Patents by Inventor Hendrikus Van Den Berg
Hendrikus Van Den Berg 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: 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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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: 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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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: 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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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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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
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Publication number: 20110150692Abstract: A cemented carbide body is 1-30% by mass of binder consisting of Co, Co/Ni, Co/Fe, Co/Ni/Fe or Ni/Fe and a hard material having a hexagonal WC phase and having a face-centered cubic phase of the form (M1, M2, M3)C or (M1, M2, M3)(C, N) or (M1, M2, M3)(O, C, N) where M1=Ti and/or Zr and M2=W and M3 optionally means none or one or a plurality of the elements Ta, Nb, Hf, Cr, Mo or V, wherein the proportion of the face-centered cubic phase based on the total mass is 2% to 97%, preferably 5 to 12% by mass, and the microstructure of the hexagonal phase and of the face-centered cubic phase has a mean grain size of between 0.2 ?m and 1 ?m, preferably ?0.9 ?m, and the mean grain sizes of the hexagonal phase and of the face-centered cubic phase differ at most by 30%.Type: ApplicationFiled: July 14, 2009Publication date: June 23, 2011Inventors: Klaus Rödiger, Hendrikus Van Den Berg, Walter Lengauer, Klaus Dreyer, Dominic Janisch
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Publication number: 20110003126Abstract: 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: ApplicationFiled: January 20, 2009Publication date: January 6, 2011Inventors: Hendrikus Van Den Berg, Hartmut Westphal, Volkmar Sottke
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Publication number: 20100323176Abstract: 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: ApplicationFiled: January 20, 2009Publication date: December 23, 2010Inventors: Hendrikus Van Den Berg, Hartmut Westphal, Volkmar Sottke
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Publication number: 20100151260Abstract: The invention relates to a method of coating a cemented carbide or cermet substrate body by means of PVD, in which the fully sintered substrate body is subjected without further intermediate treatment before PVD coating to a blasting treatment using a particulate blasting agent until the zone close to the surface of the substrate body has a residual stress which is at least essentially of the same magnitude as the residual stress present in the single or first applied PVD layer. The invention further relates to such a coated cemented carbide or cermet body, in particular in the form of a cutting tool.Type: ApplicationFiled: November 7, 2006Publication date: June 17, 2010Inventors: Hartmut Westphal, Hendrikus Van Den Berg
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Patent number: 7431998Abstract: The invention relates to a tool, especially a cutting tool, comprising a substrate member onto which at least one layer is deposited by means of CVD, and a method for the chemical vapor deposition of a two-phase layer on a sintered part. According to the invention, the single deposited layer or at least one of the layers is provided with a TiCN phase, TiOCN phase, TiOC phase, or TiC phase and an additional phase consisting of ZrO2 and/or HfO2. CH3CN, C5H5N, or C6H6 is used in the gas atmosphere for producing such a layer in addition to TiCl4, HfCl4, and/or ZrCl4 and CO2, the remainder being composed of H2 and/or Ar.Type: GrantFiled: April 23, 2004Date of Patent: October 7, 2008Assignee: Kennametal Widia Produktions GmbH & Co. KGInventors: Volkmar Sottke, Hartmut Westphal, Hendrikus Van Den Berg
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Patent number: 7326461Abstract: A composite material has a base substrate body with first and second coatings. Each coating is formed by a multiphase layer of titanium oxide and at least two oxides from the group of aluminum, zirconium, and hafnium oxide and a second single-phase layer on the first layer consisting of only one oxide of aluminum, zirconium, and hafnium.Type: GrantFiled: September 26, 2003Date of Patent: February 5, 2008Assignee: Kennametal Widia GmbH & Co. KGInventors: Volkmar Sottke, Hartmut Westphal, Hendrikus Van Den Berg
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Publication number: 20060257689Abstract: The invention relates to a tool, especially a cutting tool, comprising a substrate member onto which at least one layer is deposited by means of CVD, and a method for the chemical vapor deposition of a two-phase layer on a sintered part. According to the invention, the single deposited layer or at least one of the layers is provided with a TiCN phase. TiOCN phase, TiOC phase, or TiC phase and an additional phase consisting of ZrO2 and/or HfO2. CH3CN, C5H5N, or C6H6 is used in the gas atmosphere for producing such a layer in addition to TiCl4, HfCl4, and/or ZrCl4 and CO2. the remainder being composed of H2 and/or Ar.Type: ApplicationFiled: April 23, 2004Publication date: November 16, 2006Inventors: Volkmar Sottke, Hartmut Westphal, Hendrikus Van Den Berg
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Publication number: 20050260432Abstract: The invention relates to a composite material consisting of a base body with a multilayered coating, containing at least one mulitphase layer of aluminum oxide, zirconium and/or hafnium and titanium and a single-phase layer made of AI2O3, ZrO2 and/or HfO2.Type: ApplicationFiled: September 26, 2003Publication date: November 24, 2005Inventors: Volkmar Sottke, Hartmut Westphal, Hendrikus Van Den Berg
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Publication number: 20030108752Abstract: The invention relates to a method for producing a wearing protection layer according to a CVD method. Said protection layer consists of a plurality of thin individual layers having a layer thickness of 1 to 100 nm respectively. The respective individual layers are successively deposited on a substrate body. The invention also relates to a correspondingly coated substrate body. According to the invention, the CVD method which is activated by means of a glow discharge plasma is carried out under a pressure of 50 Pa to 1,000 Pa and at a temperature of not more than 750 ° C.Type: ApplicationFiled: October 7, 2002Publication date: June 12, 2003Inventors: Udo Knig, Ralf Tabersky, Hendrikus Van Den Berg
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Patent number: 6528171Abstract: The invention relates to a tool, especially a cutting insert for cutting metallic materials, which consist of a hard metal, cermet ceramics or steel base, especially of a high speed steel base, and at least one layer deposited thereon. The single layer, or in the case of several layers the outer layer or the layer underneath the outer layer, contains molybdenum sulfide. The aim of the invention is to improve the resistance to wear of the friction-reducing, molybdenum sulfide containing layer even at high pressures. To this end, the molybdenum sulfide containing layer consists of an alternating sequence of two layer that are different from one another. The first layer contains 51 to 100% by weight of metallic molybdenum and the second layer contains 21 to 100% by weight of MoS2 which substantially consists of hexagonal crystals that are at least substantially oriented in a plane parallel to the tool surface.Type: GrantFiled: July 25, 2001Date of Patent: March 4, 2003Assignee: Widia GmbHInventors: Ingolf Endler, Albrecht Leonhardt, Udo König, Hendrikus van den Berg, Volkmar Sottke
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Patent number: 6350510Abstract: The invention pertains to a processing insert comprised of a body with a hard metal or ceramic substrate and with a multilayer coating and the manufacture of same. In order to have a highly fracture-tough insert with a relatively thick coating, it is suggested that an external layer (protective layer) be applied according to the CVD process, said layer being either a monophase or multiphase layer of Zr-based or Hf-based carbide nitride or carbonitride, and presenting internal compressive stresses. The layer(s) underlying the external layer, also applied according to the CVD process, also present(s), without any exception, internal compressive stresses, while at least one of them, maybe the only one laying under the protective layer is made of TiN, TiC and/or TiCN. The coating is applied according to a continuous CVD process at temperatures of 900° C. to 1100° C. and involves a specific modification of the gas compounds.Type: GrantFiled: November 1, 1999Date of Patent: February 26, 2002Assignee: Widia GmbHInventors: Udo König, Hendrikus Van Den Berg, Hartmut Westphal, Volkmar Sottke
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Patent number: 6224968Abstract: Disclosed are a composite body and the production and the use thereof. It consists of a substrate body with a single- or multilayer coating, containing either Ti, Zr, Hf, V, Nb carbides, nitrides, carbonitrides and/or Ta and/or Al2O3 or ZrO2. In order to improve the characteristics of wear from chip removal or another form of abrasion, the invention suggests that a layer of Zr, Hf, V, Nb, Ta or Cr carbonitride be precipitated either directly upon a layer of Al2O3— or ZrO2— or upon a thin intermediate layer of ZrC or ZrN up to 0,5 &mgr;m, or upon a TiN layer up to 0.1 &mgr;m, or indirectly upon a layer of Al2O3— or ZrO2—.Type: GrantFiled: March 23, 1999Date of Patent: May 1, 2001Assignee: Widia GmbHInventors: Hendrikus Van Den Berg, Udo K{overscore (o)}nig, Klaus Dreyer, Volkmar Sottke, Hartmut Westphal