Method and device for internal high pressure forming

摘要

The sealing die, for use when shaping a profile by inner high pressure, is for a profile with a main contour (1) of one or more walls (2,3,7) extending inwards or outwards or chambers (4-6) pressed radially in front of the profile. The die seals the profile only at the main outer contour. The chamber walls have slits with a depth of at most1 cm to take extensions of the inner and/or outer contour of the profile.