Apparatus for increasing wear life of ceramic tools

Details Apparatus for increasing wear life of ceramic tools Apparatus for increasing wear life of ceramic tools

B - Operations, Transporting

26

D

164/143

B26D 1/00 (2006.01)

Patent

CA 1235058

-13- ABSTRACT An apparatus and method are disclosed for reducing the oxygen concentration at the interface between a cutting tool and a relatively rotating metal workups. The apparatus comprises (a) a supporting means for holding the cutting tool in a predetermined position relative to the workups, and (b) means effective to direct a plurality of discrete flows of inert gas between the cutting tool and workups in a manner to substantially reduce the oxygen concentration in the zone to a predetermined level. The method comprises (a) directing a first stream of inert gas closely adjacent the interface, and (b) directing a second stream of inert gas to at least partially surround the first stream.

466702

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