In milling, the factors that affect the processing speed mainly include workpiece material, tool material, cutting parameters, machine tool performance and so on.

In milling, the factors that affect the processing speed mainly include workpiece material, tool material, cutting parameters, machine performance and so on.

1. Workpiece material

The mechanical properties such as hardness, strength and toughness of the workpiece material have a direct impact on the milling speed. Materials with high hardness, high strength, and good toughness require lower cutting speeds and larger cutting forces, while materials with low hardness, low strength, and poor toughness can use higher cutting speeds and smaller cutting forces.

2. Tool material

The hardness, wear resistance and impact resistance of tool materials have an important influence on the milling speed. Tool materials with high hardness, good wear resistance and strong impact resistance can adopt higher cutting speed and larger cutting depth, while tool materials with poor performance need to adopt lower cutting speed and smaller cutting depth.

3. Cutting parameters

Cutting parameters such as cutting speed, feed rate and back cutting amount have a direct impact on the milling speed. The higher the cutting speed, the higher the processing efficiency, but the cutting force and cutting heat will increase accordingly, which will easily lead to tool wear and thermal deformation of the workpiece. The greater the amount of feed and back cutting, the higher the processing efficiency, but it will also increase the cutting force and cutting heat, affecting the processing quality and tool life.

4. Machine performance

The rigidity, accuracy and stability of the machine tool also have an important influence on the milling speed. Machine tools with good rigidity, high precision and strong stability can adopt higher cutting speed and larger cutting depth, while machine tools with poor performance need to adopt lower cutting speed and smaller cutting depth.