This thermal stability ensures that the microstructure of the steel remains intact, preserving the sharpness and strength of the cutting edge throughout the operation. How Cutting Oil Works as a Coolant Cutting oil functions as an effective coolant by absorbing the heat generated during the drilling process and transferring it away from the tool.
Applying Cutting Oil Correctly for Optimal Metal Drilling Performance
Best Practices for Application. The oil creates a thin film that lubricates the interface, minimizing the direct contact between the flutes and the hole wall.
For ferrous materials like steel and stainless steel, a heavy-duty oil with extreme pressure (EP) additives is necessary to handle the high stress. Furthermore, metal drilling produces chips or swarf, which can become lodged in the flutes of the drill.
Applying Cutting Oil Correctly for Optimal Lubrication and Chip Removal
Cutting oil helps to flush these chips away from the cutting zone, preventing clogging and ensuring that the drill exits the material cleanly. Modern cutting oils contain specific additives that prevent this welding process from occurring.
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