Coolant Contamination in Deep Hole Drilling: Detection, Effects, and Prevention
What I Mean by Coolant Contamination Coolant in deep hole drilling does more than cool. It flushes chips, lubricates the cut zone, and protects the machine from corrosion. When contamination sets in, every one of those jobs suffers. I have walked onto floors where operators blamed the tool, the feed rate, or the material — only to find the real culprit was degraded coolant. Here is what I look for. ...