Patent ID: 6305204
Filing Date: 2001-10-23
Classification: B21D,Y10T

Abstract:
A forming device comprising:a fluid source providing a pressurized fluid;a strongback having a die cavity;a tubular workpiece having a hollow interior;a plurality of die components mated to form a forming die having an internal cavity with a forming portion, the forming portion of the die being entirely disposed in the die cavity of the strongback, the internal cavity being configured to correspond to a predetermined tube profile, the forming die surrounding at least a portion of the tubular workpiece; anda mandrel assembly disposed at least partially within the hollow interior of the tubular workpiece in an area proximate the die, the mandrel assembly being in sealing engagement with the hollow interior of the tubular workpiece, the mandrel assembly having at least one feed aperture in fluid connection with the fluid source, the at least one feed aperture directing the pressurized fluid against the hollow interior of the tubular workpiece to cause the tubular workpiece to expand into the internal cavity.