Experience from Computer Design and Selection of the Geometry of the Forming Surfaces of a Tool for Drawing of Rod Billets on Screw Extruders

Experience from Computer Design and Selection of the Geometry of the Forming Surfaces of a Tool... Alternative applications of a mathematical model of the process of drawing of ceramic materials for computer design of molding tools with diaphragms for screw extruders are proposed. A technique of determining the parameters of the plasticity function of molded materials and the friction coefficients of the material against the surface of the tool with the use of production equipment is developed. Flow conditions of materials through different types of tools the working molding surfaces of which are upright are analyzed. It is shown how varying the form of the surface of a channel, the drawing ratio of material in the zone of local reduction in the channel cross-section, and the cross-sectional area of the billets enables selection of an optimal combination of these factors for the drawing process. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Refractories and Industrial Ceramics Springer Journals

Experience from Computer Design and Selection of the Geometry of the Forming Surfaces of a Tool for Drawing of Rod Billets on Screw Extruders

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Publisher
Springer US
Copyright
Copyright © 2013 by Springer Science+Business Media New York
Subject
Material Science; Characterization and Evaluation of Materials; Materials Science, general; Ceramics, Glass, Composites, Natural Methods
ISSN
1083-4877
eISSN
1573-9139
D.O.I.
10.1007/s11148-013-9541-7
Publisher site
See Article on Publisher Site

Abstract

Alternative applications of a mathematical model of the process of drawing of ceramic materials for computer design of molding tools with diaphragms for screw extruders are proposed. A technique of determining the parameters of the plasticity function of molded materials and the friction coefficients of the material against the surface of the tool with the use of production equipment is developed. Flow conditions of materials through different types of tools the working molding surfaces of which are upright are analyzed. It is shown how varying the form of the surface of a channel, the drawing ratio of material in the zone of local reduction in the channel cross-section, and the cross-sectional area of the billets enables selection of an optimal combination of these factors for the drawing process.

Journal

Refractories and Industrial CeramicsSpringer Journals

Published: Jul 18, 2013

References

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