How to choose the spindle power and speed of the reinforced precision CNC milling machine to meet different processing requirements?

The selection of spindle power and speed of reinforced precision CNC milling machines directly affects the processing efficiency and processing quality. Choosing the right spindle power and speed is crucial for different processing requirements. It can not only improve production efficiency, but also ensure processing accuracy. According to the characteristics and processing requirements of different materials, reasonable spindle power and speed selection can effectively balance cutting force, cutting temperature and tool life, so as to obtain the best processing effect.
The selection of spindle power is usually related to the hardness and cutting conditions of the processed material. For softer metal materials, such as aluminum alloys, copper alloys, etc., a relatively small power spindle can be selected, which can not only reduce energy consumption, but also effectively avoid processing problems caused by excessive cutting. However, for materials with higher hardness, such as stainless steel, titanium alloy, tool steel, etc., the spindle power needs to be strong enough to ensure that continuous cutting force can be provided during the cutting process to avoid processing pauses or premature tool wear due to insufficient power. Generally speaking, when selecting the spindle power, the expected cutting depth and feed speed, as well as the load generated during cutting, should be taken into account.
The spindle speed directly affects the cutting speed, which is usually closely related to the tool diameter, material type, tool material and machining accuracy requirements used. For smaller diameter tools and softer materials, a higher speed can be selected, which can increase the cutting speed and improve production efficiency, while reducing the concentration of cutting force, which helps to maintain the stability of the processing. On the contrary, for larger tools or hard materials, lower speeds tend to provide a more stable cutting process, reduce tool wear and heat accumulation, and extend tool life.
The selection of cutting parameters also needs to be adjusted according to the type of processing. For example, finishing usually requires a lower feed rate and a higher spindle speed to ensure surface finish and machining accuracy. Roughing usually uses a higher feed rate and a lower speed to improve cutting efficiency and reduce vibration and tool burden during material removal. At different processing stages, adjusting the spindle power and speed according to actual needs helps to balance processing quality and efficiency.
The reasonable selection of spindle power and speed is also closely related to the use of cutting fluid. For high cutting force processing, suitable cutting fluid can effectively reduce temperature, reduce friction, extend tool life, and improve processing accuracy. When selecting the spindle power and speed, the reasonable use of cutting fluid can effectively improve the processing effect and reduce thermal deformation and tool wear.