Positioning and controlling method for precision movement of rotationally symmetric hollow bodies, involves formation of single piece hollow bodies by applying low pressure on mandrel and deforming hollow body by same low pressure

摘要

The method involves formation of single piece hollow bodies from body and bottom with the help of a controlled moveable mandrel for each hollow body. The respective hollow bodies are attached to the mandrel by applying low pressure and are positioned axially on it. The hollow body is deformed synchronously by the same low pressure under radial compressive force acting from inside to outside to a movement unit with the mandrel. An independent claim is also included for the mandrel.