Optimization of hole quality parameters using TOPSIS method in drilling of GFRP composite

Niranjan, T.; Singaravel, B.; Raju, Saraswati

doi:10.1016/j.matpr.2022.03.042

Cited by 15 publications

(7 citation statements)

References 34 publications

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“…In general, higher dynamic stability is produced with high value of spindle speed. Hence, reduced roundness error is noticed with high range of spindle speed [4]. Rotational stability is better at high range of spindle speed.…”

Section: Resultsmentioning

confidence: 91%

“…Some of the hole quality parameters are roundness error, roughness of the machined area and diameter deviation. [4,5] Generally, optimization process is carried out for prediction of optimum set of process parameters and enhances the machining efficiency. It is classified into single objective optimization and multi objective optimization process parameter.…”

Section: Introductionmentioning

confidence: 99%

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Optimization of Hole quality parameters using TOPSIS method in drilling of GFRP composite

Potta Chaitanya,

Thallapalli vamshi krishna,

Arikari ganesh

et al. 2023

Int. J. Sci. Res. Arch.

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The attractive mechanical properties and light weight to strength ratio Glass Fiber Reinforced Plastic (GFRP) composites are preferred in automobile and aerospace industries. Drilling process is one of the basic and important manufacturing processes. Drilling of GFRP and its issues with hole quality are fiber crack, roughness of surface, dimensional error and delamination. In this work, the effect of three different drill (Slot type, twist type and brad type) and process parameters (machining speed and feed rate) on hole quality error is analyzed. Hole quality parameters, chosen are roundness error, roughness of the machined area, delamination factor and diameter deviation. Simultaneous optimization of multiple objectives is difficult task. Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) is used for optimization process parameters and minimize the hole quality error during drilling of GFRP composite. The result revealed that spur type drill with higher range of spindle speed was provided less error in the drilled holes. Also, TOPSIS procedure has minimum computational time because of its less computational steps and highly preferrable for various decision-making problems in manufacturing industry. Hole quality error is directly influencing the assembly accuracy and its minimization is important one.

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Section: Resultsmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Optimization of Hole quality parameters using TOPSIS method in drilling of GFRP composite

Potta Chaitanya,

Thallapalli vamshi krishna,

Arikari ganesh

et al. 2023

Int. J. Sci. Res. Arch.

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“…The TOPSIS method [44][45][46][47][48][49] was used to confirm the optimal values of displacement and stress of the novel bridge -type amplifier as follows:…”

Section: Topsis Methodsmentioning

confidence: 99%

Design optimization of a novel symmetrical differential lever displacement magnification compliant mechanism

Huynh,

Nguyen,

Dinh

2023

Preprint

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Compliant mechanisms with flexure hinges work based on the deformation of a flexure hinge. The high displacement amplification ratio of the compliant mechanism gives it a large working space, an issue that has been challenging to solve for researchers. Therefore, this study proposes grey relational analysis and the TOPSIS method, the EDAS method and the Taguchi method as means of optimising the displacement magnification of a novel symmetrical differential lever displacement magnification compliant mechanism. The model of the mechanism studied here was designed by SolidWorks. The design variables of the model consisted of variable A, variable B, variable C and variable D. The design variables and their levels were used to create 27 different models with Minitab experimental design software. The displacement and stress of the 27 models was then analysed with the finite element method (FEM) in ANSYS. The results of the FEM analysis were used in optimisation with the methods mentioned above. The FEM results indicated that the designed variables significantly affected the displacement and stress of the symmetrical differential lever displacement magnification compliant mechanism. Issues were also confirmed with five optimisation methods. The predicted and optimal values of the displacement were 0.11276 mm and 0.1179 mm, with error of 4.36%. The input displacement was 0.01 mm, while the displacement magnification ratio was 11.79 times.

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“…But, these approaches have few drawbacks in terms of low MRR in dry EDM, high concentrated volatile mixture, chances of explosion in near dry EDM, oxide formation and corrosion effects in water based dielectric. In this decade, recently, vegetable oil is used as dielectric fluid by researchers in EDM process and it is observed for obtaining of sustainability in EDM process [1][2][3][4][5][6][7][8][9][10][11][12].…”

Section: Figure 2 Waveguidementioning

confidence: 99%

Design and manufacturing of waveguide of parabolic antenna using EDM process

Rapolu Manojkumar,

Chokkalla Naveen kumar,

Srinivas Alaveni

et al. 2023

Int. J. Sci. Res. Arch.

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Wireless technology was one of the main areas of research in the world of communication system today and a study of communication incomplete without an understanding of the operation and manufacturing of waveguide of parabolic antenna. Waveguide is an important electromagnetic wave transmission Component of parabolic antenna. potential benefits of parabolic antenna doesn’t required any cables to transmitte electromagnetic signal. Designing of waveguide was a most important role before its manufacturing. An attempt is made to design and manufacture the waveguide by varying cross- section using CREO software. Manufacturing of waveguide Carried out by milling, the inner pocket of waveguide was machined by Electrical discharge machining process. Which results accurate surface and suitable for travelling of electromagnetic wave without any disturbance.

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Optimization of hole quality parameters using TOPSIS method in drilling of GFRP composite

Cited by 15 publications

References 34 publications

Optimization of Hole quality parameters using TOPSIS method in drilling of GFRP composite

Optimization of Hole quality parameters using TOPSIS method in drilling of GFRP composite

Design optimization of a novel symmetrical differential lever displacement magnification compliant mechanism

Design and manufacturing of waveguide of parabolic antenna using EDM process

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