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Success Stories by Environmental Protection Agency

Jul 30, 2011

Creare Inc.
Hanover, NH 03755

Environmental Problem - Cutting fluids decrease the temperature of both the cutting tool and the part during the machining process; the coolant fluid is sprayed into the machining zone during cutting, increasing tool life and improving the quality of the parts produced. Cutting fluids, however, are expensive, can be toxic, and produce a significant waste stream. Responsible handling of waste fluid is needed to avoid the contamination of lakes, rivers, and groundwater. Additionally, dermal exposure to these fluids and inhalation of airborne fluid particulates pose health concerns. Because of these drawbacks, there has been a recent shift toward dry cutting, but it is not an ideal solution. Dry cutting increases energy and per part costs and can require a significant upfront investment that is too high for many manufacturers.

SBIR Technology Solution - With support from EPA’s Small...

Jul 30, 2011

NanoMech, Inc.
Fayetteville, 72701 OR

Environmental Problem - Machining involves several processes that use power driven machine tools (such as lathes, milling machines, and drill presses) with a sharp cutting tool to mechanically cut metal, wood, or plastic. The temperature of both the cutting tool and the part are decreased during the machining process by the use of cutting fluids, which are expensive, can be toxic, and produce a significant waste stream. More than 100 million gallons of cutting fluid are used each year in the United States, and responsible handling of waste fluid is needed to avoid contamination of water bodies and groundwater. Coatings for cutting tools can be an effective approach to help address this problem. However, standard coatings use a multilayer configuration in which the soft phases wear out early in the machining process, leaving the hard phases exposed. Therefore,...