초록 ▼

A surface-coated blade member for cutting tools comprises a metal substrate of a super hard alloy and a coating on at least one surface of said substrate, said coating being composed of a layer of vapor deposited titanium on the surface of said metal substrate and at least one layer of vapor deposit

A surface-coated blade member for cutting tools comprises a metal substrate of a super hard alloy and a coating on at least one surface of said substrate, said coating being composed of a layer of vapor deposited titanium on the surface of said metal substrate and at least one layer of vapor deposited titanium compound on said layer of titanium, and said layer of titanium compound being selected from the group consisting of titanium carbide, titanium nitride, titanium carbo-nitride, titanium oxy-carbide and titanium oxy-carbo-nitride, said layer of titanium being no larger than 2 mm

대표청구항 ▼

In a surface-coated blade member for cutting tools which comprises: a substrate, and a coating on at least one surface of said substrate, said coating being composed of (1) a layer of vapor deposited titanium metal on the surface of said substrate, and (2) at least one layer of vapor deposited titan

In a surface-coated blade member for cutting tools which comprises: a substrate, and a coating on at least one surface of said substrate, said coating being composed of (1) a layer of vapor deposited titanium metal on the surface of said substrate, and (2) at least one layer of vapor deposited titanium compound on said layer of titanium metal, said layer of titanium compound being selected from the group consisting of titanium carbide, titanium nitride, titanium carbo-nitride, titanium oxy-carbide and titanium oxy-carbo-nitride, said layer of titanium metal being no larger than 2 m0.5 to 10 m2 to 30% by weight of at least one metal selected from the iron family, and a major proportion of at least one compound selected from the group consisting of carbides, nitrides and carbo-nitrides of metals in Groups IVA, VA and VIA of the Periodic Table said surface-coated blade member produced by the process comprising the steps of: (a) placing a cemented carbide substrate in a vacuum chamber; (b) vapor depositing a layer of titanium metal no larger than 2 m0.5 to 10 m700°C. to 800°C. In a process for producing a surface-coated blade member for cutting tools, which process comprises the steps of: (a) placing a substrate in a vacuum chamber; (b) vapor depositing no larger than 0.9 m0.5 to 10 m1) said substrate is a cemented carbide containing 2 to 30% by weight of at least one metal selected from the iron family, and a major proportion of at least one compound selected from the group consisting of carbides, nitrides and carbo-nitrides of metals in Groups IVA, VA and VIA of the Periodic Table, and wherein (2) said substrate is maintained at temperatures between about 700°C. and 800°C. during the vapor deposition.