What factors affect the cutting speed of Automatic CNC Roll Milling Machine?

The efficient and precise features of Automatic CNC Roll Milling Machine occupy an important position in the manufacturing industry. In the milling process, cutting speed is one of the key parameters that affects the processing effect. The reasonable setting of cutting speed is related to processing efficiency, and also directly affects the surface quality of the workpiece and the service life of the tool. The main factors affecting the cutting speed of automated CNC roller milling machines will be discussed below.

1. Material properties
The type of workpiece material is an important factor affecting cutting speed. The hardness, strength and toughness of different materials vary significantly, and the suitable cutting speeds also vary.
Metal materials: such as aluminum alloy, copper, steel, etc. The cutting speed of aluminum alloy is usually higher because of its lower hardness and good cutting performance. For high-strength steel or titanium alloys, the cutting speed needs to be reduced to prevent tool wear and workpiece deformation.
Non-metallic materials: such as plastics and composites, can often use higher cutting speeds. But be aware that some plastics may melt at high temperatures, so cutting parameters need to be adjusted appropriately.

2. Tool material and geometry
The material and geometry of the tool have a direct impact on the cutting speed. Common tool materials include high-speed steel (HSS), carbide, ceramic and coated tools, etc.
Tool materials: Carbide tools generally have higher wear resistance and thermal stability, so they can work at higher cutting speeds, while high-speed steel tools are suitable for lower cutting speeds.
Tool geometry: The cutting edge angle of the tool, tool diameter and coating all affect cutting performance. For example, sharp cutting edges and appropriate cutting angles help reduce cutting resistance and allow higher cutting speeds.

3. Cutting depth and feed rate
Cutting depth and feed rate are parameters closely related to cutting speed. The greater the depth of cut, the more material the tool removes from the workpiece and the cutting resistance increases accordingly, which may limit the increase in cutting speed. At the same time, changes in feed rate will also affect the cutting speed setting.
Depth of cut: At larger depths of cut, the cutting speed usually needs to be reduced to avoid overloading the tool and deforming the workpiece.
Feed rate: Although higher feed rate can improve machining efficiency, it may also lead to lower cutting speed. A reasonable balance between feed rate and cutting speed is the key to ensuring machining results.

4. Cooling and lubrication
During milling, the use of coolant can significantly affect cutting speed. Proper cooling and lubrication can not only reduce cutting temperature and tool wear, but also improve the surface quality of the workpiece.
Coolant type: Different types of coolant (e.g., water-soluble, oil-based coolant) have different effectiveness in reducing cutting temperatures. Proper coolant can allow operation at higher cutting speeds.
Cooling method: The choice of methods such as spray cooling, liquid cooling, etc. will also affect the cutting performance, which in turn affects the setting of the cutting speed.

5. Machine tool stability and vibration
The stability and vibration of the machine tool will also affect the choice of cutting speed. Stable machine tools are better able to withstand the forces during cutting, allowing higher cutting speeds.
Machine tool rigidity: The structural design and material selection of the machine tool determine its rigidity. Machine tools with insufficient rigidity are prone to vibration during the cutting process, affecting processing accuracy and tool life.
Impact of vibration: The vibration generated during the cutting process will cause the tool to jump, thus affecting the cutting effect and surface quality. Therefore, the impact of vibration on processing needs to be considered when setting the cutting speed.