Patents by Inventor Volkmar Sottke
Volkmar Sottke has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9994717Abstract: A CVD-coated article has a substrate with a substrate surface and a CVD coating scheme on the substrate surface. The coating scheme includes a coating layer of Ti1-xMex nitride wherein Me is selected from the group of zirconium or hafnium or a mixture of zirconium and hafnium, and x equals between about 0.1 and about 0.9. The coating layer of Ti1-xMex nitride has a microhardness equal to between about 2300 HV0.05 and about 2600 HV0.05, a face centered cubic crystal structure, and a lattice constant equal to between about 0.427 nanometers and about 0.453 nanometers.Type: GrantFiled: April 13, 2015Date of Patent: June 12, 2018Assignee: KENNAMETAL INC.Inventors: Volkmar Sottke, Hartmut Westphal, Karl H. Wendt, Peter R. Leicht, Rodrigo A. Cooper, Yixiong Liu
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Publication number: 20160298233Abstract: A CVD-coated article has a substrate with a substrate surface and a CVD coating scheme on the substrate surface. The coating scheme includes a coating layer of Ti1-xMex nitride wherein Me is selected from the group of zirconium or hafnium or a mixture of zirconium and hafnium, and x equals between about 0.1 and about 0.9. The coating layer of Ti1-xMex nitride has a microhardness equal to between about 2300 HV0.05 and about 2600 HV0.05, a face centered cubic crystal structure, and a lattice constant equal to between about 0.427 nanometers and about 0.453 nanometers.Type: ApplicationFiled: April 13, 2015Publication date: October 13, 2016Inventors: Volkmar Sottke, Hartmut Westphal, Karl H. Wendt, Peter R. Leicht, Rodrigo A. Cooper, Yixiong Liu
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Patent number: 9427808Abstract: In one aspect, cutting tools are described having coatings adhered thereto which, in some embodiments, demonstrate desirable wear resistance and increased cutting lifetimes. A coated cutting tool described herein comprises a substrate and a coating adhered to the substrate, the coating including a refractory layer comprising plurality of sublayer groups, a sublayer group comprising an aluminum oxynitride (AlON) sublayer or a composite AlON sublayer and an alumina (Al2O3) sublayer or composite alumina sublayer.Type: GrantFiled: August 30, 2013Date of Patent: August 30, 2016Assignee: KENNAMETAL INC.Inventors: Volkmar Sottke, Karl Heinz Wendt, Hartmut Westphal, Peter Leicht, Yixiong Liu
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Patent number: 9181620Abstract: In one aspect, cutting tools are described having coatings adhered thereto which, in some embodiments, can demonstrate desirable wear resistance and increased cutting lifetimes. A coated cutting tool, in some embodiments, comprises a substrate and a coating adhered to the substrate, the coating comprising at least one Zr doped layer deposited by chemical vapor deposition comprising ZrAl2O3.Type: GrantFiled: March 20, 2014Date of Patent: November 10, 2015Assignee: KENNAMETAL INC.Inventors: Karl Heinz Wendt, Volkmar Sottke, Peter Rudolf Leicht, Yixiong Liu, Mark S. Greenfield, Hartmut Westphal
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Patent number: 9138864Abstract: In one aspect, coated cutting tools are described herein. A coated cutting tool described herein comprises a substrate and a coating adhered to the substrate, the coating comprising at least one composite layer deposited by chemical vapor deposition, the composite layer comprising an aluminum oxynitride phase, a metal oxide phase including zirconium oxide, a zirconium sulfur nitride phase and a metal oxynitride phase in addition to the aluminum oxynitride phase, the metal oxynitride phase comprising zirconium oxynitride.Type: GrantFiled: January 24, 2014Date of Patent: September 22, 2015Assignee: KENNAMETAL INC.Inventors: Karl Heinz Wendt, Volkmar Sottke, Rodrigo Alejandro Cooper, Peter Leicht, Yixiong Liu
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Patent number: 9017809Abstract: In one aspect, cutting tools are described having coatings adhered thereto. A coated cutting tool, in some embodiments, comprises a substrate and a coating adhered to the substrate, the coating comprising at least one composite layer deposited by chemical vapor deposition comprising an aluminum oxynitride phase and a metal oxide phase, the metal oxide phase including at least one oxide of a metallic element selected from Group IVB of the Periodic Table.Type: GrantFiled: January 25, 2013Date of Patent: April 28, 2015Assignee: Kennametal Inc.Inventors: Volkmar Sottke, Doris Lenk, Hartmut Westphal, Hendrikus Van Den Berg, Peter Leicht, Mark Greenfield, Yixiong Liu
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Publication number: 20150064431Abstract: In one aspect, cutting tools are described having coatings adhered thereto which, in some embodiments, demonstrate desirable wear resistance and increased cutting lifetimes. A coated cutting tool described herein comprises a substrate and a coating adhered to the substrate, the coating including a refractory layer comprising plurality of sublayer groups, a sublayer group comprising an aluminum oxynitride (AlON) sublayer or a composite AlON sublayer and an alumina (Al2O3) sublayer or composite alumina sublayer.Type: ApplicationFiled: August 30, 2013Publication date: March 5, 2015Applicant: Kennametal Inc.Inventors: Volkmar Sottke, Karl Heinz Wendt, Hartmut Westphal, Peter Leicht, Yixiong Liu
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Publication number: 20140287229Abstract: In one aspect, cutting tools are described having coatings adhered thereto which, in some embodiments, can demonstrate desirable wear resistance and increased cutting lifetimes. A coated cutting tool, in some embodiments, comprises a substrate and a coating adhered to the substrate, the coating comprising at least one Zr doped layer deposited by chemical vapor deposition comprising ZrAl2O3.Type: ApplicationFiled: March 20, 2014Publication date: September 25, 2014Applicant: Kennametal Inc.Inventors: Karl Heinz Wendt, Volkmar Sottke, Peter Rudolf Leicht, Yixiong Liu, Mark S. Greenfield, Hartmut Westphal
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Patent number: 8828492Abstract: A method for making a coated article wherein the method includes the following steps: providing a substrate; and depositing an aluminum oxynitride coating layer from a gaseous mixture. The gaseous mixture contains the following components: 30.0-65.0 volume percent nitrogen, 0.7-1.3 volume percent aluminum tri-chloride; 1.0-2.0 volume percent ammonia, 0.1-1.5 carbon dioxide, 1.5-4.5 volume percent hydrogen chloride, optional components of carbon monoxide and/or argon, and hydrogen as the balance.Type: GrantFiled: June 3, 2013Date of Patent: September 9, 2014Assignee: Kennametal Inc.Inventors: Volkmar Sottke, Hartmut Westphal, Hendrikus Van Den Berg, Zhigang Ban, Yixiong Liu, Mark S. Greenfield
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Publication number: 20140208662Abstract: In one aspect, coated cutting tools are described herein. A coated cutting tool described herein comprises a substrate and a coating adhered to the substrate, the coating comprising at least one composite layer deposited by chemical vapor deposition, the composite layer comprising an aluminum oxynitride phase, a metal oxide phase including zirconium oxide, a zirconium sulfur nitride phase and a metal oxynitride phase in addition to the aluminum oxynitride phase, the metal oxynitride phase comprising zirconium oxynitride.Type: ApplicationFiled: January 24, 2014Publication date: July 31, 2014Applicant: Kennametal, Inc.Inventors: Karl Heinz Wendt, Volkmar Sottke, Rodrigo Alejandro Cooper, Peter Leicht, Yixiong Liu
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Publication number: 20140208659Abstract: In one aspect, cutting tools are described having coatings adhered thereto. A coated cutting tool, in some embodiments, comprises a substrate and a coating adhered to the substrate, the coating comprising at least one composite layer deposited by chemical vapor deposition comprising an aluminum oxynitride phase and a metal oxide phase, the metal oxide phase including at least one oxide of a metallic element selected from Group IVB of the Periodic Table.Type: ApplicationFiled: January 25, 2013Publication date: July 31, 2014Applicant: Kennametal Inc.Inventors: Volkmar Sottke, Doris Lenk, Hartmut Westphal, Hendrikus Van Den Berg, Peter Leicht, Mark Greenfield, Yixiong Liu
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Patent number: 8668982Abstract: A coated cutting insert for removing material from a workpiece that includes a substrate is disclosed. A wear-resistant coating on the substrate that includes an alumina layer and a Zr- or Hf-carbonitride outer layer deposited on the alumina layer. The Zr- or Hf-carbonitride outer layer is subjected to a post-coat wet blasting treatment. The wet blasting changes the stress condition of the exposed alumina coating layer from an initial tensile stress condition to a compressive stress condition.Type: GrantFiled: November 18, 2011Date of Patent: March 11, 2014Assignee: Kennametal Inc.Inventors: Peter Leicht, Mark Greenfield, Volkmar Sottke, Zhigang Ban, Hartmut Westphal, Yixiong Liu, Michael Frank Beblo
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Publication number: 20130302521Abstract: A coated article such as a coated cutting tool or coated wear part, which includes a substrate and a coating scheme on the substrate. The coating scheme has a titanium-containing coating layer, and an aluminum oxynitride coating layer on the titanium-containing coating layer. The aluminum oxynitride includes a mixture of phases having a hexagonal aluminum nitride type structure (space group: P63mc), a cubic aluminum nitride type structure (space group: Fm-3m), and optionally amorphous structure. The aluminum oxynitride coating layer has a composition of aluminum in an amount between about 20 atomic percent and about 50 atomic percent, nitrogen in an amount between about 40 atomic percent and about 70 atomic percent, and oxygen in an amount between about 1 atomic percent and about 20 atomic percent.Type: ApplicationFiled: June 3, 2013Publication date: November 14, 2013Applicant: Kennametal Inc.Inventors: Volkmar Sottke, Hartmut Westphal, Hendrikus Van Den Berg, Zhigang Ban, Yixiong Liu, Mark S. Greenfield
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Patent number: 8574728Abstract: A coated article such as a coated cutting tool or coated wear part, which includes a substrate and a coating scheme on the substrate. The coating scheme has a titanium-containing coating layer, and an aluminum oxynitride coating layer on the titanium-containing coating layer. The aluminum oxynitride includes a mixture of phases having a hexagonal aluminum nitride type structure (space group: P63mc), a cubic aluminum nitride type structure (space group: Fm-3m), and optionally amorphous structure. The aluminum oxynitride coating layer has a composition of aluminum in an amount between about 20 atomic percent and about 50 atomic percent, nitrogen in an amount between about 40 atomic percent and about 70 atomic percent, and oxygen in an amount between about 1 atomic percent and about 20 atomic percent.Type: GrantFiled: March 15, 2011Date of Patent: November 5, 2013Assignee: Kennametal Inc.Inventors: Volkmar Sottke, Hartmut Westphal, Hendrkus Van Den Berg, Zhigang Ban, Yixiong Liu, Mark S. Greenfield
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Patent number: 8394513Abstract: The invention relates to a body which is coated with hard material and has a plurality of layers applied by means of CVD, wherein the outer layer comprises Ti1-xAlxN, Ti1-xAlxC and/or Ti1-xAlxCN where 0.65?x?0.9, preferably 0.7?x?0.9, and this outer layer has compressive stresses in the range from 100 to 1100 MPa, preferably from 400 to 800 MPa, and a TiCN or Al2O3 layer is arranged under this outer layer.Type: GrantFiled: January 20, 2009Date of Patent: March 12, 2013Assignee: Kennametal Inc.Inventors: Hendrikus Van Den Berg, Hartmut Westphal, Volkmar Sottke
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Patent number: 8389134Abstract: The invention relates to a body which is coated with hard material and has a plurality of layers applied by means of CVD, in which an Al2O3 layer is arranged as outer layer on a Ti1-xAlxN layer and/or Ti1-xAlxC layer and/or Ti1-xAlxCN layer.Type: GrantFiled: January 20, 2009Date of Patent: March 5, 2013Assignee: Kennametal Inc.Inventors: Hendrikus Van Den Berg, Hartmut Westphal, Volkmar Sottke
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Patent number: 8323783Abstract: A coated cutting insert for removing material from a workpiece that includes a substrate is disclosed. A wear-resistant coating on the substrate that includes an ?-alumina layer and a Zr— or Hf— carbonitride outer layer deposited on the ?-alumina layer. The Zr— or Hf— carbonitride outer layer is subjected to a post-coat wet blasting treatment. The wet blasting changes the stress condition of the exposed alumina coating layer from an initial tensile stress condition to a compressive stress condition.Type: GrantFiled: November 10, 2009Date of Patent: December 4, 2012Assignee: Kennametal Inc.Inventors: Volkmar Sottke, Zhigang Ban, Hartmut Westphal, Yixiong Liu, Michael Frank Beblo
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Publication number: 20120237794Abstract: A coated article such as a coated cutting tool or coated wear part, which includes a substrate and a coating scheme on the substrate. The coating scheme has a titanium-containing coating layer, and an aluminum oxynitride coating layer on the titanium-containing coating layer. The aluminum oxynitride includes a mixture of phases having a hexagonal aluminum nitride type structure (space group: P63mc), a cubic aluminum nitride type structure (space group: Fm-3m), and optionally amorphous structure. The aluminum oxynitride coating layer has a composition of aluminum in an amount between about 20 atomic percent and about 50 atomic percent, nitrogen in an amount between about 40 atomic percent and about 70 atomic percent, and oxygen in an amount between about 1 atomic percent and about 20 atomic percent.Type: ApplicationFiled: March 15, 2011Publication date: September 20, 2012Applicant: Kennametal Inc.Inventors: Volkmar Sottke, Hartmut Westphal, Hendrikus Van Den Berg, Zhigang Ban, Yixiong Liu, Mark S. Greenfield
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Publication number: 20120128955Abstract: A coated cutting insert for removing material from a workpiece that includes a substrate is disclosed. A wear-resistant coating on the substrate that includes an alumina layer and a Zr- or Hf-carbonitride outer layer deposited on the alumina layer. The Zr- or Hf-carbonitride outer layer is subjected to a post-coat wet blasting treatment. The wet blasting changes the stress condition of the exposed alumina coating layer from an initial tensile stress condition to a compressive stress condition.Type: ApplicationFiled: November 18, 2011Publication date: May 24, 2012Applicant: Kennametal Inc.Inventors: Peter Leicht, Mark Greenfield, Volkmar Sottke, Zhigang Ban, Hartmut Westphal, Yixiong Liu, Michael Frank Beblo
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Patent number: 8012535Abstract: The invention relates to a method for producing a coated substrate body by chemical vapor deposition at least on one layer made of a carbonitride of a metal of IVa-Vla-groups of the periodic table, wherein a monocyclic hydrocarbon is used in the gas atmosphere during the deposition, in addition to a nitrile. According to the invention, the thus produced coated substrate body has a high degree of hardness and is used, preferably, in cutting operations where the cutting speeds are ?250 m/min.Type: GrantFiled: October 7, 2006Date of Patent: September 6, 2011Assignee: Kennametal Widia Produktions GmbH & Co KGInventors: Volkmar Sottke, Doris Lenk, Hartmut Westphal, Hendrikus Van Den Berg