The basic knowledge that beginners in CNC machining centers must learn is that cutting and feed rates are essential

The cutting amount of the process is a factor that must be considered when programming a CNC machining center. When selecting the cutting amount, it is necessary to fully consider various factors that affect cutting. Reasonable cutting conditions and cutting amounts can effectively improve the quality and output of machining center operations. There are many factors that affect cutting conditions, such as the configuration of the machining center itself, the selected cutting tools, the material of the workpiece, hardness, and rigidity; Types of cutting and cooling methods; Cutting speed, depth, feed rate; The precise determination of cutting parameters and feed rates cannot be ignored.

We know that cutting operations are the main working mode of machining centers. In the cutting operation of machining centers, the speed of cutting directly affects the cutting efficiency. If the cutting speed is too low, the cutting time will be prolonged and the tool will not be able to perform its function; If the cutting speed is too fast, although it can shorten the cutting time, the tool is prone to generate high heat, which affects the tool's lifespan. So ensuring cutting speed is of utmost importance in our work.

1. Pay attention to the matching degree between tool materials and workpiece materials.

The maximum allowable cutting speed varies depending on the material of the cutting tool. The high temperature resistance and cutting speed of high-speed steel cutting tools, carbide cutting tools, and ceramic cutting tools are different. If the tool has a long service life, a lower cutting speed should be used accordingly.

2. Cutting depth and feed rate

The cutting depth is directly proportional to the feed rate and cutting resistance. The cutting depth and feed rate are large, and the cutting resistance is also high. If the cutting process has strict temperature requirements, the cutting speed should be reduced due to the increased heat during the cutting process.

3. Shape of cutting tools

The shape of the cutting tool, the size of the angle, and the sharpness of the cutting edge all affect the selection of cutting speed.

4. Selection of cutting fluid

The two main functions of cutting fluid for machining centers are lubrication and cooling. Cutting tools are essential for machining.

In general, when selecting cutting parameters in CNC programming, it is necessary to follow the actual requirements of the machining center and the durability of the tool in order to accurately determine the cutting and feed rates.