Advances Brain Research and Neuroscience
ISSN: 3071-2750 | DOI: 10.64030/3071-2750
Alireza Jalili and Amirreza Jalili
The hot extrusion of Al-Cu bimetallic rods has been found to be an encouraging way to get superior electrical and thermal properties along with lower material cost and weight. The study presents a coupled thermo-mechanical finite element analysis of Al-Cu bimetallic rods during hot extrusion by using the software package ABAQUS, and attention was focused on the punch force, material flow, and thermal gradient zones. The results of this analysis were found to show excellent agreement during hot extrusion of Al-Cu bimetallic. Analysis of various parameters such as the ratio of extrusion, initial billet temperature, friction coefficients, and copper sheath thickness showed that the extrusion ratio, initial billet temperatures, friction coefficients, and copper sheath thickness contribute significantly to the levels of forming loads. Additionally, extreme thermal gradients were determined to exist in the copper sheath and Al during hot extrusion because of the considerably large thermal resistance of Al in comparison to that of copper. An important approach in this study was to use artificial neural networks based on the feed- forward concept of back-propagation to optimize the predicted results. From this analysis, it was found that the predicted results were excellent and showed good resemblance to FEM results in terms of punch force. Additionally, it was found that the billet temperatures were significantly influential in reducing the amount of forming loads during hot extrusion of Al-Cu bimetallic.