Cooling with vortex tubes by ProQuest

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High-temperature corrosion has been found to be a major contributor to the wear of wood cutting tools. The heat and high temperatures during wood machining may be generated from several sources. These heat sources include friction, the distortion and/or fracture of chemical bonds, and the electrical discharge among the chip, workpiece and tool surfaces. Liquid coolants and lubricants have been applied to metal, plastics and green wood machining to reduce cutting temperatures or their effects on tool wear. Cooling tools with compressed and/or refrigerated air may reduce tool wear. A concern of tool wear testing is obtaining meaningful results from minimum testing. Statistical analysis showed that cooled air temperature significantly reduced total (wear void + wear scar) tool wear. Accurate tool histories and controlled tests could show that cooling tools with refrigerated air could be widely applied throughout the woodworking industry.

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