In the process of machining parts, it should be noted that if the parts are too high, it is necessary to use knives of different lengths in layers. After using the knives for roughing, use a small knife to remove excess material. The purpose is to reduce the processing time and improve the work efficiency. If there is a slope, the slope knife should be used for processing.

In the process of machining, it is necessary to set the tolerance reasonably, the machining accuracy and precision and the computer calculation time must be balanced with each other, try to control the time to reduce the empty tool during work, it should be noted that if the tool material used Good toughness, low hardness, suitable for rough machining, if the tool material used has poor toughness and high hardness, it is suitable for finishing.