In the work, we have a lot of things are very important, because in the production process, we have a lot of matters to pay attention to, in the process, there are factors that will lead to the effect of the work. There are many times because of a small choice and affect the final effect, then in the process of CNC machining, the cutting amount is very important, so let’s understand how important the choice of cutting amount of CNC machining is?
Cutting speed, feed rate and cutting depth are the three factors of cutting conditions of CNC lathe, which directly cause tool damage. With the increase of cutting speed, the tool tip temperature will rise, which will produce mechanical, chemical and thermal wear. If the cutting speed is increased by 20%, the tool life will be reduced by 1 / 2.
The relationship between feed condition and tool back wear occurs in a very small range. But the feed rate is large, the cutting temperature rises, and the back wear is large. It has less effect on the tool than the cutting speed. Although the influence of cutting depth on the tool is not as great as the cutting speed and feed rate, but when the cutting depth is small, the hardened layer of the material to be cut will also affect the tool life.
The user should select the cutting speed according to the material to be processed, hardness, cutting state, material type, feed rate, cutting depth, etc. The most suitable processing conditions are selected on the basis of these factors. Regular and stable wear is the ideal condition for service life. However, in practice, the choice of tool life is related to tool wear, size change, surface quality, cutting noise and processing heat. When determining the processing conditions, it is necessary to study according to the actual situation. For stainless steel and heat-resistant alloy and other difficult to machine materials, can use coolant or choose a good rigid blade
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