APPARATUS AND METHOD FOR PROVIDING A TEMPERATURE-CONTROLLED GAS

摘要

A method and apparatus for directing gas at cryogenic temperatures onto at least some of the contact surfaces of machinery used in a cutting process. The gas is supplied at a relatively high flow rate (preferably exceeding 1000 SCFH) and at cryogenic temperatures (e.g., below -70 degrees C). The temperature at which the coolant gas is supplied is preferably maintained within ±5 degrees F (±3 degrees C).