuracy, resulting in the decline of the blade processing capacity, and the blade is prone to vibration, affecting the machining accuracy. This will lead to the reduction of the precision of the machined workpiece, and also lead to the decline of the blade processing capacity, resulting in the damage of the blade.

1. part shape (considering the machining surface): first observe the shape of the part. The machining surface can generally be plane, deep, cavity, thread, etc. the tools used for different machining surfaces are different. For example, the fillet milling cutter can mill convex surfaces, but cannot mill concave surfaces. The shape is a point that can be observed directly. You should choose the right tool, or you don't need to buy it.

2. milling cutter material: in fact, the machinability, chip forming, hardness and alloy elements of the end milling cutter should be considered. Tool manufacturers generally divide materials into steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium alloys and hard materials.

3. Processing conditions: the processing conditions of NC end milling cutter include the stability of machine tool fixture workpiece system, the clamping of tool handle, etc.

4. Machine tool fixture workpiece system stability: This requires understanding the available power of the machine tool, the type and specification of the spindle, the service life of the machine tool, etc., and in combination with the long overhang of the tool handle and its axial / radial runout.

5. Processing category and subcategory: This includes square shoulder milling, plane milling, profiling milling, etc., which need to be selected in combination with the characteristics of the tool.

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Author:

Mr. jiames.wang

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