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Influence of Die Surface Textures during Metal Forming-A Study Using Experiments and Simulation

Menezes, Pradeep L and Kishore, * and Kailas, Satish V (2010) Influence of Die Surface Textures during Metal Forming-A Study Using Experiments and Simulation. In: Materials and Manufacturing Processes, 25 (9). pp. 1030-1039.

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Abstract

Friction plays an important role in metal forming processes, and the surface texture of the die is a major factor that influences friction. In the present investigation, experiments were conducted to understand the role of surface texture of the harder die surface and load on coefficient of friction. The data analysis showed that the coefficient of friction is highly dependent on the surface texture of the die surface. Assigning different magnitude of coefficients of friction, obtained in the experiments, at different regions between the die and the workpiece, Finite element (FE) simulation of a compression test was carried out to understand the effect of friction on deformation and stress/strain-rate distribution. Simulation results revealed that, owing to the difference in coefficient of friction, there is a change in metal flow pattern. Both experimental and simulation results confirmed that the surface texture of the die surface and thus coefficient of friction directly affects the strain rate and flow pattern of the workpiece.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Taylor and Francis Group.
Keywords: FE-simulation;Friction;Surface texture;Transfer layer.
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 03 Feb 2011 05:55
Last Modified: 03 Feb 2011 05:55
URI: http://eprints.iisc.ernet.in/id/eprint/35235

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