CNC lathe machining is about the importance of the amount of stock removal selection

For high-efficiency CNC lathe metal cutting, the material to be processed, the cutting tool, and the cutting condition are the three major elements. These determine machining time, tool life and machining quality. Cost-effective machining is necessarily a reasonable choice of cutting conditions.

The three elements of CNC lathe machining cutting conditions: cutting speed, feed and depth of cut directly cause the damage of the tool. As the cutting speed increases, the tip temperature rises, resulting in mechanical, chemical, and thermal wear. A 20% increase in cutting speed reduces tool life by 1/2.

The relationship between the feed condition and the wear behind the tool is very small. However, the feed is large, the cutting temperature rises, and the rear wear is large. It has less effect on the tool than the cutting speed. Although the impact of depth of cut on the tool is not as large as the cutting speed and feed, when cutting with a small depth of cut, the hardened layer of the material to be cut will also affect the life of the tool.

The user should choose the cutting speed to be used according to the material to be processed, hardness, cutting state, material type, feed, depth of cut, etc.

The selection of the most suitable processing conditions is based on these factors. Regular, stable wear and tear to reach the service life is the ideal condition.

However, in practice, the choice of tool life is related to tool wear, dimensional changes to be machined, surface quality, cutting noise, machining heat, etc. When determining the processing conditions, it is necessary to study according to the actual situation. For difficult-to-machine materials such as stainless steel and heat-resistant alloys, coolants can be used or rigid cutting edges can be used.