Patents by Inventor MARTIN HOLZWEISSIG

MARTIN HOLZWEISSIG 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).

  • Patent number: 11761069
    Abstract: An automotive component is produced by hot forming and press hardening a hardenable steel alloy having a tensile strength of at least 1700 MPa. The hardenable steel alloy, in addition to a balance made up of iron and melting-related impurities, has the following alloy elements carbon, niobium, and titanium. The automotive component is coated by a thermal coating process.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: September 19, 2023
    Assignee: BENTELER AUTOMOBILTECHNIK GMBH
    Inventors: Georg Frost, Andreas Frehn, Karsten Bake, Martin Holzweissig, Rainer Lapsien
  • Patent number: 11548357
    Abstract: A vehicle door includes a window frame and a lower surface portion formed jointly with the window frame in one piece from a hot formed and press hardened sheet metal plate which is made of a steel alloy which includes, in weight-%: Carbon 0.33-0.38, Silicon 0.2-0.7, Manganese 0.7-1.2, Phosphorus max. 0.03, Sulfur max. 0.02, Boron 0.002-0.005, Chromium 0.6-1.0, Copper max. 0.12, Nitrogen max. 0.005, Titanium 0.015-0.025, Nickel 1.5-2.0, Molybdenum 0.2-0.6, Tin max. 0.04, and as optional components Aluminum 0.006-0.08, Niobium 0.02-0.05, with a balance being iron and incidental impurities. At least the lower surface portion has a Brinell hardness of 500 to 600 HB and a yield strength of 1,200 to 1,450 MPa, wherein the lower surface portion and/or the window frame has a wall thickness of at least 6 mm.
    Type: Grant
    Filed: February 15, 2022
    Date of Patent: January 10, 2023
    Assignee: Benteler Automobiltechnik GmbH
    Inventors: Martin Holzweissig, Udo Klasfauseweh
  • Patent number: 11519047
    Abstract: A motor vehicle component and a method of manufacturing thereof is disclosed having at least regionally high-strength and at the same time ductile properties, including providing a sheet metal blank composed of a hardenable steel alloy with at least 0.25% carbon fraction, at least partially heating the sheet metal blank to above austenitizing temperature, in less than 20 seconds, hot-forming and press-hardening the sheet metal blank, in the process, setting a tensile strength Rm of greater than 1800 MPa and an elongation at break A20 of greater than 6%.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: December 6, 2022
    Assignee: BENTELER AUTOMOBILTECHNIK GMBH
    Inventors: Martin Holzweissig, Georg Frost, Ruediger Erhardt
  • Publication number: 20220332174
    Abstract: A vehicle door includes a window frame and a lower surface portion formed jointly with the window frame in one piece from a hot formed and press hardened sheet metal plate which is made of a steel alloy which includes, in weight-%: Carbon 0.33-0.38, Silicon 0.2-0.7, Manganese 0.7-1.2, Phosphorus max. 0.03, Sulfur max. 0.02, Boron 0.002-0.005, Chromium 0.6-1.0, Copper max. 0.12, Nitrogen max. 0.005, Titanium 0.015-0.025, Nickel 1.5-2.0, Molybdenum 0.2-0.6, Tin max. 0.04, and as optional components Aluminum 0.006-0.08, Niobium 0.02-0.05, with a balance being iron and incidental impurities. At least the lower surface portion has a Brinell hardness of 500 to 600 HB and a yield strength of 1,200 to 1,450 MPa, wherein the lower surface portion and/or the window frame has a wall thickness of at least 6 mm.
    Type: Application
    Filed: February 15, 2022
    Publication date: October 20, 2022
    Applicant: Benteler Automobiltechnik GmbH
    Inventors: Martin Holzweissig, UDO KLASFAUSEWEH
  • Publication number: 20210140021
    Abstract: An automotive component is produced by hot forming and press hardening a hardenable steel alloy having a tensile strength of at least 1700 MPa. The hardenable steel alloy, in addition to a balance made up of iron and melting-related impurities, has the following alloy elements carbon, niobium, and titanium. The automotive component is coated by a thermal coating process.
    Type: Application
    Filed: November 10, 2020
    Publication date: May 13, 2021
    Inventors: Georg FROST, Andreas FREHN, Karsten BAKE, Martin HOLZWEISSIG, Rainer LAPSIEN
  • Publication number: 20190366407
    Abstract: The present invention relates to a method of producing a motor vehicle component and to a motor vehicle component. Said motor vehicle component is produced by means of hot forming and press hardening. A blank is heated in a continuous furnace with supply of nitrogen. This produces a skin-decarburized layer on the blank that achieves ductility in a motor vehicle component produced with ultrahigh strength.
    Type: Application
    Filed: May 29, 2019
    Publication date: December 5, 2019
    Inventors: Martin HOLZWEISSIG, Markus KETTLER, Karsten BAKE, Georg FROST, Andreas FREHN
  • Publication number: 20170327917
    Abstract: A motor vehicle component and a method of manufacturing thereof is disclosed having at least regionally high-strength and at the same time ductile properties, including providing a sheet metal blank composed of a hardenable steel alloy with at least 0.25% carbon fraction, at least partially heating the sheet metal blank to above austenitizing temperature, in less than 20 seconds, hot-forming and press-hardening the sheet metal blank, in the process, setting a tensile strength Rm of greater than 1800 MPa and an elongation at break A20 of greater than 6%.
    Type: Application
    Filed: May 11, 2017
    Publication date: November 16, 2017
    Inventors: Martin HOLZWEISSIG, Georg FROST, Ruediger ERHARDT
  • Publication number: 20170299344
    Abstract: An armoring part for a vehicle includes a steel plate made of at least partially hot formed and press hardened armor steel and having a hardness of 380 to 760 Vickers (HV). Applied on at least one side of the steel plate is a coat which is made of a metal material which is softer than a metal material of the armor steel. The coat is a thermally applied layer and has a hardness of 10 to 230 Vickers (HV).
    Type: Application
    Filed: October 4, 2016
    Publication date: October 19, 2017
    Applicant: BENTELER DEFENSE GMBH & CO. KG
    Inventors: ULRICH BORCHERT, MARTIN HOLZWEISSIG, UDO KLASFAUSEWEH, CHRISTIAN RÜSING