IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
US-0676394
(2007-02-19)
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등록번호 |
US-8512882
(2013-08-20)
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발명자
/ 주소 |
- Bost, John
- Fang, X. Daniel
- Wills, David J.
- Tonne, Edwin
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
2 인용 특허 :
190 |
초록
▼
Cutting tools and cutting inserts having a wear resistant coating on a substrate comprising a metal carbide particle and a binder. For certain applications, a cutting insert having a wear resistant coating comprising hafnium carbon nitride and a binder comprising ruthenium may provide a greater serv
Cutting tools and cutting inserts having a wear resistant coating on a substrate comprising a metal carbide particle and a binder. For certain applications, a cutting insert having a wear resistant coating comprising hafnium carbon nitride and a binder comprising ruthenium may provide a greater service life. The wear resistant coating comprising hafnium carbon nitride may have a thickness of from 1 to 10 microns. In another embodiment, the cutting tool comprises a cemented carbide substrate with a binder comprising at least one of iron, nickel and cobalt.
대표청구항
▼
1. A cutting tool, comprising: a substrate comprising metal carbide particles and a binder, wherein the binder comprises ruthenium; andat least one wear resistant coating comprising hafnium carbon nitride. 2. The cutting tool of claim 1, wherein the wear resistant coating comprising hafnium carbon n
1. A cutting tool, comprising: a substrate comprising metal carbide particles and a binder, wherein the binder comprises ruthenium; andat least one wear resistant coating comprising hafnium carbon nitride. 2. The cutting tool of claim 1, wherein the wear resistant coating comprising hafnium carbon nitride has a thickness from 1 to 10 microns. 3. The cutting tool of claim 1, wherein the binder further comprises at least one of iron, nickel and cobalt. 4. The cutting tool of claim 1, wherein the binder further comprises cobalt. 5. The cutting tool of claim 3 or 4, wherein the concentration of ruthenium in the binder is from 1% to 30%, by weight. 6. The cutting tool of claim 5, wherein the concentration of ruthenium in the binder is from 4% to 30%, by weight. 7. The cutting tool of claim 6, wherein the concentration of ruthenium in the binder is from 8% to 20%, by weight. 8. The cutting tool of claim 7, wherein the concentration of ruthenium in the binder is from 10% to 15%, by weight. 9. The cutting tool of claim 1, comprising at least one additional coating comprising at least one of a metal carbide, a metal nitride, a metal silicon or a metal oxide of a metal selected from groups IIIA, IVB, VB, and VIB of the periodic table, wherein the hafnium carbon nitride coating comprises at least one of a first coating on the substrate, an intermediate coating on the substrate, and a final coating on the substrate. 10. The cutting tool of claim 9, wherein the at least one additional coating is selected from titanium nitride (TiN), titanium carbonitride (TiCN), titanium carbide (TiC), titanium aluminum nitride (TiAlN), titanium aluminum nitride plus carbon (TiAlN+C), aluminum titanium nitride (AlTiN), aluminum titanium nitride plus carbon (AlTiN+C), titanium aluminum nitride plus tungsten carbide/carbon (TiAlN+WC/C), aluminum titanium nitride (AlTiN), aluminum titanium nitride plus carbon (AlTiN+C), aluminum titanium nitride plus tungsten carbide/carbon (AlTiN+WC/C), aluminum oxide (Al2O3), α-alumina oxide, titanium diboride (TiB2), tungsten carbide carbon (WC/C), chromium nitride (CrN), aluminum chromium nitride (AlCrN), zirconium nitride (ZrN), zirconium carbon nitride (ZrCN), boron nitride (BN), and boron carbon nitride (BCN). 11. The cutting tool of claim 10, wherein any of the at least one additional coating has a thickness from 2 to 6 micrometers. 12. The cutting tool of claim 1, wherein the wear resistant coating comprising hafnium carbon nitride is one of an only coating, a first coating, an intermediate coating, and a top coating. 13. The cutting tool of claim 1, wherein the metal carbide particles of the substrate comprise at least one transition metal selected from titanium, chromium, vanadium, zirconium, hafnium, tantalum, molybdenum, niobium, and tungsten. 14. The cutting tool of claim 3 or 4, wherein the binder further comprises an alloying agent selected from tungsten, titanium, tantalum, niobium, chromium, molybdenum, boron, carbon, silicon, ruthenium, rhenium, manganese, aluminum, and copper. 15. The cutting tool of claim 1, wherein the metal carbide particles of the substrate comprise tungsten carbide. 16. The cutting tool of claim 1, wherein the wear resistant coating consists essentially of hafnium carbon nitride. 17. The cutting tool of claim 16, wherein the substrate comprises 2 to 40 weight percent of the binder and 60 to 98 weight percent of the metal carbide particles, and wherein the metal carbide particles comprise tungsten carbide particles. 18. The cutting tool of claim 1, wherein the metal carbide particles comprise tungsten carbide particles having an average grain size of 0.3 to 10 μm. 19. The cutting tool of claim 1, wherein the metal carbide particles comprise tungsten carbide particles having an average grain size of 0.5 to 10 μm. 20. A method of coating a cutting tool, comprising: applying a wear resistant coating of hafnium carbon nitride on a cutting tool, wherein the substrate comprises tungsten carbide particles in a binder and the binder comprises ruthenium. 21. The method of claim 20, wherein the wear resistant coating has a thickness from 1 to 6 microns. 22. The method of claim 20, wherein the binder comprises at least one of iron, nickel and cobalt. 23. The method of claim 22, wherein the binder is cobalt. 24. The method of claim 23, wherein the concentration of ruthenium in the binder is from 1% to 30%, by weight. 25. The method of claim 24, wherein the concentration of ruthenium in the binder is from 4% to 30%, by weight. 26. The method of claim 25, wherein the concentration of ruthenium in the binder from 8% to 20%, by weight. 27. The method of claim 26, wherein the concentration of ruthenium in the binder from 10% to 15%, by weight. 28. The method of claim 20, comprising treating the cutting tool prior to coating the substrate. 29. The method of claim 28, wherein treating the cutting tool prior to coating comprises at least one of electropolishing, microblasting, wet blasting, grinding, brushing, jet abrading and compressed air blasting. 30. The method of claim 20, wherein a coating is formed on at least a portion of the substrate. 31. The method of claim 20, comprising treating the coating on the substrate by at least one of blasting, shot peening, compressed air blasting, and brushing. 32. The method of claim 20, comprising applying additional coatings on the substrate by physical vapor deposition. 33. The method of claim 20, comprising applying additional coatings on the substrate by chemical vapor deposition. 34. The method of claim 20, comprising coating the cutting insert with at least one of a metal carbide, a metal nitride, a metal silicon and a metal oxide of a metal selected from groups IIIA, IVB, VB, and VIB of the periodic table. 35. The method of claim 34, wherein the coating comprises at least one of titanium nitride (TiN), titanium carbonitride (TiCN), titanium aluminum nitride (TiAlN), titanium aluminum nitride plus carbon (TiAlN+C), aluminum titanium nitride (AlTiN), aluminum titanium nitride plus carbon (AlTiN+C), titanium aluminum nitride plus tungsten carbide/carbon (TiAlN+WC/C), aluminum titanium nitride (AlTiN), aluminum titanium nitride plus carbon (AlTiN+C), aluminum titanium nitride plus tungsten carbide/carbon (AlTiN+WC/C), aluminum oxide (Al2O3), titanium diboride (TiB2), tungsten carbide carbon (WC/C), chromium nitride (CrN), aluminum chromium nitride (AlCrN), zirconium nitride (ZrN), zirconium carbon nitride (ZrCN), boron nitride (BN), or boron carbon nitride (BCN). 36. The method of claim 34, wherein each coating has a thickness from 1 to 10 micrometers. 37. A cutting tool, comprising: a substrate comprising metal carbide particles and a binder, wherein the binder comprises ruthenium; andat least one wear resistant coating on the substrate, wherein the at least one wear resistant coating consists essentially of zirconium carbon nitride (ZrCN), or boron carbon nitride (BCN). 38. The cutting tool of claim 37, wherein the at least one wear resistant coating has a thickness from 1 to 10 microns. 39. The cutting tool of claim 37, wherein the binder further comprises at least one of iron, nickel and cobalt. 40. The cutting tool of claim 39, wherein the binder further comprises cobalt. 41. The cutting tool of claim 37, wherein the concentration of ruthenium in the binder is from 1% to 30%, by weight. 42. The cutting tool of claim 41, wherein the concentration of ruthenium in the binder is from 4% to 30%, by weight. 43. The cutting tool of claim 42, wherein the concentration of ruthenium in the binder is from 8% to 20%, by weight. 44. The cutting tool of claim 43, wherein the concentration of ruthenium in the binder is from 10% to 15%, by weight. 45. The cutting tool of claim 37, comprising at least one additional coating, wherein the at least one additional coating comprises at least one of a metal carbide, a metal nitride, a metal silicon and a metal oxide of a metal selected from groups IIIA, IVB, VB, and VIB of the periodic table; wherein the wear resistant coating consisting essentially of one of zirconium carbon nitride (ZrCN) and boron carbon nitride (BCN) comprises one or more of a first coating on the substrate, an intermediate coating on the substrate, and a final coating on the substrate. 46. The cutting tool of claim 45, wherein the at least one additional coating comprises at least one of titanium nitride (TiN), titanium carbide (TiC), titanium carbonitride (TiCN), titanium aluminum nitride (TiAlN), titanium aluminum nitride plus carbon (TiAlN+C), aluminum titanium nitride (AlTiN), aluminum titanium nitride plus carbon (AlTiN+C), titanium aluminum nitride plus tungsten carbide/carbon (TiAlN+WC/C), aluminum titanium nitride (AlTiN), aluminum titanium nitride plus carbon (AlTiN+C), aluminum titanium nitride plus tungsten carbide/carbon (AlTiN+WC/C), aluminum oxide (Al2O3), α-alumina oxide, titanium diboride (TiB2), tungsten carbide carbon (WC/C), chromium nitride (CrN), aluminum chromium nitride (AlCrN), and hafnium carbon nitride (HfCN).
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