Mould for hollow profile pressure forming has axial punch with working head having forming rollers for inner wall of workpiece

摘要

The mould for hollow profile pressure forming has a matrix (1) and an axial punch to press the workpiece. The axial punch has a working head (W) with rollers (30) to engage the inner wall of the hollow profile. The rollers are mounted in a cage (20) with an inner wedge (40) to radially load them.