Body with a metal based nitride layer and a method for coating the body
AssigneeSeco Tools AB
InventorsJon Andersson, Rickard Forsen, Naureen Ghafoor, Mats Johansson Jöessar, Magnus Oden
Life of this patent
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Abstract
A hard and wear resistant coating for a body includes at least one metal based nitride layer having improved high temperature performance. The layer is (Zr1-x-zSixMez)Ny with 0<x<0.30, 0.90<y<1.20, 0≦z<0.25, and Me is one or more of the elements Y, Ti, Nb, Ta, Cr, Mo, W and Al, comprised of a single cubic phase, a single hexagonal phase or a mixture thereof, with a cubic phase of a sodium chloride structure and a thickness between 0.5 μm and 15 μm. The layer is deposited using cathodic arc evaporation and is useful for metal cutting applications generating high temperatures.
Claims26
A hard and wear resistant coating for a body, the coating comprising:
- at least one metal based nitride layer deposited on the body by cathodic arc evaporation, wherein said at least one metal based nitride layer is (Zr1−x−zSixMez)Ny with 0<x<0.15, 0.90<y <1.10, 0≦z<0.25, and Me is one or more of the elements Y, Ti, Nb, Ta, Cr, Mo and W, the at least one metal based nitride layer being selected from the group of a cubic phase of a sodium chloride structure, a single cubic phase, a single hexagonal phase, and a mixture thereof, the at least one metal based nitride layer having a thickness between 0.5 μm and 15 μm, and TC(200)>1.5 and simultaneously TC(111), TC(220) and TC(311) all being <1.5 wherein
- TC(hkl) is determined from XRD data as follows:
- TC
- meas
-
- (
- hkl
- )
- =
- I
- meas
-
- (
- hkl
- )
- I
- 0
-
- (
- hkl
- )
- [
- 1
- n
-
- ∑
- n
- =
- 1
- n
-
- I
- meas
-
- (
- hkl
- )
- I
- 0
-
- (
- hkl
- )
- ]
- -
- 1
- wherein
- Imeas(hkl) is a measured intensity of the (hkl) reflection and Io(hkl) a standard intensity according to JCPDS card no. 035-0753, and n=4 is the number of (hkl) reflections used in the calculations.
A method of using a cutting tool insert for machining by chip removal, comprising the steps of:
- providing a cutting tool insert, the insert including a body of a hard alloy selected from the group of cemented carbide, cermet, ceramics, cubic boron nitride based material or high speed steel and depositing at least one metal based nitride layer onto the cutting tool insert by cathodic arc evaporation, wherein said at least one metal based nitride layer is (Zr1−x−zSixMez)Ny with 0<x<0.15, 0.90<y<1.10, 0≦z<0.25, and Me is one or more of the elements Y, Ti, Nb, Ta, Cr, Mo and W, the at least one metal based nitride layer being selected from the group of a cubic phase of a sodium chloride structure, a single cubic phase, a single hexagonal phase, and a mixture thereof, the at least one metal based nitride layer having a thickness between 0.5 μm and 15 μm, and TC(200)>1.5 and simultaneously TC(111), TC(220) and TC(311) all being<1.5 wherein
- TC(hkl) is determined from XRD data as follows:
- TC
- meas
-
- (
- hkl
- )
- =
- I
- meas
-
- (
- hkl
- )
- I
- 0
-
- (
- hkl
- )
- [
- 1
- n
-
- ∑
- n
- =
- 1
- n
-
- I
- meas
-
- (
- hkl
- )
- I
- 0
-
- (
- hkl
- )
- ]
- -
- 1
- wherein
- Imeas(hkl) is a measured intensity of the (hkl) reflection and Io(hkl) a standard intensity according to JCPDS card no. 035-0753, and n=4 is the number of (hkl) reflections used in the calculations;
- and
- specifically generating high temperatures, at cutting speeds of 50-400 m/min, with an average feed, per tooth in the case of milling, of 0.08-0.5 mm, depending on cutting speed and insert geometry.
A cutting tool insert comprising:
- a body;
- and
- a hard and wear resistant coating deposited on the body by cathodic arc evaporation , the coating including at least one metal based nitride layer, wherein said at least one metal based nitride layer is (Zr1−x−zSixMez)Ny with 0<x<0.15, 0.90<y<1.10, 0≦z<0.25, and Me is one or more of the elements Y, Ti, Nb, Ta, Cr, Mo and W, the at least one metal based nitride layer being selected from the group of a cubic phase of a sodium chloride structure, a single cubic phase, a single hexagonal phase, and a mixture thereof, the at least one metal based nitride layer having a thickness between 0.5 μm and 15 μm, and TC(200)>1.5 and simultaneously TC(111), TC(220) and TC(311) all being<1.5 wherein
- TC(hkl) is determined from XRD data as follows:
- TC
- meas
-
- (
- hkl
- )
- =
- I
- meas
-
- (
- hkl
- )
- I
- 0
-
- (
- hkl
- )
- [
- 1
- n
-
- ∑
- n
- =
- 1
- n
-
- I
- meas
-
- (
- hkl
- )
- I
- 0
-
- (
- hkl
- )
- ]
- -
- 1
- wherein
- Imeas(hkl) is a measured intensity of the (hkl) reflection and Io(hkl) a standard intensity according to JCPDS card no. 035-0753, and n=4 is the number of (hkl) reflections used in the calculations.
Dependencies are inferred from the claim text.