COATED CUTTING TOOL INSERT

摘要

PROBLEM TO BE SOLVED: To provide a cutting tool insert coated by chemical vapor deposition with a TiCNlayer with low tensile stress of 10-300 MPa and an αAlOlayer with a high surface smoothness of ≤0.1 μm as measured by atomic force microscopy technique.SOLUTION: A cutting tool insert coated by chemical vapor deposition is obtained by subjecting the coating to a first intensive wet blasting operation with a slurry of F80 grits of AlOfollowed by a second wet blasting treatment with a slurry of F320 grits of AlO.