Chromium - base alloys and cobalt - base alloys are of good properties

high hardness

and they are difficult in processing. More ideal parameters are obtained through the experimental research on processing chromium - base alloys by means of the ceramic cutter LT55 and on processing cobalt - base alloys by means of the ceramic cutter SG4. And through increasing the negative front angle of cutters

improving their stress condition subjected to

decreasing cutting thickness

lowering cutting impacting loading

the use life of the cutters is lengthened

thus the problems of processing some parts are solved by means of the ceramic tool

such as cutting the parts which are of high hardness and impacting the parts which are of large loading.