What are the techniques for operating CNC machine tools?

Numerical control machine tool is a high-precision and efficient automated machine tool. The use of numerical control lathe can improve processing efficiency and create more value. The emergence of numerical control lathe has freed enterprises from outdated processing techniques. The processing technology of numerical control lathe is similar to that of ordinary lathe. However, since numerical control lathe is a one-time fixture and continuously completes all Turning processes automatically, what are the skills in operation? Let's take a brief look below:

In terms of metal cutting processing, the three major factors are the raw materials being processed, cutting equipment, and cutting conditions. These decisions determine the processing time, tool life, and processing quality. The economically useful processing method must be the correct choice of cutting conditions.

The three factors of cutting conditions: cutting speed, feed rate, and cutting depth directly lead to tool damage. With the increase of cutting speed, the temperature of the cutting edge will rise, and mechanical, chemical, and thermal wear will occur. If the cutting speed increases by 20%, the tool life will be reduced by half.

The relationship between feed conditions and tool wear occurs within a small boundary. But with a large feed rate, the cutting temperature rises, and there is significant wear in the back. It has less impact on the cutting tool than the cutting speed. Although the influence of cutting depth on cutting tools is not as large as cutting speed and feed rate, in micro cutting depth, the hard layer of the material being cut will also affect the life of the tool.

Users need to choose the cutting speed to be used based on the raw material being processed, hardness, cutting shape, raw material variety, feed rate, cutting depth, and other factors. The selection of processing conditions is based on these factors. The ideal condition is to achieve a lifespan through regular and stable wear and tear.

However, in essence, the choice of tool life is related to tool wear, changes in machined dimensions, surface quality, cutting noise, machining heat, and other factors. When determining processing conditions, it is necessary to discuss based on the essential condition. For difficult to process materials such as stainless steel and heat-resistant alloys, it is advisable to use coolant or use blades with good rigidity.