Analysis of radial-shear rolling process parameters of aluminum alloys based on FEM modeling

Yury Gamin,Dinh Xuan Ta,Alexander Koshmin,V.V Belov

doi:10.1051/matecconf/202031511001

Yury Gamin, Dinh Xuan Ta + Show 2 more

Open Access

https://doi.org/10.1051/matecconf/202031511001

Copy DOI

Abstract

This article presents the features of temperature change at different deformation-velocity parameters of radial-shear rolling process. Based on modeling the maps of temperature and strain rates distribution and zone of intensive heating are obtained. It is shown that with the elongation ratio μ≥1.5, the deformation heating increases more intensively at lower heating temperatures of the workpiece. The rods are obtained from 1050A alloy (Al99.5 %) with mechanical properties (UTS ~ 111 MPa, YS ~ 109 MPa, δ ~ 15%), reflecting the partially recrystallized structure.

Highlights

Aluminum alloys are still one of the main constructional materials in aircraft industry, electrical engineering and other industries due to their combination of properties [1-3]
In the field of materials science and metal forming in the last decades much attention is given to methods of severe plastic deformation (SPD) which allow significantly to increase the mechanical properties of the material due to ultrafine grained (UFG) or nanostructures [11, 12]
This is confirmed by the strain rate distribution maps over cross-section of the rod in the deformation zone (Fig. 3)

Summary

Introduction

Aluminum alloys are still one of the main constructional materials in aircraft industry, electrical engineering and other industries due to their combination of properties [1-3]. The main problem in application of SPD methods in industry is the inability to obtain semi-finished or large products. The urgent issue is development and studying of processing material methods which allow obtaining the product of acceptable sizes with high level of mechanical properties that are in demand in modern industry. Due to special calibration and large feed angle (β≥18°) the radial deformation (reduction) of workpiece takes place and the crosssectional nonuniformity of deformation is reduced [19]. Based on the aforesaid the urgent scientific task is to study the characteristics of SRS process as method for obtaining semi-finished products from aluminum alloys To solve this task the combination of experimental study and FEM modeling is proposed [20-23], which makes possible to reduce the volume of laboratory experiments and study in detail the main parameters affected on formation of properties

Experimental materials and Methods

Experimental rolling

FEM simulation

Results and discussion

Conclusion