A Hybrid Numerical Method for Modeling the Extrusion Process. (2015)

• Record Type: Journal Article
• Authors: Tabatabaei, S.A.; Abrinia, K.
• Is Part Of: Materials today. Volume 2:Number 10(2015)Part A
• Page Start: 4748
• Page End: 4757
• Publication Date: 2015
• Subjects: Numerical -- Extrusion -- Electrostatics -- Upper bound.; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2015.10.008
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: Analytical and numerical modelling of the metal forming processes has been studied by many researchers during the past decades. So far, several methods have been introduced to model the material behaviour during the forming processes. In this research, the analogy between the metal forming process and the electrostatics is investigated. It is shown that the governing relations in the plasticity theory of upper bound are analogous to the electrostatic equations. The forward extrusions of round billets to complex sections from the published papers were analyzed using the electrostatic method and the calculated results were compared to the simulated and experimental data in the literature. Finally, some experiments were performed for the extrusion of a round billet to a complex section. It was shown that the extrusion process could be modelled easily and accurately using the electrostatics mathematical formulation.