EXPERIMENTAL AND NUMERICAL ASPECTS REGARDING LEAD ALLOY PLASTIC DEFORMATION
Journal Title: ROMANIAN JOURNAL OF TECHNICAL SCIENCES - APPLIED MECHANICS - Year 2012, Vol 57, Issue 1
Abstract
The aim of this paper is to present an experimental and finite element analysis (FEA) of the cold forward extrusion of lead alloy. The influence of die angle, reduction ratio and ram speed on the extrusion force during the extrusion process was investigated. In order to determine the deformation flow patterns, square grids were scribed on the meridional plane of one of the two matching halves of the splitted-lead specimens. A finite element analysis (FEA) of the cold forward extrusion process was undertaken in parallel with the experimental programme. The flow curve of lead alloy was determined by torsion tests and data were used in numerical analysis. The FEA simulation was carried out using MSC SuperForm, FEA software, specifically produced for metal forming simulation. Data obtained from the FE model included extrusion force, effective stress and strain and material deformation flow. The data obtained by numerical simulation confirm theoretical and experimental results.
Authors and Affiliations
Mariana POP, Dan FRUNZA, Adriana NEAG
Keywords
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