New Developments in the Design and Production of Container Assemblies
Volker Wieser, Christof Sommitsch, Kurt Haberfellner, Paul Lehofer, Böhler Edelstahl GmbH & Co KG
Track: EXTRUSION EQUIPMENT - Container
ABSTRACT --- The biggest change in containers during recent years has been the
improved temperature control of billet and container. Such containers are equipped with
modern resistance heating and helical cooling systems. Practical experience has shown
that the advantage of the more uniform temperature distribution has a negative effect on
the life of the mantles of such containers. To improve the life of these state-of-the-art
containers, the extrusion process in a container for a medium-sized press was simulated
using the Finite Element Method. The results show the development of temperatures
and stresses over a number of extrusions until the process reached an equilibrium.
Combining these results with the hot properties of the hot work steels used for the
containers allows the prediction of the lifetime of these components. In this paper, the
results of the simulation and possible improvements in the design of containers and the
most suitable container materials are discussed.
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