Selection Of Milling Cutter Body

The price of milling cutters is relatively expensive, and a 100mm diameter face milling cutter body may cost over $600, so careful selection should be made to truly meet specific machining needs.
Firstly, when choosing a milling cutter, one should consider its number of teeth. For example, a coarse tooth milling cutter with a diameter of 100mm has only 6 teeth, while a dense tooth milling cutter with a diameter of 100mm can have 8 teeth. The size of the tooth pitch will determine the number of teeth involved in cutting during milling, affecting the smoothness of cutting and the requirements for the cutting rate of the machine tool. Each milling cutter manufacturer has its own series of coarse and dense tooth milling cutters.
Excessive cutting force during heavy load rough milling can cause vibration in machine tools with poor rigidity. This vibration can cause the hard alloy blade to break, thereby shortening the tool life. Choosing a coarse tooth milling cutter can reduce the power requirements for the machine tool. So, when the spindle hole specifications are small (such as R-8, 30 #, 40 # taper holes), a coarse tooth milling cutter can be effectively used for milling processing. 
Coarse toothed milling cutters are commonly used for rough machining because they have larger chip pockets. If the chip groove is not large enough, it will cause difficulty in rolling chips or increase friction between chips and the blade or workpiece. At the same feed rate, the cutting load per tooth of a coarse tooth milling cutter is greater than that of a dense tooth milling cutter.
When precision milling, the cutting depth is relatively shallow, usually 0.25-0.64mm, and the cutting load per tooth is small (about 0.05-0.15mm). The required power is not large, and a dense tooth milling cutter can be selected, and a larger feed rate can be used. Due to the limited metal removal rate in precision milling, it is not harmful to have a smaller chip pocket for a dense tooth milling cutter.
For spindles with large taper hole specifications and good rigidity, a dense tooth milling cutter can also be used for rough milling. Due to the large number of teeth involved in cutting with a dense tooth milling cutter, when using a larger cutting depth (1.27-5mm), attention should be paid to whether the machine tool power and rigidity are sufficient, and whether the milling cutter chip groove is large enough. The chip removal situation needs to be verified through experiments. If there is a problem with chip removal, the cutting amount should be adjusted in a timely manner.