Coolant Tank Dump, Clean, and Recharge: A Step-by-Step Procedure for Deep Hole Drilling
Deep hole drilling puts more demand on coolant than any other machining process. High pressure, high flow, and continuous chip load mean coolant degrades faster. I have found that a systematic dump-clean-recharge (DCR) procedure every 6-12 months doubles coolant life and prevents most contamination problems before they start. Here is the procedure I use. When to Do a DCR I do not wait for a fixed schedule. I watch for these triggers: ...