What is the purpose of a coolant in CNC cutting processes?

The purpose of coolant in CNC cutting processes is primarily to prevent overheating of the tool and workpiece. During cutting operations, friction and heat are generated, which can negatively affect both the tool's lifespan and the integrity of the workpiece. Excessive heat can lead to tool wear or failure, thermal distortion of the workpiece, and decreased accuracy in the machining process.

By applying coolant, the temperature is reduced effectively, extending tool life and maintaining the dimensional accuracy and surface quality of the machined part. While coolants can also play a role in enhancing surface finish and can provide some lubrication, the primary concern in most cutting operations is the management of heat to ensure optimal performance and prevent damage.

Understanding the function of coolant is crucial in CNC machining processes, as maintaining appropriate temperatures helps achieve better results and efficiency in manufacturing.