Finite Element Analysis and Experimental Study on the Effect of Extrusion Ratio during Hot Extrusion Process of Aluminium Matrix Composites

Sathishkumar, Dhanalakshmi; Sivakumar, P.; Sundaram, K. Shanmuga; Anand, S.

doi:10.14429/dsj.67.11535

Cited by 6 publications

(3 citation statements)

References 13 publications

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“…The material of the die, the extrusion needle and the extrusion block were H-13 die steel (4Cr5MoSiV1). The glass lubricant was used in hot extrusion process and the friction coefficient was 0.04 [12].…”

Section: Constitutive and Microstructural Models Of As-cast P91 Alloymentioning

confidence: 99%

“…Jiang et al [11] developed the phenomenological model for the effect of strain rate on recrystallization and grain growth kinetics in the 617B alloy, and the simulated microstructure agrees well with the actual manufactured pipe. Sathishkumar et al [12] studied the extrusion ratio at different billet temperature on the plastic strain and strain rate of aluminium matrix composite during hot extrusion by FE analysis. Tang et al [13] established the Arbitrary Lagrangian-Eulerian (ALE) method to investigate the influence of extrusion process on texture development of alloys.…”

Section: Introductionmentioning

confidence: 99%

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Numerical Simulation and Experimental Research on Microstructural Evolution During Compact Hot Extrusion of Heavy Caliber Thick-Wall Pipe

Liu

Hui

et al. 2019

Chin. J. Mech. Eng.

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Compact hot extrusion (CHE) process of heavy caliber thick-wall pipe is a new material-saving production process. In order to reveal the optimum hot extrusion parameters in CHE process, the effects of the extrusion parameters on the microstructural evolution are investigated systematically. The metadynamic recrystallization (MDRX) kinetic models and grain size models of as-cast P91 steel are established for the first time according to the hot compression tests performed on the Gleeble-3500 thermal-simulation machine. Then a thermal-mechanical and micro-macro coupled hot extrusion finite element (FE) model is established and further developed in DEFORM software. The results indicated that the grain size of the extruded pipe increases with the increasing of initial temperature and extrusion speed, decreases when extrusion ratio increases. Moreover, the grain size is more sensitive to the initial temperature and the extrusion ratio. The optimum hot extrusion parameters are including that, the initial extrusion temperature of 1250 °C, the extrusion ratio of 9 and the extrusion speed of 50 mm/s. Furthermore, in order to verify the simulation precisions, hot extrusion experiment verification on the heavy caliber thick-wall pipe is carried out on the 500 MN vertical hot extrusion equipment. The load-displacement curve of the extrusion process and the grain sizes of the middle part extruded pipe are in good accuracy with the simulation results, which confirms that the hot extrusion FE models of as-cast P91 steel could estimate the hot extrusion behaviors. The proposed hot extrusion FE model can be used to guide the industrial production research of CHE process.

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Section: Constitutive and Microstructural Models Of As-cast P91 Alloymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Numerical Simulation and Experimental Research on Microstructural Evolution During Compact Hot Extrusion of Heavy Caliber Thick-Wall Pipe

Liu

Hui

et al. 2019

Chin. J. Mech. Eng.

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“…The conclusion of Udomphol, (2007) during his investigation shows that as temperature increases, extrusion load also increases for a given extrusion load. Sathishkumar et al, (2017) studied the effect of the extrusion ratio of Silicon Carbide reinforced aluminium matrix composite on the plastic strain of billet temperatures using Finite element analysis (FEA) during the hot extrusion process. It was discovered that as the extrusion ratio increases, the strain rate and plastic stain also increases.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical prediction of extrusion load at different lubricating conditions of aluminium 6063 alloy in backward cup extrusion

Oyinbo¹,

Ikumapayi²,

Jen³

et al. 2020

10.5267/j.esm

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In the present research work using a backward cup extrusion (BCE) die profile, different lubricating conditions on aluminum alloy AA6063 have been experimentally and numerically investigated to predict the extrusion load. It was obvious that due to an increase in applications of the extrusion process, many researchers have worked on the extrusion process using different methods to achieve their aims. This experiment was conducted with three different lubricants namely: Castor oil, Palm Oil and tropical coconut oil; as well as without lubricants. Different lubricating conditions were employed of varying strain rates ranges from 1.5×10-3 s-1 , 2.0×10-3 s-1 , 2.5×10-3 s-1, and 3.0×10-3 s-1 ; Numerical analysis and simulation for dry and lubricated conditions during extrusion load were also performed using DEFORM 3D software. The results show that prediction extrusion load increases with increasing strain rates. The maximum extrusion load was found to be higher for extrusion without lubricants. In all cases of strain rate, palm oil showed a lower extrusion load compared to the other lubricants. Castor oil indicated the highest extrusion load when the experiment is carried out using lubrication. There was a consistent agreement between the result gotten from the experiment and simulation result of the extrusion load-strike curve.

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Sliding Wear Behavior of Cast, Cold Extruded, and Precipitation-Hardened Al/TiCp Metal Matrix Composite

Siddappa

Shivakumar

Mruthunjaya

et al. 2022

Lecture Notes in Mechanical Engineering

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Finite Element Analysis and Experimental Study on the Effect of Extrusion Ratio during Hot Extrusion Process of Aluminium Matrix Composites

Cited by 6 publications

References 13 publications

Numerical Simulation and Experimental Research on Microstructural Evolution During Compact Hot Extrusion of Heavy Caliber Thick-Wall Pipe

Numerical Simulation and Experimental Research on Microstructural Evolution During Compact Hot Extrusion of Heavy Caliber Thick-Wall Pipe

Experimental and numerical prediction of extrusion load at different lubricating conditions of aluminium 6063 alloy in backward cup extrusion

Sliding Wear Behavior of Cast, Cold Extruded, and Precipitation-Hardened Al/TiCp Metal Matrix Composite

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