Experimental Analysis of Foaming Agent Contents in AA7075/SiC Closed Cell Aluminum Composite Foam

Singh, Nitish Kumar; Balaguru, S.

doi:10.1007/978-981-99-2349-6_51

Cited by 8 publications

(4 citation statements)

References 14 publications

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“…(5) (6) After that, the relative weight of each alternative was calculated by using (7) and in Table 6. The quantitative utility N j for the j th option was calculated as the last step using Equation ( 8) and tabulated in Table 6: (8) here Q max is the maximum relative significance.…”

Section: Copras Methodsmentioning

confidence: 99%

Multi-Criteria Decision-Making Technique for Optimal Material Selection of AA7075/SiC Composite Foam using COPRAS Technique

Singh,

Balaguru,

Rathore

et al. 2023

jmmf

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Aluminium foams have been manufactured and discovered to have a variety of uses in automotive and structural applications. However, due to their varied characteristics, it is difficult to choose an appropriate material. In this context, the selection of material for good properties is a challenging task. This study attempted to identify materials from various combinations employing the Multiple Attribute Decision Making (MADM) technique based on their mechanical and physical properties. Complex Proportional Assessment (COPRAS) is a Multi-Criteria Decision Making (MCDM) technique employed for evaluating the ranking order of the aluminium composite foam’s formulations based on performance measures. The composite foam with 2.5 wt.% of Calcium carbonate as foaming agent demonstrated the best combination of mechanical properties.

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Section: Copras Methodsmentioning

confidence: 99%

Multi-Criteria Decision-Making Technique for Optimal Material Selection of AA7075/SiC Composite Foam using COPRAS Technique

Singh,

Balaguru,

Rathore

et al. 2023

jmmf

Self Cite

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“…Which shows an increase in microhardness attributed to the combination of powder additives and gas. The observed pyrolysis effect results in the formation of carbides, contributing to heightened surface hardness by disrupting the carbon and hydrogen bonds 27,28 . In the experimental phase, it is also observed that higher microhardness 821.32 VHN is achieved at the input parameters of pulse In contrast, aluminum powder exhibits a microhardness value of 671.1 VHN, influenced by its lower conductivity.…”

Section: Micro-hardnessmentioning

confidence: 99%

Investigation and Optimization on Parameters of Gas Additive Powder Mixed Near Dry –EDM (GAPMNDEDM) by using Taguchi based- Grey Relational Optimization

Ajit,

Sundriyal

2024

jmmf

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The Gas Additive Powder Mix near Dry Electric Discharge Machining (GAPMND-EDM) serves a manufacturing purpose, specifically for cutting hard materials. This involves the removal of material from a workpiece via fusion, ablation, and evaporation caused by the heat energy generated through electric sparks during energy supply. The process offers several advantages in terms of performance and characteristics. This research project aims to optimize key process parameters, including material removal rate, surface roughness, residual stresses, and microhardness. The study employs a methodology that combines the standard deviation-based objective weighting method with GRA (Gray Relational Analysis) optimization to enhance the hybrid GAPMND-EDM process when applied to EN-31 material. Experimental runs were conducted to evaluate the impact of various input factors, such as pulse-on time, discharge current, dielectric fluid pressure, and metallic powder concentration. The taguchi-based GRA method was utilized for this purpose, and the experimental design followed an L-27 orthogonal array with the assistance of Minitab-19 software. A total of 27 experiments were performed, encompassing diverse combinations of process parameters. Subsequently, an ANOVA (Analysis of Variance) was executed to analyze the influence of pulse-on time, discharge current, dielectric fluid pressure, and metallic powder concentration on Material Removal Rate (MRR), Surface Roughness (SR), Residual Stress (RS), and Microhardness (MH). The result shows the optimal combination of parameters, denoted as A2B2C2D1, was identified as the preferred configuration.

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“…Aluminium alloys and their composites have a wide range of applications such as automobile structures, aerospace structures, and marine applications [15][16][17][18]. Al 7075-T651 alloy is one of the well-known Armour-grade aluminium alloys [19,20] because of its high strength and low weight properties.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study on the Effect of Spinning for 7.62 APM2 Projectile Impacting on Al 7075-T651 Target

Pranay,

Panigrahi

2024

MATEC Web Conf.

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When a projectile launches from a rifled barrel, it undergoes rotation around its longitudinal axis, commonly referred to as spinning, to maintain stability during its flight through the air. Upon reaching the target, the projectile possesses both rotational and translational energies. This study examines the impact of rotational energy on the penetration of 7.62 APM2 projectiles by using Finite Element Analysis(FEA). Al 7075-T651 alloy with a thickness of 20mm is considered as target material. Initially, the model is validated using the experimental results available in the literature. The validated model has been extended to study the effect of the projectile’s spinning by using the Recht-Ipson parameters. Based on the results, it is observed that the rotation of the projectile leads to an enhancement in penetrating energy and a reduction in ballistic limit velocity.

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Experimental Analysis of Foaming Agent Contents in AA7075/SiC Closed Cell Aluminum Composite Foam

Cited by 8 publications

References 14 publications

Multi-Criteria Decision-Making Technique for Optimal Material Selection of AA7075/SiC Composite Foam using COPRAS Technique

Multi-Criteria Decision-Making Technique for Optimal Material Selection of AA7075/SiC Composite Foam using COPRAS Technique

Investigation and Optimization on Parameters of Gas Additive Powder Mixed Near Dry –EDM (GAPMNDEDM) by using Taguchi based- Grey Relational Optimization

Numerical Study on the Effect of Spinning for 7.62 APM2 Projectile Impacting on Al 7075-T651 Target

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