Modeling was used to simulate extrusion of tungsten (W) particulate/ glassy metal matrix composite rods from powders and give insights to the can design and process parameters. The configuration consisted of a cylindrical copper (Cu) cup and liner filled with metal powder extruded through a 5:1 reducing die orifice. Fluid-structure interactions were modeled using LSDYNA-ALE code where the copper liner, cup and simulated metal powders were the fluid components and the die and ram were rigid body structures. Simulated fluid-structure interactions indicated that steady-state streamlined plastic flow was not established within the cup and powder region, which agrees with experimental results. Redesigning the extrusion system initial can configuration, die angle and reduction ratio is required to eliminate the inward Cu flow at die-exit that interrupts powder flow to prevent forming of a continuous rod.
Modeling PM extrusion of rods
Modellierung der pulvermetallurgischen Erzeugung von Barren
2008
9 Seiten, 7 Bilder, 1 Tabelle, 10 Quellen
Conference paper
English
Extrusion modeling of tire components
Automotive engineering | 1998
|SLUB | 2006
|SLUB | 2010
|Engineering Index Backfile | 1939
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