Problems that should be paid attention to during cutting
The heat of cutting during milling is an intermittent heating phenomenon, and the teeth are cooled when they are not cut, which will contribute to the extension of tool life. The Japan Institute of Physics and Chemistry has conducted a comparative test on the tool life of turning and milling. The tool used for milling is a ball end mill, and the turning is a general turning tool. Both are in the same material to be processed and cutting conditions (due to different cutting methods, cutting The depth, feed rate, cutting speed, etc. can only be achieved in a consistent manner. Under the same environmental conditions, the cutting comparison test shows that the milling process is more advantageous for extending the tool life.
When cutting with a tool such as a drill with a center edge (ie, a cutting speed of 0 m/min) or a ball end mill, the life of the tool near the center edge is often low, but it is still stronger than that during turning. When cutting difficult-to-machine materials, the cutting edge is greatly affected by heat, which often reduces the tool life. If the cutting method is milling, the tool life will be relatively longer. However, difficult-to-machine materials cannot be milled from start to finish. There is always a need for turning or drilling in the middle. Therefore, corresponding technical measures should be taken for different cutting methods to improve processing efficiency.
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