Manish Agarwal1 and Saranjit Singh This email address is being protected from spambots. You need JavaScript enabled to view it.1

1School of Mechanical Engineering, KIIT University, Bhubaneswar-751024, Odisha, India


Received: October 27, 2020
Accepted: January 25, 2021
Publication Date: August 16, 2021

 Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

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The paper presents analysis of closed-die forging of eccentrically-located SiCp AMC cylindrical preforms at cold conditions using ‘UpperBound0 approach. The deformation has been considered in two subsequent stages, i.e. free barreling and constrained deformation stages. Second stage was again divided into two modes, i.e. unilateral and bilateral constrained deformations. For basic experimental analysis, the preforms were fabricated via liquid metal stir casting manufacturing route using LM6 Aluminium alloy and Silicon Carbide particles as reinforcements. These preforms were located eccentrically in the closed-die with respect to die axis and subsequently forged into double-hub flange components. The generalized expressions for velocity field, strain rates, various energy dissipations and average forging load were formulated for all the above deformation stage and results were compared with the experimental findings. It is expected that the present work will be useful for the analysis of the precision net-shape flashless closed-die forging operations at cold conditions.

Keywords: Closed-die forging, SiCp, AMC preforms, Double-hub flange component, Die load, Die-cavity fill


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