This project is focused on achieving the optimum die angle and volumetric flow rate for extrusion process. In extrusion process, the temperature of the melt might get increased at the die exit, due to the friction between melt and the die surface, which leads to the degradation of plastic material properties. So the basic aim of this project is to control the melt temperature by governing different factors responsible for the rise of temperature. When the plastics melt enters the axis-symmetric steel die at a given temperature and at a given flow rate and passes through it, during the process heat generation takes place due to viscous dissipation. The increase in temperature of the melt occurs due to the shearing taking place in the die. The amount of temperature increased during the process can be controlled by changing the die angle and the volumetric flow rate of the plastic melt.
The 2-d model and the meshing for this work is generated in GAMBIT software, Whereas the overall simulation is performed on Polyflow module of ANSYS software.
ANSYS, CFD, Die Angle, Extrusion, GAMBIT
