In the mechanical processing need to pay attention to the problem is very much, so the mechanical processing personnel before the workpiece operation, should let the mechanical processing personnel fully understand the need to pay attention to the problem, so as to better shorten the mechanical processing time, reduce the problems encountered in the process of mechanical processing, improve the quality of the workpiece.

When the mechanical processing workpiece is too high, should be used to open a knife of different lengths, and then remove the remainder with a knife. Flat knife should be used in the processing of the plane, can effectively reduce the processing time, if there is a slope and is an integer, the slope knife should be used for processing.

Large machining materials with high hardness should choose inverse milling processing; The material hardness is low should choose down milling processing; The finishing adopts the inverse milling machining, and the finishing adopts the downward milling machining. Large machining tool toughness, low hardness, suitable for rough processing; Tool toughness is poor, high hardness, suitable for finishing.