Fine Ideas

Author Thomas Walz
May 01, 2002 - 12:00pm

Ultrafiltration of coolant lengthens tool and machine life.

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Related Glossary Terms

  • coolant


    Fluid that reduces temperature buildup at the tool/workpiece interface during machining. Normally takes the form of a liquid such as soluble or chemical mixtures (semisynthetic, synthetic) but can be pressurized air or other gas. Because of water’s ability to absorb great quantities of heat, it is widely used as a coolant and vehicle for various cutting compounds, with the water-to-compound ratio varying with the machining task. See cutting fluid; semisynthetic cutting fluid; soluble-oil cutting fluid; synthetic cutting fluid.


Owner and President

Thomas Walz is owner and president of Northwest Research Institute Inc. and Carbide Processors Inc., Tacoma, Washington. For more information, call 800-346-8274 or log onto