Patents Assigned to Hayes Lemmerz S.r.l.
  • Patent number: 8046900
    Abstract: Process (20) for manufacturing a wheel rim (1) in light alloy including the following operations: providing (21) a rough wheel rim in light ally, comprising a wheel disc (2) and an annular portion (3), the annular portion (3) including a first (4I) and a second (4e) bead defining a drop well (C) having a first profile; processing (23) the rough wheel rim, modifying the first profile in order to obtain a second profile being of a lower thickness than the first profile, at least at an intermediate portion (C1) of the drop well (C), characterized by including a finishing operation (25) of a surface of the second profile intermediate portion by means of a compression action of said surface, the finishing operation leaving the low thickness substantially unchanged.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: November 1, 2011
    Assignee: Hayes Lemmerz S.r.l.
    Inventor: Umberto Afeltra