Patents by Inventor JOHANNES HASLMAYR

JOHANNES HASLMAYR 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).

  • METHOD AND DEVICE FOR PRODUCING HARDENED STEEL COMPONENTS
    Publication number: 20210189513
    Abstract: The invention relates to a method for press hardening sheet steel components in which a blank is detached from a sheet steel band composed of a hardenable steel alloy and the blank is then austenitized, in that it is heated to a temperature greater than Ac3 and is then inserted into a forming tool and formed in the forming tool, and during the forming, is cooled at a speed greater than the critical hardening speed, characterized in that in order to inhibit microcracks of the second type from being produced during the forming and hardening process in the sheet metal blanks that are to be formed, oxygen is supplied adjacent to the positive radii and/or drawing edges; the invention also relates to a device for performing this method.
    Type: Application
    Filed: February 7, 2017
    Publication date: June 24, 2021
    Applicants: voestalpine Stahl GmbH, voestalpine Metal Forming GmbH
    Inventors: Johannes HASLMAYR, Siegfried KOLNBERGER, Harald SCHWINGHAMMER, Andreas SOMMER, Benedikt TUTEWOHL
  • METHOD AND DEVICE FOR PRODUCING HARDENED STEEL COMPONENTS
    Publication number: 20190048432
    Abstract: The invention relates to a method for press hardening sheet steel components in which a blank is detached from a sheet steel band composed of a hardenable steel alloy and the blank is then austenitized, in that it is heated to a temperature greater than Ac3 and is then inserted into a forming tool and formed in the forming tool, and during the forming, is cooled at a speed greater than the critical hardening speed, characterized in that in order to inhibit microcracks of the second type from being produced during the forming and hardening process in the sheet metal blanks that are to be formed, oxygen is supplied adjacent to the positive radii and/or drawing edges; the invention also relates to a device for performing this method.
    Type: Application
    Filed: February 7, 2017
    Publication date: February 14, 2019
    Inventors: JOHANNES HASLMAYR, SIEGFRIED KOLNBERGER, HARALD SCHWINGHAMMER, ANDREAS SOMMER, BENEDIKT TUTEWOHL
  • METHOD AND DEVICE FOR PRODUCING HARDENED STEEL COMPONENTS
    Publication number: 20190047032
    Abstract: The invention relates to a method for press hardening sheet steel components in which a blank is detached from a sheet steel band composed of a hardenable steel alloy and the blank is then austenitized, in that it is heated to a temperature greater than Ac3 and is then inserted into a forming tool and formed in the forming tool, and during the forming, is cooled at a speed greater than the critical hardening speed, characterized in that in order to inhibit microcracks of the second type from being produced during the forming and hardening process in the sheet metal blanks that are to be formed, oxygen is supplied adjacent to the positive radii and/or drawing edges; the invention also relates to a device for performing this method.
    Type: Application
    Filed: February 7, 2017
    Publication date: February 14, 2019
    Inventors: SIEGFRIED KOLNBERGER, JOHANNES HASLMAYR