Hollow profile or simular workpiece for deforming by high internal pressure, method of making a light metal profile and apparatus therefor

摘要

The hollow profiled workpiece is made of a metal alloy with end and side walls forming corners with different thicknesses. Internal high pressure is exerted by a fluid medium on the interior of the hollow profile. A thinner-walled end piece starting from an end section (20) is next to the thicker wall of the end (14) and side (16) walls forming a corner.