Patents Assigned to Metaldyne Zell GmbH & Co. KG
  • Patent number: 10670133
    Abstract: A method for producing a metal sleeve includes providing a first metal sleeve semi-finished product having a metal body. The metal body surrounds an inner channel. At least one groove is located in the metal body on the side of the inner channel. The first metal sleeve semi-finished product is pressed into a first die by means of a punch and in the process is formed by impact extrusion into the metal sleeve to be produced. The first die is designed such that a proximal front edge, which is spaced apart from the distal front edge and delimits the groove in the proximal direction, is formed in the metal body on the side of the inner channel. A metal sleeve includes a metal body which surrounds an inner channel running between a proximal and a distal opening. The inner channel has at least one groove set back into the metal body, running in the longitudinal direction of the inner channel and stepped on both sides by a distal and a proximal front edge.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: June 2, 2020
    Assignee: Metaldyne Zell GmbH & Co. KG
    Inventor: Christoph Guhe