Patent ID: 6493913
Filing Date: 2002-12-17
Classification: B21D,B30B,Y10T

Abstract:
A device for hydraulic forming of a tubular component under high inner pressure compressive conditions, the device comprising:a forming tool comprising an upper die and a lower die; a travel-limited mechanical press arranged above the forming tool and comprising a press plunger; at least one piston-cylinder unit comprising a cylinder with an interior and a piston arranged in the interior of the cylinder, wherein the interior of the cylinder contains a hydraulic fluid; wherein the press plunger is connected to the piston-cylinder unit remote from the upper die of the forming tool and wherein the at least one piston-cylinder unit is configured to act on the upper die to generated a limited relative movement between the upper die and the press plunger; and wherein the at least one piston-cylinder unit is configured to establish fluid communication between the interior of the cylinder and an inner space of the tubular component to be formed.