Analysis of Die Shape Influence on Al-Cu Bimetal Charge Yield during Extrusion Process  Full text 

S. Berski, G. Banaszek, H. Dyja

Czestochowa University of Technology
Institute of the Modelling and Automation of Plastic Working Processes
Al. Armii Krajowej 19; 42-200 Częstochowa, Poland

UDC 621.777

Metall. Min. Ind.,  2011, Vol. 3, No. 7, pp. 45-47

Abstract

In the work an analysis of backward Al-Cu bimetallic rod extrusion process from the value of charge yield in final product was done. The range of research included FEM modeling of the process with programm Forge 2008®. For the chosen parameters of the process, simulation investigations for range of die and punch angle from α=30° to α=70° in the room temperature and extrusion speed v = 10 mm/s were carried out. On the base of the research the character of bimetal flow and values of nose crop and tail crop were obtained. Such investigations allowed to choose an optimal shape of the dies. Moreover the analysis of strain, stress and velocity of bimetal in all cases from the research range was realized to obtain the detailed analysis of metal flow into the deformation zone.

Keywords: FINITE ELEMENT METHOD, BIMETALLIC ROD, EXTRUSION, NOSE CROP, TAIL CROP, DIE, DEFORMATION ZONE