CVD COATED CUTTING TOOL WITH 0 0 1 TEXTURED κ-Al2O3 LAYER

摘要

PROBLEM TO BE SOLVED: To provide a cutting tool with improved crater wear resistance in steel, bearing steel, and alloy steel such as stainless steel.SOLUTION: The present disclosure relates to a coated cutting tool having a substrate and a coating. The coating includes at least one layer of κ-AlOwith a thickness of 1-20 μm deposited by chemical vapor deposition (CVD). A χ-scan from -80° to 80° over the (0 0 6) reflection of the κ-AlOlayer shows the strongest peak centered around 0°, where the full width half maximum (FWHM) of the peak is less than 25°.SELECTED DRAWING: Figure 1