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US 7,414,015 B2Granted
Metal working lubricant formulations based on supercritical carbon dioxide
AssigneeThe Regents of the University of Michigan
InventorsSteven J. Skerlos, Kim F. Hayes, Andres F. Clarens
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Abstract
A method for lubricating a metal workpiece during a metalworking process includes delivering supercritical carbon dioxide to the workpiece during the metalworking process. The supercritical carbon dioxide acts as a lubricant, coolant, chip evacuator, and/or carrier for another lubricant or corrosion inhibitor.
Claims11
A method for lubricating a metal workpiece for a metalworking process, the method comprising:
- delivering supercritical carbon dioxide to a nozzle, the supercritical carbon dioxide being non-aqueous;
- and
- spraying rapidly expanding carbon dioxide from the nozzle on to the metal workpiece for the metalworking process.
Dependencies are inferred from the claim text.