Why is proper lubrication essential in CNC machining?

Proper lubrication is essential in CNC machining primarily to minimize friction and wear on moving parts. In any machining operation, components such as spindles, bearings, and guideways move at high speeds and under considerable loads. Without adequate lubrication, these parts would experience increased friction, which can lead to overheating and premature wear.

When lubricants are applied appropriately, they form a protective film between the moving surfaces, which reduces contact friction. This not only extends the life of the machine components but also maintains precision, as wear can lead to inaccuracies in machining processes. Additionally, proper lubrication helps in dissipating heat generated during operation, further protecting the integrity of the machine parts.

While other choices touch on important aspects of CNC machining, they do not address the primary function of lubrication as comprehensively as minimizing friction and wear does.