Patent ID: 6575007
Filing Date: 2003-06-10
Classification: B21D,Y10T

Abstract:
A device for forming a hollow profile formed as a single or multi-chamber profile by an internal high pressure generated by a fluid pressure medium within the hollow profile, the device comprising a sealing die having a carrier part engageable in a profile chamber and a collar arranged on the carrier part so as to seal a face of the profile chamber, the collar having a base part, the carrier part and the collar having a passage opening as a pressure medium supply and extraction channel, the collar being a resilient rubber die part arranged on a face of the carrier part facing the profile chamber, the base part being a block-like member with an outer wall formed conical at least in an end section facing the profile chamber and tapering towards the profile chamber whereby a stop point of the profile chamber face which is effective for sealing for forming lies on the conical section of the outer wall of the base part.