1. The frequency and position of the operation are unreasonable.

Turning and milling composite machine tools are used for mass production, especially in mass production. While ensuring processing quality, improving processing efficiency and ensuring the stability of the processing process are the foundation for achieving good economic benefits. Choosing a simple tool change method is an effective way to reduce tool change assistance time, reduce machine wear, and reduce processing costs during batch machining of CNC turning. Improving the setting of tool change points for turning and milling composite machine tools is one of the effective attempts to achieve this goal. Therefore, it is necessary to carefully analyze, optimize, and improve the design in terms of fixture selection, tool path layout, tool row position, and usage sequence.

2. Unreasonable cutting amount

Reasonable cutting parameters can improve the processing efficiency of turning and milling composite machine tools. When the cutting speed increases by 10 times and the feed speed increases by 20 times, far exceeding the "forbidden zone" of traditional cutting, the cutting mechanism undergoes fundamental changes. The results showed that the metal removal rate per unit power increased by 30-40%, the cutting force decreased by 30%, the cutting life of the tool increased by 70%, the residual cutting heat on the workpiece was greatly reduced, the cutting vibration was almost eliminated, and the cutting process achieved a fundamental leap. According to the current situation of CNC turning and milling composite machine tools, increasing the feed rate per tooth can improve productivity and tool life.

Turning and milling composite CNC lathe

3. Selection of cutting tools

The selection of cutting tools is an important link in ensuring machining quality and improving machining efficiency. In order to improve productivity, CNC machine tools, especially in turning and milling processing, are developing towards high speed, high rigidity, and high power. This requires the tool to have the ability to withstand high-speed cutting and cutting, and its performance must be stable. When selecting tool materials, when machining conditions permit the selection of hard alloy tools, high-speed steel tools should not be chosen. Conditionally select tools with better performance and wear resistance, such as coated tools, cubic nitrided tools, ceramic blades, etc.