Effect of aspect ratio on the metal flow behaviour during forming process: A numerical simulation approach.
Obiko, Japheth Shongwe, Brendon Malatji, Nicholas Bodunrin, Michael Klenam, Desmond
Obiko, Japheth
Shongwe, Brendon
Malatji, Nicholas
Bodunrin, Michael
Klenam, Desmond
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Abstract
This paper presents results on the effect of aspect ratio on the flow stress of 42CrMo4 steel using Deform™ 3D Version 11 simulation software. The FEM simulation process conditions were upsetting temperature of 1000 ◦C and 10 s⁻1 strain rate. The sample aspect ratios (height/diameter) varied within commonly used ranges during conventional Gleeble experimentations. The aspect ratio did not affect the flow stress behaviour during forming. Generally, the forming conditions
influence the flow stress-strain field and distribution behaviour, causing inhomogeneous deformation. A negligible effect of aspect ratio on typical industrial forging process is only attainable between 1.0 and 2.0. The implications of the results for industrial forging are elucidated.
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Date
2024-05-27
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Elsevier
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Keywords
Forging simulation, Effective stress, Metal flow, Deform™ 3D, Effective strain