To study the effect of different reinforcements on various parameters in aluminium matrix composite during CNC turning

Kesarwani, Soni; Niranjan, Mahendra Singh; Singh, Vibhu

doi:10.1016/j.coco.2020.100504

Cited by 19 publications

(4 citation statements)

References 14 publications

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“…Bansal and Upadhyay 34 The second reason is the energy loss caused by the collision of the abrasive particles in the cutting tool and the reinforcement powders in the composite structure, and thus the reduction in the cutting force. 32,34,35 As a whole, CNC machining process removes the materials in more quantity with the stipulated time period. The metal removal in the turning process is in the form of chips and material deformation in continuous way is noted.…”

Section: Influence Of Machining Processes On Mrrmentioning

confidence: 99%

“…They stated that when the parameters of voltage, wire feed speed and pulse duration increased, Ra and MRR data increased in direct proportion. Kesarwani et al 32 machined aluminum matrix composite and hybrid composites produced by stir casting method, in CNC turning at the constant parameters of 0.1 mm/dev feed rate, 500 r/min cutting speed and 0.5 mm depth of cut. They revealed that the MRR values of aluminum matrix composites were at least 43% higher than the base alloy.…”

Section: Introductionmentioning

confidence: 99%

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The effect of machining processes on the physical and surface characteristics of AA2024-B₄C-SiC hybrid nanocomposites fabricated by hot pressing method

Çevik

Karabacak

Kök

et al. 2021

Journal of Composite Materials

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In this study, an attempt was made on the AA2024 alloy based hybrid nanocomposites reinforced with different weight percentage of SiC and B4C particles to investigate their physical and machinability characteristics including surface morphology. The Material Removal Rate (MRR), Surface Roughness (SR) of the nanocomposites machined by various machining processes namely Abrasive Water Jet (AWJ) machining, Wire Electrical Discharge (WED) machining and Computer Numerical Controlled (CNC) turning processes were studied comparatively. The machined surface formed by the each machining process is examined and its surface quality was discussed for each hybrid nanocomposite. Results show that the hardness is increased to 101.6 BHN from 179.4 BHN, when 2 wt.% of B4C and SiC particles is added to AA2024 matrix. Observed from the results that the addition of 2 wt.% of B4C and SiC particles produces the highest porosity of 3.36% for nanocomposite samples. The experimental results revealed that the addition of particulates in to the matrix reduces the MRR and increases SR. MRR results showed that hybrid nanocomposites machined by AWJ technique has minimum MRR of 0.0221 mm3/min. The surface roughness of the nanocomposites machined with AWJ process was 3.2 µm and increased to 6.81 µm for the AA2024-B4C-SiC hybrid nanocomposites machined with CNC process.

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Section: Influence Of Machining Processes On Mrrmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The effect of machining processes on the physical and surface characteristics of AA2024-B₄C-SiC hybrid nanocomposites fabricated by hot pressing method

Çevik

Karabacak

Kök

et al. 2021

Journal of Composite Materials

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show abstract

“…Hence, to balance the hardness and the machinability, reinforcements such as graphite (Gr) and MoS 2 are added [3,4]. Researchers have used MoS 2 [5], eggshell [6], graphite [7], etc, along with reinforcement materials such as SiC [8], B 4 C [5], HSS [9], ZrB 2 [10] as to improve the machining characteristics. In particular, Gr reinforcement plays a vital role due to its high thermal and electrical conductivity, low friction, low density and low wear.…”

Section: Introductionmentioning

confidence: 99%

Assessment of machinability behaviour of LM24 – nano Al₂O₃ – gr hybrid composites through stir casting technique

Surendran,

Kumaravel

2024

Mater. Res. Express

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This study investigated the machinability characteristics of the turning operation to attain the optimal combination of minimum surface roughness and the highest material removal rate. The analysis employed Response Surface Methodology (RSM). The study conducted a series of experimental runs using the Box-Behnken Design of Response Surface Methodology. The parameters of spindle speed, feed, and depth of cut were varied, while different weight percentages of reinforcements, including Al2O3 nanoparticles (at 1%, 3%, and 5% weight percentages) and Gr (at 1% weight percentage), were incorporated into the LM24 metal matrix alloy. Response Surface Methodology (RSM) analysis is carried out to optimize the turning machining parameters and enhance the machining performance for better quality and productivity. The derived optimal machining parameters have been verified through confirmatory tests. An analysis of variance (ANOVA) was used to determine the individual contributions of each parameter to the machinability characteristics. Surface morphology analysis revealed the smooth distribution of nanoparticle reinforcements to the metal matrix. The hardness and surface roughness of the machined nanocomposites were studied. Finally, the optimized output machining parameter of minimum surface roughness Ra and maximum material removal rate MRR are 0.522 μm and 110.2 mm3/sec were to be found, and the maximum hardness of the MMC composites was 60.5 HRB.

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“…The casings of aluminum alloy electronic products are only 1–2 mm thick, requiring surface roughness to reach a few nanometers without any deformation, which traditional mechanical finishing methods find difficult to meet [ 10 , 11 ]. Magnetic field-assisted finishing has been proven to be a low-damage [ 12 , 13 , 14 , 15 ], ultra-precision grinding and polishing method [ 16 , 17 ] that can effectively perform planar finishing such as on glass [ 18 ], polymers [ 19 ], stainless steel [ 20 , 21 ], copper [ 22 , 23 ], and alloys [ 24 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Excitation Parameters on Finishing Characteristics in Magnetorheological Finishing for 6063 Aluminum Alloy

Fang,

2024

Materials

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The present work is aimed at studying the effects of the magnetorheological finishing process, using a low-frequency alternating magnetic field, on the finishing performance of 6063 aluminum alloy. The study investigates the influence of key excitation parameters such as current, frequency, excitation gap, and iron powder diameter on the material removal and surface roughness (Ra) of the finished workpiece by experiments. This study employs a single-factor experimental method, and the finish surface is analyzed by a Zigo non-contact white light interferometer. The magnetic field strength in the processing area increases with the increase in the excitation current and decreases with the increase in the excitation gap. When the current frequency is set to 1 Hz, the circulation and renewal of abrasives in the magnetic cluster is most sufficient, resulting in the optimal surface roughness value for the workpiece. According to the experimental results of the excitation parameters, more suitable process parameters were selected for a two-stage finishing experiment. The surface roughness of 6063 aluminum alloy was improved from 285 nm to 3.54 nm. Experimental results highlighted that the magnetorheological finishing using a low-frequency alternating magnetic field is a potential technique for obtaining nano-scale finishing of the 6063 aluminum alloy.

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To study the effect of different reinforcements on various parameters in aluminium matrix composite during CNC turning

Cited by 19 publications

References 14 publications

The effect of machining processes on the physical and surface characteristics of AA2024-B₄C-SiC hybrid nanocomposites fabricated by hot pressing method

The effect of machining processes on the physical and surface characteristics of AA2024-B₄C-SiC hybrid nanocomposites fabricated by hot pressing method

Assessment of machinability behaviour of LM24 – nano Al₂O₃ – gr hybrid composites through stir casting technique

Influence of Excitation Parameters on Finishing Characteristics in Magnetorheological Finishing for 6063 Aluminum Alloy

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To study the effect of different reinforcements on various parameters in aluminium matrix composite during CNC turning

Cited by 19 publications

References 14 publications

The effect of machining processes on the physical and surface characteristics of AA2024-B4C-SiC hybrid nanocomposites fabricated by hot pressing method

The effect of machining processes on the physical and surface characteristics of AA2024-B4C-SiC hybrid nanocomposites fabricated by hot pressing method

Assessment of machinability behaviour of LM24 – nano Al2O3 – gr hybrid composites through stir casting technique

Influence of Excitation Parameters on Finishing Characteristics in Magnetorheological Finishing for 6063 Aluminum Alloy

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The effect of machining processes on the physical and surface characteristics of AA2024-B₄C-SiC hybrid nanocomposites fabricated by hot pressing method

The effect of machining processes on the physical and surface characteristics of AA2024-B₄C-SiC hybrid nanocomposites fabricated by hot pressing method

Assessment of machinability behaviour of LM24 – nano Al₂O₃ – gr hybrid composites through stir casting technique