Simulation of thixoformability of A356 aluminum alloy using finite volume method

Jafari, Mohammad Reza; Zebarjad, Seyed Mojtaba; Kolahan, Farhad

doi:10.1016/j.msea.2006.11.124

Cited by 9 publications

(3 citation statements)

References 4 publications

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“…According to finite volume method, by using different process parameters such as punch velocity, die angle and initial temperature, semisolid forward extrusion of A356 aluminum alloy was simulated. Moreover, the results showed that both workpiece temperature and punch force depended on the mentioned parameters and were well compatible with the experimental data [2]. Filling and solidification process during thixoforming of rotor in Cu-Ca alloy for small sized induction motors have been analyzed and characterized by experiment and numerical simulation.…”

Section: Introductionsupporting

confidence: 77%

Parameters Optimization of Semisolid Diecasting Process for Air-Conditioner’s Triple Valve in HPb59-1 Alloy

Yan

Zhao

Sha

2010

AMR

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The disadvantages of air-conditioner’s triple valve in HPb59-1 alloy processed by traditional solid state hot forging, such as larger forming loads, lower material utilization, larger subsequent machining allowance, nonuniform microstructure, are put forward. However, semisolid diecasting forming which can overcome the above shortcomings is a fascinating technology. The process paremeters which had a larger influence on filling ability of semisolid slurry and casting quality, such as pouring temperature, shot velocity and preheated temperature of the die, were chosen. Furthermore, based on orthogonal test, the semisolid diecasting process of a certain type triple valve was simulated with FLOW-3D. According to the analysis of temperature field, pressure field and surface defect concentration, the optimal process parameters such as pouring temperature 897.25 °C, shot velocity 1.5 m/s and preheated temperature of the die 260 °C, were obtained, and the effectiveness of the technology was well demonstrated by numerical simulation.

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Section: Introductionsupporting

confidence: 77%

Parameters Optimization of Semisolid Diecasting Process for Air-Conditioner’s Triple Valve in HPb59-1 Alloy

Yan

Zhao

Sha

2010

AMR

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“…Example cases are shown in Figure 20, and examples references include: [39,47,55,69,87,110,116,117,119,124,124,129,130,137,161,167,169,188,219,225,245,255,428,429,433,435,437,[580][581][582][583][584][585][586][587][588];…”

Section: Metal Forming and Castingmentioning

confidence: 99%

Thirty years of the finite volume method for solid mechanics

Cardiff,

Demirdžić

2018

Preprint

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Since early publications in the late 1980s and early 1990s, the finite volume method has been shown suitable for solid mechanics analyses. At present, there are several flavours of the method, including "cell-centred", "staggered", "vertex-centred", "periodic heterogenous microstructural", "Godunov-type", "matrix-free", "meshless", as well as others. This article gives an overview, historical perspective, comparison and critical analysis of the different approaches, including their relative strengths, weaknesses, similarities and dissimilarities, where a close comparison with the de facto standard for computational solid mechanics, the finite element method, is given. The article finishes with a look towards future research directions and steps required for finite volume solid mechanics to achieve widespread acceptance.

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“…They used a laboratory extrusion system to fabricate aluminum rods of 12 mm diameter. Jafari et al [5] simulated forward extrusion process of an aluminium alloy using finite volume method at semisolid state and reported that the temperature and die angle influence the process significantly. However, the theoretical model needs proper implementation of the semisolid rheology during processing.…”

Section: Introductionmentioning

confidence: 99%

Modelling of Extrusion Process for Aluminium A356 Alloy

Simlandi

Barman

Chattaopadhyay

2014

SSP

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In the present work, a model is developed to study extrusion process of A356 alloy in semi-solid state. The distinct rheology of the semisolid alloy reduces energy necessity during extrusion process. Accordingly, a proper rheological model of the alloy is considered in the model towards a detailed study of the process. A combination of analytical and numerical solutions is considered for solving the governing equations. The work finally predicts distribution of velocity and shear stress of the alloy under shear in the considered domain. It also predicts the energy requirement during the extrusion process. It is demonstrated that for semisolid extrusion, reasonably less energy is required as compared to a conventional extrusion process Keywords: Extrusion, semi-solid alloy, apparent viscosity, extrusion power

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Simulation of thixoformability of A356 aluminum alloy using finite volume method

Cited by 9 publications

References 4 publications

Parameters Optimization of Semisolid Diecasting Process for Air-Conditioner’s Triple Valve in HPb59-1 Alloy

Parameters Optimization of Semisolid Diecasting Process for Air-Conditioner’s Triple Valve in HPb59-1 Alloy

Thirty years of the finite volume method for solid mechanics

Modelling of Extrusion Process for Aluminium A356 Alloy

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