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US08715838B2 Surface-coated cutting tool 有权
表面切割工具

Surface-coated cutting tool
Abstract:
Wear resistance and chipping resistance are both highly established for a surface-coated cutting tool. The surface-coated cutting tool of the present invention includes a base material and a coat film formed on the base material. A first coat layer at a chamfer portion has residual stress that exhibits a minimal value at a depth A within 2 μm from the surface, and that is greater than or equal to −7 GPa and less than or equal to −1 GPa.
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