Study of Forging Process of Yttrium-Modified A356 Aluminum Alloy and Numerical Simulation by Thermo-Viscoplastic Finite Element Method

Heng Keong Kam; Chan Chin Wang; Ying Pio Lim; Wen Chiet Cheong

doi:10.4028/www.scientific.net/KEM.701.177

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 701Study of Forging Process of Yttrium-Modified A356...

Study of Forging Process of Yttrium-Modified A356 Aluminum Alloy and Numerical Simulation by Thermo-Viscoplastic Finite Element Method

Abstract:

In this study, A356 aluminum alloy was heated up to semi-solid state and used as a billet for forward and backward extrusion. The workpiece will undergo solidification at the contact between billet and the tools when the material flowing through the die cavity during the semi-solid extrusion. The plasticity of A356 with 0.3wt% Y at semi-solid state was investigated by performing compression test. A numerical simulation code based on thermo-viscoplastic finite element method was developed to simulate the material flow and study the yttrium-modified A356 aluminum alloy under forward and backward extrusion. A minimum average punch strain rate is proposed for semi-solid extrusion.

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Periodical:

Key Engineering Materials (Volume 701)

Pages:

177-181

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.701.177

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Online since:

July 2016

Authors:

Heng Keong Kam*, Chan Chin Wang, Ying Pio Lim, Wen Chiet Cheong

Keywords:

A356 Aluminum Alloy, Forging, Metal Flow Simulator, Thermo-Viscoplastic FEM

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