Investigations on the Effect of Tungsten Carbide and Graphite Reinforcements during Spark Erosion Machining of Aluminium Alloy (AA 5052) Hybrid Composite

Dhas, D. S. Ebenezer Jacob; Velmurugan, C.; Wins, K. Leo Dev

doi:10.1007/s12633-018-9817-0

Cited by 21 publications

(8 citation statements)

References 17 publications

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“…Billets of aluminium-silicon7-magnesium alloy were chosen as the matrix material and micro particles of silicon carbide, boron carbide and coke were chosen as reinforcement materials for the hybrid composite. The composition of aluminium-silicon7-magnesium matrix alloy was examined using optical emission spectroscopy [27][28][29], Table 1. From the physical properties of the particulate reinforcements namely, silicon carbide, boron carbide and coke, it could be observed that silicon carbide particles are denser than boron carbide particles, Tables 2-4.…”

Section: Materials Selectionmentioning

confidence: 99%

“…The ultrasonic-assisted melt-stir casting setup consists of an induction furnace, a control panel, a servo motor drive, an ultrasonicator and a four bladed magnetic stirrer. The reinforcements were mixed thoroughly and were pre-heated, steadily introduced into the aluminium-silicon7-magnesium matrix alloy melt and stirred at 1070 min À 1 using the magnetic stirrer for about 12 minutes [27][28][29][30][31]. The ultrasonic transducer is used to uniformly disperse the reinforcements within the aluminium melt.…”

Section: Ultrasonic-assisted Melt-stir Castingmentioning

confidence: 99%

“…The sample composites were prepared by rubbing it over abrasive sheets and belt grinder [33,34]. Rotating disc polishing machine was also used along with diamond paste of particle size 3 μm [27][28][29][30][31]35].…”

Section: Microstructurementioning

confidence: 99%

“…Certain studies on the influence of graphite and tungsten carbide particles reinforced in aluminium alloy 5052 exhibited improvement in mechanical properties such as microhardness, density, tensile strength, peak elongation and impact strength. Also, there was a substantial improvement in the material removal rate, during electric discharge machining of these hybrid composites [28,29]. Recent investigations on aluminium-silicon12-iron alloy/ silicon nitride composites and aluminium-magnesium1silicon-copper alloy/titanium carbide/molybdenum disulphide hybrid composites revealed improvement in mechanical and tribological behaviour, due to the addition of these reinforcement particles [30,31].…”

Section: Introductionmentioning

confidence: 99%

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Effect of carbide ceramics and coke on the properties of dispersion strengthened aluminium‐silicon7‐magnesium hybrid composites

Dhas

Raja

Jannet

et al. 2023

Materialwissenschaft Werkst

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In this study, aluminium‐silicon7‐magnesium alloy was reinforced with carbide ceramics (silicon carbide and boron carbide) and coke microparticles. The composite samples (S1, S2, and S3) with 4 %, 8 %, and 12 % by weight of silicon carbide and boron carbide microparticles and 8 % by weight of coke micro particles respectively, were prepared through the ultrasonic assisted melt‐stir casting route. It was observed from the literature that only a few research works reported the cumulative effect of adding these micro‐particulate reinforcements within aluminium‐silicon7‐magnesium alloy. The microstructural evaluation revealed uniform dispersion of particulate reinforcements. Area energy dispersive x‐ray spectroscopy scan results proved the presence of the reinforcement particles as heterogeneous phases at distinct zones. The samples undergone tensile tests failed under the brittle fracture mode. The ultimate tensile strength of the composites improved by about 27.4 %, the % elongation improved by about 6.8 %, and Vickers microhardness dropped 1.9 % to the maximum. Dimples were observed in the fracture morphology analysis and it was mainly due to the mixed ductility of the sample S2. An abrasive wear mechanism was observed in the worn‐out sample S2. The wear rate decreased significantly with an increase in weight fraction of the reinforcements.

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Section: Materials Selectionmentioning

confidence: 99%

Section: Ultrasonic-assisted Melt-stir Castingmentioning

confidence: 99%

Section: Microstructurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of carbide ceramics and coke on the properties of dispersion strengthened aluminium‐silicon7‐magnesium hybrid composites

Dhas

Raja

Jannet

et al. 2023

Materialwissenschaft Werkst

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“…Previous researchers have conducted studies on end milling of aluminium hybrid composites of A356, AA 6061, AA 2024, AA 5083 and AA 7075 with particulates of silicon carbide, aluminium, graphite, molybdenum disulphide etc. [11][12][13]. For metal matrix composites to continue to grow as a commercial material, particularly for ultra-light high-strength applications, significant research is still needed to optimize the machining of these materials.…”

Section: Introductionmentioning

confidence: 99%

Empirical modeling of profile roughness parameters during end milling of aluminium alloy 5052/tungsten carbide/graphite hybrid composite

Dhas,

Wins,

Beatrice

2023

Materialwissenschaft Werkst

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This study presents an empirical modeling approach to reveal the effect of end milling parameters on the profile roughness parameters. Aluminium hybrid composite was melt‐stir die cast into the required work material, setting a predetermined weight fraction of reinforcements. The experimental design was adopted using the Taguchi meta‐heuristic algorithm for the selection of the levels of the end milling parameters. The profile roughness parameters namely arithmetic average roughness (Ra), root mean square roughness (Rq), and mean roughness depth (Rz) were considered as output responses, which were measured using stylus type surface roughness tester. Non‐linear second‐order empirical models were formulated and from them, the profile response parameters were predicted with 95 % accuracy. The results revealed that the depth of cut and spindle speed are contributing 54.22 % and 38.6 % respectively among the selected input parameters on the cumulative output.

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A Review on the Manufacturing of Aluminum Metal Matrix Composite by Various Stir Casting Method

Vasava

Singh

2021

Lecture Notes in Mechanical Engineering

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Investigations on the Effect of Tungsten Carbide and Graphite Reinforcements during Spark Erosion Machining of Aluminium Alloy (AA 5052) Hybrid Composite

Cited by 21 publications

References 17 publications

Effect of carbide ceramics and coke on the properties of dispersion strengthened aluminium‐silicon7‐magnesium hybrid composites

Effect of carbide ceramics and coke on the properties of dispersion strengthened aluminium‐silicon7‐magnesium hybrid composites

Empirical modeling of profile roughness parameters during end milling of aluminium alloy 5052/tungsten carbide/graphite hybrid composite

A Review on the Manufacturing of Aluminum Metal Matrix Composite by Various Stir Casting Method

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