Patents Assigned to Advanced Metalforming Technologies, Inc.
  • Method for making seamless wheel rims
    Patent number: 6298702
    Abstract: A method for forming seamless tubular workpieces, such as vehicular wheel rim components. In the method, a flat circular blank having a central aperture is expanded into the interior of a hollow mandrel using a mushroom-shaped spinning roller. In this expansion operation, the blank is caused to take on a tubular shape having an exterior contour which conforms to the interior contour of the hollow mandrel.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: October 9, 2001
    Assignee: Advanced Metalforming Technologies, Inc.
    Inventor: Helmut Korte