Extrusion Die Design and Simulation - Theseus

1 Simulation and Design of Extrusion Dies Kirubel Bogale Degree Thesis Plastics Technology 2011 2 3 DEGREE THESIS Arcada Degree Programme: Plastics Engineering Identification number: 9609 Author: Kirubel Bogale Title: Extrusion Die Design and Simulation Supervisor (Arcada): Mathew Vihtonen Commissioned by: Abstract: The aim of this engineering thesis was to Design and simulate a die for a rectangular pro-file. The project consisted of studying melt flow characteristics of plastics and how the die structure should be set in order to get the desired shape. After the die has been de-signed on 3D Solid edge Design software it was simulated on COMSL flow Simulation software. On the Simulation software it was easy to study how the melt flows and in which part of the die is the shear stress and strain strong and weak. The drag flow and pressure flow were then extracted from the screw parameters which lead into the calculation of the operation point and the operating pressure for the die.

1 INTRODUCTION 1.1 Background One of the keys to successful profile extrusion is combining good profile cross sectional designs with good die design. Frequently, die design for profile extrusion is done using ... Extrusion of plastics, like injection molding, is a relatively simple concept, but the de-

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