Patents by Inventor Wolfgang Wallgram
Wolfgang Wallgram 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: 8388709Abstract: A coated article, in particular a tool for cutting machining, has at least one titanium diboride layer which has been deposited by a thermal CVD process and has a thickness of at least 0.1 ?m. The titanium diboride layer has an extremely fine-grained microstructure with an average grain size of not more than 50 nm.Type: GrantFiled: December 4, 2008Date of Patent: March 5, 2013Assignee: Ceratizit Austria Gesellschaft GmbHInventors: Wolfgang Wallgram, Uwe Schleinkofer, Karl Gigl, Josef Thurner
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Patent number: 8021757Abstract: A tool for machining is made from a hard-metal, cermet or ceramic base material and a single-layer or multi-layer hard material coating on the base material. An additional coating of one or more metals from the group of aluminum, copper, zinc, titanium, nickel, tin or base alloys of these metals is applied to the hard material coating.Type: GrantFiled: May 25, 2007Date of Patent: September 20, 2011Assignee: Ceratizit Austria Gesellschaft mbHInventors: Wolfgang Wallgram, Uwe Schleinkofer, Karl Gigl, Josef Thurner, Wilfried Schintlmeister
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Publication number: 20100279093Abstract: A coated article, in particular a tool for cutting machining, has at least one titanium diboride layer which has been deposited by a thermal CVD process and has a thickness of at least 0.1 ?m. The titanium diboride layer has an extremely fine-grained microstructure with an average grain size of not more than 50 nm.Type: ApplicationFiled: December 4, 2008Publication date: November 4, 2010Applicant: CERATIZIT AUSTRIA GMBHInventors: Wolfgang Wallgram, Uwe Schleinkofer, Karl Gigl, Josef Thurner
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Publication number: 20070254173Abstract: A tool for machining is made from a hard-metal, cermet or ceramic base material and a single-layer or multi-layer hard material coating on the base material. An additional coating of one or more metals from the group of aluminum, copper, zinc, titanium, nickel, tin or base alloys of these metals is applied to the hard material coating.Type: ApplicationFiled: May 25, 2007Publication date: November 1, 2007Inventors: Wolfgang Wallgram, Uwe Schleinkofer, Karl Gigl, Josef Thurner, Wilfried Schintlmeister
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Publication number: 20070048536Abstract: A tool or wearing part includes a base body and a single-layer or multilayer coating. At least one layer of the coating is formed of aluminum borate or contains aluminum borate phase fractions. Tools or wearing parts which have been coated in this way have a considerably improved resistance to abrasion, a high toughness and resistance to oxidation and a low coefficient of friction in contact with the wearing body, which leads to a significantly improved service life.Type: ApplicationFiled: October 16, 2006Publication date: March 1, 2007Inventors: Monika Stoiber, Wolfgang Wallgram, Martin Kathrein
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Patent number: 6726987Abstract: The wearing part, such as a cutting insert, is made from hard metal or cermet. A hard-material coating is applied on the base material. The coating includes a single-layer or multilayer mixed-oxide coat, predominantly comprising Al2O3, in which defined proportions of titanium oxide and boron oxide are dissolved or homogeneously distributed extremely finely. The wearing part is distinguished by a high wear resistance, which improves the service life, and a fine-grained structure and uniformity of the coat and by a highly economic application of the coat.Type: GrantFiled: February 5, 2002Date of Patent: April 27, 2004Assignee: Plansee Tizit AktiengesellschaftInventors: Martin Kathrein, Wilfried Schintlmeister, Wolfgang Wallgram
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Publication number: 20030124363Abstract: The wearing part, such as a cutting insert, is made from hard metal or cermet. A hard-material coating is applied on the base material. The coating includes a single-layer or multilayer mixed-oxide coat, predominantly comprising Al2O3, in which defined proportions of titanium oxide and boron oxide are dissolved or homogeneously distributed extremely finely. The wearing part is distinguished by a high wear resistance, which improves the service life, and a fine-grained structure and uniformity of the coat and by a highly economic application of the coat.Type: ApplicationFiled: February 5, 2002Publication date: July 3, 2003Inventors: Martin Kathrein, Wilfried Schintlmeister, Wolfgang Wallgram
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Patent number: 4895770Abstract: The invention relates to a process for the manufacture of multi-layered wear-resistant CVD- or PVD-coatings applied to hardmetal parts containing WC-Co or WC-Ni, where at least one of the layers is a metal-boronitride layer. According to the invention, the boron concentration in the metal-boronitride layer is maintained below the critical level above which in addition a homogeneous boronitride mixed crystal phase a further phase, particularly a diboride phase is formed. A non-boronic, or only slightly boronic, intermediate layer is employed as a diffusion barrier between the hardmetal and the metal-boronitride layer to limit or prevent the formation of brittle tungsten cobalt boron or tungsten nickel boron phases on the external surface of the hardmetal. The metallic boronitride layer can be applied either as a single layer or in multiple layers alternating with other mechanically resistant layers. The hardmetal part is particularly a cutting insert for machining.Type: GrantFiled: August 30, 1988Date of Patent: January 23, 1990Assignee: Schwarzkopf Development CorporationInventors: Wilfried Schintlmeister, Wolfgang Wallgram
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Patent number: 4599281Abstract: There is disclosed a wearing part comprising a basic body, a coating applied directly to the basic body or to a backing provided on the basic body and which coating consists of one or a plurality of layers of oxycarbides and/or oxynitrides and/or oxyborides and/or oxyboron nitrides and/or oxyboron carbon nitrides of the elements Ti, Zr, Hf, B, Si and Al and having an oxygen content in a range of from about 0.1 to about 5% by weight, alternating in each case with one or a plurality of layers of aluminum-boron mixed oxides having a boron content in a range of from about 0.01 to about 1% by weight. Compared to previously known wearing parts provided with multi-layer coatings a wearing part in accordance with the present invention exhibits significantly increased resistance to wear, as well as excellent adhesive strength, with respect to the hard-material coating, thus resulting in a substantially prolonged useful life.Type: GrantFiled: December 23, 1982Date of Patent: July 8, 1986Assignee: Schwartzkopf Development CorporationInventors: Wilfried Schintlmeister, Wolfgang Wallgram
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Patent number: RE45154Abstract: A tool for machining is made from a hard-metal, cermet or ceramic base material and a single-layer or multi-layer hard material coating on the base material. An additional coating of one or more metals from the group of aluminum, copper, zinc, titanium, nickel, tin or base alloys of these metals is applied to the hard material coating.Type: GrantFiled: February 28, 2012Date of Patent: September 23, 2014Assignee: Ceratizit Austria Gesellschaft mbHInventors: Wolfgang Wallgram, Uwe Schleinkofer, Karl Gigl, Josef Thurner, Wilfried Schintlmeister