Finite Element Simulation of Hydrostatic Extrusion Process to Produce Thin Bimetallic Parts

Journal of Modern Processes in Manufacturing and Production

مقاله 5، دوره 6، شماره 4، بهمن 2017، صفحه 59-68   

نوع مقاله: Research Paper

نویسندگان

Hamid Montazerolghaem^{* 1، 2}؛ Ali Delfani³

¹Department of Mechanical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran

²Modern Manufacturing Technologies Research Center, Najafabad Branch, Islamic Azad University, Najafabad, Iran

³Department of Mechanical Engineering, Jami Institute of Technology, Isfahan, Iran

چکیده

The hydrostatic extrusion is a new method of extrusion process. The most important advantage of this method is reduction of friction and close tolerance for the coating thickness. In this study, the hydrostatic extrusion simulation of bimetallic wires has performed using of finite element method. In the following the advantages of hydrostatic extrusion compared to the direct extrusion are presented.It can be concluded that by increasing the friction coefficient between the work piece and the die, the extrusion force value also increases. Increasing the cross-section reduction when the die angle kept constant as a result of increase in die length, consequently leads to an increase in the extrusion force.Regarding to the absence of friction in the die and almost uniformly deformation and homogeneous in the hydrostatic extrusion, the product with a uniform coating thickness can be obtained as it is very important for manufacture of very high length bi-metal products. 

کلیدواژه‌ها

Hydrostatic Extrusion؛ Bimetallic Wire؛ Finite element method