Patents by Inventor Stefan Myslowicki
Stefan Myslowicki 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: 11110686Abstract: The invention relates to a hot-forming material composed of a three-layer composite material, comprising a core layer of a hardenable steel which in the press-hardened state of the hot-forming material has a tensile strength >1900 MPa and/or a hardness >575 HV10. Two outer layers are bonded substance-to-substance with the core layer and composed of a steel which is softer in comparison with the core layer and which in the press-hardened state of the hot-forming material have a tensile strength >750 MPa and/or a hardness >235 HV10. The invention further relates to a component and also to a corresponding use.Type: GrantFiled: May 16, 2017Date of Patent: September 7, 2021Assignee: thyssenkrupp AGInventors: Jens-Ulrik Becker, Stefan Myslowicki
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Patent number: 10882106Abstract: Disclosed is a method for producing a composite material, wherein two or more composite components are arranged with respect to one another by casting to form a composite, so as to create a contact region essentially without a material bond between the composite components, wherein the composite components are thereafter materially bonded to one another in the contact region by means of a hot-rolling process.Type: GrantFiled: November 3, 2015Date of Patent: January 5, 2021Assignees: ThyssenKrupp Steel Europe AG, ThyssenKrupp AGInventors: Jens Ulrik Becker, RĂ¼diger Mempel, Stefan Myslowicki, Roland Wunderlich, Ralf Zemke
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Publication number: 20200346436Abstract: The invention relates to a hot-forming material composed of a three-layer composite material, comprising a core layer of a hardenable steel which in the press-hardened state of the hot-forming material has a tensile strength >1900 MPa and/or a hardness >575 HV10, more particularly a tensile strength >2000 MPa and/or a hardness >600 HV10, preferably a tensile strength >2100 MPa and/or a hardness >630 HV10, more preferably a tensile strength >2200 MPa and/or a hardness >660 HV10, more preferably still a tensile strength >2300 MPa and/or a hardness >685 HV10, and two outer layers bonded substance-to-substance with the core layer and composed of a steel which is softer in comparison with the core layer and which in the press-hardened state of the hot-forming material have a tensile strength >750 MPa and/or a hardness >235 HV10, more particularly a tensile strength >900 MPa and/or a hardness >280 HV10, preferably a tensile strength >1000 MPa and/or a hardness >310 HVType: ApplicationFiled: May 16, 2017Publication date: November 5, 2020Applicants: ThyssenKrupp Steel Europe AG, thyssenkrupp AGInventors: Jens-Ulrik BECKER, Stefan MYSLOWICKI
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Patent number: 10780520Abstract: A method for producing a hot-rolled clad composite material may involve cleaning surfaces of multiple flat products, at least one surface of which has a natural unevenness. The cleaned surfaces may then be connected and brought into contact by stacking the flat products. The flat products may then by regionally welded to create a flat product package. The method may further involve heating the flat product package to an initial hot-rolling temperature, hot-rolling the flat product package to form a hot strip, and either cutting the hot strip into plates or sheets or coiling the hot strip to form a coil.Type: GrantFiled: March 2, 2017Date of Patent: September 22, 2020Assignees: THYSSENKRUPP STEEL EUROPE AG, THYSSENKRUPP AGInventors: Hans Ferkel, Stefan Myslowicki
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Publication number: 20200230917Abstract: The invention relates to a hot-forming composite material (1) composed of an at least three-layer material composite comprising a core layer (1.1) of a hardenable steel and two outer layers (1.2), cohesively bonded to the core layer (1.1), of a ferritic, transformation-free FeAlCr steel.Type: ApplicationFiled: October 6, 2017Publication date: July 23, 2020Applicants: ThyssenKrupp Steel Europe AG, thyssenkrupp AGInventors: Janko BANIK, Stefan MYSLOWICKI, Matthias SCHIRMER
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Publication number: 20200224295Abstract: The invention relates to a hot-forming material composed of a three-layer composite material, comprising a core layer of a hardenable steel which in the press-hardened state has a tensile strength >1600 MPa and/or a hardness >490 HV10, more particularly a tensile strength >1700 MPa and/or a hardness >520 HV10, and two outer layers bonded substance-to-substance with the core layer and composed of a soft steel which has a tensile strength corresponding at most to one quarter of the tensile strength of the core layer in the press-hardened state, and provided on one or both sides with an anticorrosion coating, more particularly an aluminum-based coating. The invention further relates to a component and also to a corresponding use.Type: ApplicationFiled: May 16, 2017Publication date: July 16, 2020Applicants: ThyssenKrupp Steel Europe AG, thyssenkrupp AGInventors: Jens-Ulrik BECKER, Stefan MYSLOWICKI
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Patent number: 10710132Abstract: A method for producing a semifinished product with locally different material thicknesses may involve preparing a multilayer, metal material composite, which has a plurality of layers with different ductilities, and rolling the material composite in a method for flexible rolling through a rolling gap formed between two rollers. The rolling gap may be configured such that regions with different material thicknesses are formed. In some cases, the multilayer, metal material composite is rolled at room temperature. Further, the plurality of layers of the multilayer, metal material composite may include a first outer layer disposed on a first side of a middle layer and a second outer layer disposed on a second side of the middle layer, with the second side of the middle layer being opposite the first side.Type: GrantFiled: September 14, 2016Date of Patent: July 14, 2020Assignees: THYSSENKRUPP STEEL EUROPE AG, THYSSENKRUPP AGInventors: Sascha Sikora, Stefan Myslowicki, Jens-Ulrik Becker
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Publication number: 20200061971Abstract: The invention relates to a three-layer wear-resistant steel or ballistic steel. The invention further relates to a process for producing a component from the wear-resistant steel or ballistic steel and also a corresponding use.Type: ApplicationFiled: May 3, 2018Publication date: February 27, 2020Applicants: ThyssenKrupp Steel Europe AG, thyssenkrupp AGInventors: Vanessa WOLSKE, Gabriele VIDRICH-FERKEL, Thorsten KRENKE, Rainer FECHTE-HEINEN, Jens-Ulrik BECKER, Stefan MYSLOWICKI
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Patent number: 10525669Abstract: A method for producing a composite material, particularly a steel composite material, may involve providing a first workpiece and a second workpiece, producing a bonded connection between said first and said second workpiece in order to form a provisional composite, and rolling said provisional composite in order to form the composite material. During the rolling, the bonded connection may be at least partially released, in the form of a predetermined breaking point. The rolling may be performed as hot rolling. Further, the method may involve substantially hermetically sealing the provisional composite by way of a sealant. The first and second work pieces, moreover, may be peripherally connected by way of the bonded connection along an edge area of a contact surface formed by the first and second work pieces.Type: GrantFiled: February 23, 2016Date of Patent: January 7, 2020Assignees: THYSSENKRUPP STEEL EUROPE AG, THYSSENKRUPP AGInventors: Jens-Ulrik Becker, Rainer Klenn, Stefan Myslowicki, Roland Wunderlich
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Publication number: 20190389178Abstract: The present invention relates to a steel material composite, comprising a core layer of a higher-strength or high-strength steel and, integrally bonded to the core layer on one or both sides, an outer layer of ferritic, chemically resistant steel. Corresponding flat steel products are distinguished by favourable properties with respect to their strength, ductility, low sensitivity to hydrogen-induced crack formation and favourable corrosion resistance. The present invention also relates to a method for producing a corresponding steel material composite and to the use of such steel material composites in vehicle structures and in particular in bodywork structures.Type: ApplicationFiled: January 30, 2017Publication date: December 26, 2019Inventors: Jens-Ulrik BECKER, Stefan MYSLOWICKI
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Publication number: 20190381610Abstract: The invention relates to a method for producing a substance-to-substance bond (3) between a first semifinished product (1) and a second semifinished product (2).Type: ApplicationFiled: January 31, 2018Publication date: December 19, 2019Inventors: DAVID PIERONEK, STEFAN MYSLOWICKI, MARCO QUELLER
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Patent number: 10272644Abstract: A flat steel product is disclosed which is particularly suitable for the production of components for motor vehicle bodies by press-hardening, and which has insensitivity to cracking coupled with increased strength and has sufficient suitability for welding for incorporation into a welded construction. This combination of properties is achieved in accordance with the invention by virtue of the flat steel product having a core layer consisting of a steel alloyed with Mn, B and at least 0.3% by weight of C and having a tensile strength of more than 1500 MPa, and an outer layer cohesively bonded to the core layer. The C content of the outer layer is not more than 0.09% by weight. This flat steel product has, in the region of the outer layer, a tensile strength corresponding to not more than half the tensile strength of the steel of the core layer in the ready-hardened state, with the elongation A80 of the outer layer corresponding to at least 1.Type: GrantFiled: December 19, 2014Date of Patent: April 30, 2019Assignee: THYSSENKRUPP STEEL EUROPE AGInventors: Jens-Ulrik Becker, Thomas Gerber, Julia Mura, Stefan Myslowicki
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Publication number: 20190084076Abstract: A method for producing a hot-rolled clad composite material may involve cleaning surfaces of multiple flat products, at least one surface of which has a natural unevenness. The cleaned surfaces may then be connected and brought into contact by stacking the flat products. The flat products may then by regionally welded to create a flat product package. The method may further involve heating the flat product package to an initial hot-rolling temperature, hot-rolling the flat product package to form a hot strip, and either cutting the hot strip into plates or sheets or coiling the hot strip to form a coil.Type: ApplicationFiled: March 2, 2017Publication date: March 21, 2019Applicants: THYSSENKRUPP STEEL EUROPE AG, thyssenkrupp AGInventors: Hans FERKEL, Stefan MYSLOWICKI
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Publication number: 20180272461Abstract: A steel workpiece may have an edge region and a core region. The object of specifying a steel workpiece wherein a maximum near-surface strength and nevertheless favorable surface properties are achieved, especially favorable scaling characteristics during hot rolling, is achieved in that the steel workpiece may be softer in the edge region than in the core region, and in that a sum total of alloy constituents C, Si, Mn, Cr, and N of the steel workpiece overall is greater than 1.45% by weight. And in some examples the sum total of the alloy constituents C, Si, Mn, Cr, and N of the steel workpiece is less than 4.5% by weight.Type: ApplicationFiled: September 30, 2015Publication date: September 27, 2018Applicants: THYSSENKRUPP STEEL EUROPE AG, thyssenkrupp AGInventors: Sascha SIKORA, Jens-Ulrik BECKER, Stefan MYSLOWICKI, Melanie DINTER, David PIERONEK, Thorsten BEIER
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Publication number: 20180272399Abstract: A method for producing a semifinished product with locally different material thicknesses may involve preparing a multilayer, metal material composite, which has a plurality of layers with different ductilities, and rolling the material composite in a method for flexible rolling through a rolling gap formed between two rollers. The rolling gap may be configured such that regions with different material thicknesses are formed. In some cases, the multilayer, metal material composite is rolled at room temperature. Further, the plurality of layers of the multilayer, metal material composite may include a first outer layer disposed on a first side of a middle layer and a second outer layer disposed on a second side of the middle layer, with the second side of the middle layer being opposite the first side.Type: ApplicationFiled: September 14, 2016Publication date: September 27, 2018Applicants: THYSSENKRUPP STEEL EUROPE AG, thyssenkrupp AGInventors: Sascha SIKORA, Stefan MYSLOWICKI, Jens-Ulrik BECKER
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Publication number: 20180243863Abstract: A method for producing a component structure from a first component and a second component may involve connecting the first component to the second component by way of a thermal joining process. The component structure has good crash properties, has good vibration resistance, has a lightweight construction, and is produced cost-effectively at least in part because the first component being a steel composite structure comprising a softer layer and a more-rigid layer. The softer layer may have a lower material strength and a higher deformability than the more-rigid layer. A part of a joint zone that is located in the first component may be formed at least partially in the relatively soft layer.Type: ApplicationFiled: August 17, 2016Publication date: August 30, 2018Applicants: THYSSENKRUPP STEEL EUROPE AG, thyssenkrupp AGInventors: Stefan MYSLOWICKI, David PIERONEK
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Publication number: 20180236750Abstract: A method for producing a composite material, particularly a steel composite material, may involve providing a first workpiece and a second workpiece, producing a bonded connection between said first and said second workpiece in order to form a provisional composite, and rolling said provisional composite in order to form the composite material. During the rolling, the bonded connection may be at least partially released, in the form of a predetermined breaking point. The rolling may be performed as hot rolling. Further, the method may involve substantially hermetically sealing the provisional composite by way of a sealant. The first and second work pieces, moreover, may be peripherally connected by way of the bonded connection along an edge area of a contact surface formed by the first and second work pieces.Type: ApplicationFiled: February 23, 2016Publication date: August 23, 2018Applicants: THYSSENKRUPP STEEL EUROPE AG, thyssenkrupp AGInventors: Jens-Ulrik BECKER, Rainer KLENN, Stefan MYSLOWICKI, Roland WUNDERLICH
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Publication number: 20180185954Abstract: A process may be used to produce a composite material in a rolling plant. The process may involve providing a first workpiece and a second workpiece, which workpieces are configured in the form of a temporary composite. The process may further involve producing a planar connection between the first and second workpieces in the temporary composite by prerolling. Still further, the process may involve rolling, in particular hot rolling, the temporary composite to form the composite material after the planar connection has been produced by prerolling. The process may also involve heating the temporary composite before and/or after the prerolling.Type: ApplicationFiled: June 16, 2016Publication date: July 5, 2018Applicants: THYSSENKRUPP STEEL EUROPE AG, thyssenkrupp AGInventors: Jens-Ulrik BECKER, Stefan MYSLOWICKI, Roland WUNDERLICH
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Patent number: 9902133Abstract: A multilayer flat steel product may include a multitude of mutually bonded steel alloy layers. A steel of a first steel alloy may be provided in at least one of the steel alloy layers, and a steel of a second steel alloy different than the first steel alloy may be provided in at least one of the other steel alloy layers. The steel of the first steel alloy may have high strength, and the steel of the second steel alloy may have lower strength and lower carbon content. To enable function-optimized modelling of local material properties in all directions, at least one steel of the first steel alloy and at least one steel of the second steel alloy may be present at least within one layer of the flat steel product. Further, a component, such as for a motor vehicle body, may be comprised of a corresponding flat steel product.Type: GrantFiled: August 21, 2015Date of Patent: February 27, 2018Assignee: THYSSENKRUPP STEEL EUROPE AGInventors: Jens Ulrik Becker, Stefan Myslowicki
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Publication number: 20170326632Abstract: Disclosed is a method for producing a composite material, wherein two or more composite components are arranged with respect to one another by casting to form a composite, so as to create a contact region essentially without a material bond between the composite components, wherein the composite components are thereafter materially bonded to one another in the contact region by means of a hot-rolling process.Type: ApplicationFiled: November 3, 2015Publication date: November 16, 2017Applicants: ThyssenKrupp Steel Europe AG, ThyssenKrupp AGInventors: Jens Ulrik Becker, RĂ¼diger Mempel, Stefan Myslowicki, Roland Wunderlich, Ralf Zemke