Patent ID: 6966209

Claim:
An internal high-pressure deformation method comprising furnishing a first workpiece part with a first flange having a first sealing face; furnishing a second workpiece part with a second flange having a second sealing face, wherein the first sealing face matches the second scaling face to deliver a sealing connection between the first flange and the second flange; disposing the first workpiece part and the second workpiece part such that the first sealing face is disposed opposite to the second sealing face; surrounding the first workpiece and the second workpiece by first tool region, a second tool region and a third tool region forming a mold, wherein the third tool region is subdivided into a first segment and a second segment; pressing the first sealing face against the second sealing face such that the connection between the first flange and the second flange is sealed relative to a fluid pressurizing agent; feeding pressurizing fluid into an area delimited by the first workpiece and by the second workpiece; deforming the first workpiece and the second workpiece jointly by internal high-pressure against the first tool region, the second tool region and the third tool region; moving the first tool region away from the deformed first workpiece and the deformed second workpiece; moving the first segment away from the deformed first workpiece, the deformed second workpiece and the second segment in a direction different from the direction of pressing of the first sealing face against the second sealing face to allow removal of the deformed first workpiece and of the deformed second workpiece from the mold.