Patents by Inventor Christian Gierl
Christian Gierl 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: 10960490Abstract: A friction stir welding tool includes a rotation-symmetrical shaft having a proximal end, a distal end, and a pin, which is arranged concentrically about the rotation axis and which has a smaller diameter than the shaft at the proximal end thereof, and thus projects as compared to a shoulder region of the shaft. The shaft, at least in the shoulder region, and the pin each consists of a high-temperature-resistant metal or an alloy thereof. The pin and/or the shaft in the shoulder region consist of or are coated by a composite material, which substantially consists of molybdenum, tungsten, niobium or tantalum or an alloy of at least one of these metals, and a reinforcement phase embedded therein and consisting of at least one material having a Mohs hardness >6, a micrometer particle size, and a free enthalpy of formation at 1300 K of less than ?350 kJ/mol O2.Type: GrantFiled: October 31, 2016Date of Patent: March 30, 2021Assignees: TECHNISCHE UNIVERSITAET WIEN, STIRTEC GMBHInventors: Christian Gierl-Mayer, Herbert Danninger, Thomas Weinberger, Gunter Figner
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Patent number: 10583491Abstract: A tool for machining materials has a main part and one or more blades. The main part is made of a low-alloy steel. The socket is welded to the main part, and the blade edges are made of a hard metal. The hard metal contains at least 82 vol. % of tungsten carbide and a metallic binder made of a cobalt-nickel-based alloy. The hardness of the hard metal is greater than 1350 HV10. The socket has a sintered composite, and 40 vol. % to 60 vol. % of the composite is composed of a metal carbide and a metallic binder. At least 95 vol. % of the metallic binder is made of nickel, and the hardness of the composite is less than 800 HV10.Type: GrantFiled: December 14, 2017Date of Patent: March 10, 2020Assignee: Hilti AktiengesellschaftInventors: Siavash Momeni, Steven Moseley, Arno Glaser, Robert Hellein, Christian Gierl-Mayer, Wolf-Dieter Schubert, Herbert Danninger, Andrea Müller-Grunz, Ralph Useldinger
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Publication number: 20190344352Abstract: A tool for machining materials has a main part and one or more blades. The main part is made of a low-alloy steel. The socket is welded to the main part, and the blade edges are made of a hard metal. The hard metal contains at least 82 vol. % of tungsten carbide and a metallic binder made of a cobalt-nickel-based alloy. The hardness of the hard metal is greater than 1350 HV10. The socket has a sintered composite, and 40 vol. % to 60 vol. % of the composite is composed of a metal carbide and a metallic binder. At least 95 vol. % of the metallic binder is made of nickel, and the hardness of the composite is less than 800 HV10.Type: ApplicationFiled: December 14, 2017Publication date: November 14, 2019Applicant: Hiiti AktiengesellschaftInventors: Siavash Momeni, Steven Moseley, Arno Glaser, Robert Hellein, Christian Gierl-Mayer, Wolf-Dieter Schubert, Herbert Danninger, Andrea Müller-Grunz, Ralph Useldinger
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Publication number: 20190228890Abstract: The invention relates to a method for the production of a component having soft-magnetic properties, from an SMC powder, comprising the steps of filling the SMC powder into a powder press (1), pressing the SMC powder to form the component, removing the component from the powder press (1), if necessary reworking the component. Pressing the SMC powder to form the component is carried out at a temperature between 300° C. and 650° C.Type: ApplicationFiled: December 4, 2018Publication date: July 25, 2019Applicant: Miba Sinter Austria GmbHInventors: Magdalena DLAPKA, Robert HELLEIN, Christian SANDNER, Herbert DANNINGER, Christian GIERL-MAYER, Kevin OUDA
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Publication number: 20180311761Abstract: A friction stir welding tool includes a rotation-symmetrical shaft having a proximal end, a distal end, and a pin, which is arranged concentrically about the rotation axis and which has a smaller diameter than the shaft at the proximal end thereof, and thus projects as compared to a shoulder region of the shaft. The shaft, at least in the shoulder region, and the pin each consists of a high-temperature-resistant metal or an alloy thereof. The pin and/or the shaft in the shoulder region consist of or are coated by a composite material, which substantially consists of molybdenum, tungsten, niobium or tantalum or an alloy of at least one of these metals, and a reinforcement phase embedded therein and consisting of at least one material having a Mohs hardness >6, a micrometer particle size, and a free enthalpy of formation at 1300 K of less than ?350 kJ/mol O2.Type: ApplicationFiled: October 31, 2016Publication date: November 1, 2018Inventors: Christian GIERL-MAYER, Herbert DANNINGER, Thomas WEINBERGER, Gunter FIGNER
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Patent number: 9359662Abstract: An iron-carbon master alloy is described, with a C content of 0.3 to 8 wt % and an upper limit of alloying metals Ni<10 wt %, P<4 wt %, Cr<5 wt %, preferably<1 wt %, Mn<5 wt %, preferably<1 wt %, Mo<3 wt %, W<3 wt %, Cu<1 wt %, a particle size of >20 ?m and a hardness of <350 HV 0.01, and a method for the manufacture of said master alloy.Type: GrantFiled: December 17, 2009Date of Patent: June 7, 2016Assignee: TECHNISCHE UNIVERSITÄT WIENInventors: Christian Gierl-Mayer, Herbert Danninger, Yousef Hemmatpour
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Publication number: 20130101456Abstract: The invention pertains to a method for producing molded articles based on aluminum alloys by metal injection molding, comprising the following steps: a) producing a feed-stock by mixing the metals contained in the desired alloy in the form of metal powders and/or one or more metal alloy powders with a binder; b) producing a green body by injection molding said feedstock; c) producing a brown body by at least partially removing the binder from the green body by catalytic and/or solvent and/or thermal debinding; d) sintering the at least partially debound brown body to obtain the desired molded article; characterized in that, in step c), the binder is completely removed, wherein thermal debinding is carried out to remove the (residual) binder, optionally after having carried out one or more previous debinding steps, said thermal debinding being carried out in an atmosphere containing at least 0.5% by volume of oxygen, whereafter the thus obtained, completely debound brown body is sintered.Type: ApplicationFiled: March 31, 2011Publication date: April 25, 2013Applicants: Technische Universitat Wien, Rubert Fertinger GMBH, BASF SEInventors: Herbert Danninger, Christian Gierl, Branislav Zlatkov, Johan Ter Maat
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Publication number: 20110253264Abstract: An iron-carbon master alloy is described, with a C content of 0.3 to 8 wt % and an upper limit of alloying metals Ni<10 wt %, P<4 wt %, Cr<5 wt %, preferably<1 wt %, Mn<5 wt %, preferably<1 wt %, Mo<3 wt %, W<3 wt %, Cu<1 wt %, a particle size of >20 ?m and a hardness of <350 HV 0.01, and a method for the manufacture of said master alloy.Type: ApplicationFiled: December 17, 2009Publication date: October 20, 2011Applicant: TECHNISCHE UNIVERSITAT WIENInventors: Christian Gierl, Herbert Danninger, Yousef Hemmatpour