Coolant Leak Detection and Repair in Deep Hole Drilling Machines
Problem Description A coolant leak at 80 bar doesn’t stay small for long. I’ve seen a pinhole leak in a high-pressure hose grow to a 5 mm tear within 30 minutes of operation. The leak drops system pressure by 20-30 bar, chip evacuation stops, and the drill starts rubbing. In deep hole drilling, coolant pressure is everything — a leak that drops pressure by even 10 bar can turn a good bore into a scrap part. ...