1. Different milling methods. According to different processing conditions, in order to improve the durability and productivity of the tool, different milling methods can be selected, such as up-cut milling, down milling, symmetrical milling and asymmetrical milling.
2. When cutting and milling successively, each tooth is continuing to cut, especially for end milling. The fluctuation of the milling cutter is relatively large, so vibration is inevitable. When the frequency and the natural frequency of the machine tool are the same or multiples during the vibration, the vibration is more serious. In addition, high-speed ball cutter tools also require frequent manual cycles of hot and cold shocks, which are more prone to cracks and chipping, which reduce their durability.
3. Multi-knife and multi-edge cutting, ball knives have more to eat, and the total length of the cutting edge is large, which is conducive to improving the durability and production productivity of the tool, and has many advantages. But this only exists in these two aspects.
First, the cutter teeth are prone to radial runout, which will cause unequal load and uneven wear of the cutter teeth, which will affect the quality of the machined surface; second, the cutter teeth must have sufficient chip space, otherwise the cutter teeth will be damaged.
4. High productivity The ball cutter rotates continuously during milling, and allows a higher milling speed, so it has a higher productivity.