Superplastic Forming of a Three-Stage Hemispherical 5083 Aluminium Profile

Balasubramanian, M.; Ganesh, Pasupathy; Ramanathan, K.; Kumar, V.S. Senthil

doi:10.5545/sv-jme.2014.2178

Cited by 11 publications

(9 citation statements)

References 21 publications

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“…Experimental validation of the proposed PLC approach for predicting the pressure cycle in superplastic forming (SPF) of an aluminium alloy, AA5083, is presented in this section. From the uniaxial hot tensile tests [8], the optimum forming temperature of AA 5083 was found to be 450 °C at a strain rate of 1. The SPF of the PLC process is shown in Fig.…”

Section: Methodsmentioning

confidence: 99%

“…The entire die setup, consisting of both the male and female parts, was surrounded without any air gap by a band heater and the entire assembly was placed in a 100 kN hydraulic press under airtight conditions. The die setup was heated up to the optimum temperature [8] of 450 °C and maintained until the experiment was completed. The 72-mm diameter and 1.5 mm thick specimens were kept between the male and female parts.…”

Section: Fig 3 Illustrations Of Dimensions In Split Diementioning

confidence: 99%

“…A 3D finite element quarter model was created with the ABAQUS pre-processor and used to study the blow forming process in superplastic forming simulation. The geometry of the blank material was assumed to undergo visco-plastic [8] deformation and the die was assumed to be a discrete rigid body. The blank was meshed with the shell element [14] with 2752 nodes and the rigid die was meshed with R3D3 element with 3018 nodes.…”

Section: Finite Element Analysismentioning

confidence: 99%

“…levels and reported the ability of the model to predict deformation behaviour. Balasubramanian et al [8] have optimized the uniform thickness distribution in different die radii domes (the parametric design models) and different die entry regions in a three-stage hemispherical dome with constant pressure method. Carrino et al [9] have proposed a time incrementalloading process to maintain maximum strain rate during the pressure cycle.…”

Section: Introductionmentioning

confidence: 99%

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An Experimental Investigation and Numerical Simulation in SPF of AA 5083 Alloy using Programming Logic Control Approach

Balasubramanian

Ganesh

Ramanathan

et al. 2017

SV-JME

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A new programming logic control method is proposed to predict the pressure during the superplastic forming process with improved forming characteristics of AA 5083 alloy sheets. The method has produced a better uniformity thickness profile in a complex, multidimensional profile in comparison with existing methods. To optimize pressure during the forming process, it is possible to maintain an optimum strain rate. Accurate control of the magnitude and duration of forming pressure and, as a result, the achievement of uniform thickness distribution in the taper angle, die corner, entry regions, and micro-forming of the multidimensional dome has been proved in this paper. Profiles formed without significant wrinkles and necking have been obtained via the fine adjustment of the applied pressure. The experimentally obtained results, using a multidimensional dome profile, are compared with the finite element method (FEM) simulated results and both are found to be in good agreement. The influence of key factors such as strain rate sensitivity index and friction coefficient on the optimum pressure-time cycle and also on the thickness distribution of the profile have been investigated and optimized. Furthermore, the microstructure was examined in parent metal and superplastically formed components.

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Section: Methodsmentioning

confidence: 99%

Section: Fig 3 Illustrations Of Dimensions In Split Diementioning

confidence: 99%

Section: Finite Element Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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An Experimental Investigation and Numerical Simulation in SPF of AA 5083 Alloy using Programming Logic Control Approach

Balasubramanian

Ganesh

Ramanathan

et al. 2017

SV-JME

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“…The process parameters selected for simulation include pressure, forming time, and initial sheet thickness. Also, Balasubramanian et al [19] experimentally and numerically studied the three-stage forming process. Discontinuities in the thickness of the formed profile have been observed due to the transition of radius from one stage to the next.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Superplastic Forming Process of AA7075 Alloy for the Best Wall Thickness Distribution

Nguyen

Tran

et al. 2021

Adv. technol. innov.

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This work aims to optimize the process parameters for improving the wall thickness distribution of the sheet superplastic forming process of AA7075 alloy. The considered factors include forming pressure p (MPa), deformation temperature T (°C), and forming time t (minutes), while the responses are the thinning degree of the wall thickness ε (%) and the relative height of the product h*. First, a series of experiments are conducted in conjunction with response surface method (RSM) to render the relationship between inputs and outputs. Subsequently, an analysis of variance (ANOVA) is conducted to verify the response significance and parameter effects. Finally, a numerical optimization algorithm is used to determine the best forming conditions. The results indicate that the thinning degree of 13.121% is achieved at the forming pressure of 0.7 MPa, the deformation temperature of 500°C, and the forming time of 31 minutes.

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Biaxial Low-Temperature Superplasticity of AA 5083 Produced by Accumulative Roll Bonding

McBride

Brown

Surghani

et al. 2022

J. of Materi Eng and Perform

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Superplastic Forming of a Three-Stage Hemispherical 5083 Aluminium Profile

Cited by 11 publications

References 21 publications

An Experimental Investigation and Numerical Simulation in SPF of AA 5083 Alloy using Programming Logic Control Approach

An Experimental Investigation and Numerical Simulation in SPF of AA 5083 Alloy using Programming Logic Control Approach

Optimization of Superplastic Forming Process of AA7075 Alloy for the Best Wall Thickness Distribution

Biaxial Low-Temperature Superplasticity of AA 5083 Produced by Accumulative Roll Bonding

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