According to Robert Gazo, Purdue University researcher has discovered a way to save energy and money by cryogenically freezing tools for 24 hrs before use. Gazo along with other researchers has tried approaches to cool the tools, which include blowing refrigerated air onto the tools and cryogenically freezing the tools, as well as a combination of both. Professor Robert Gazo and other researcher tem has concluded that freezing tools for 24 hours before use allowed them to stay sharp longer, reduce repair and replacement costs.
According to John Koucky, president of 300 Below, Inc, the process changes the microstructure of the tools by lowering the temperature to 300 degrees below zero, then bringing back to ambient temperature.
Source: http://www.purdueexponent.org/index.php/module/Section/section_id/11?module=article&story_id=17068
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