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Research paper thumbnail of Experimental investigation on surface roughness and cutting tool – Workpiece interface temperature for AA6061 using CRITIC and TOPSIS techniques

Materials Today: Proceedings, 2021

The measurement of surface roughness after machining a component plays a significant step for ens... more The measurement of surface roughness after machining a component plays a significant step for ensuring the aesthetic quality of the finished product. The appropriate input parameters selection is highly vital to attain a desired surface finish in any machining process. The present work studies the effect of three different end milling process parameters such as cutting speed, feed and depth of cut to understand their significance over surface roughness and cutting tool – work piece interface temperature. The weight determination for the criteria has been done using CRITIC method and multi objective optimization is carried out using TOPSIS methodology. Taguchi’s Signal to Noise ratio method is adopted for identifying the significant parameter for output responses individually. For both the responses depth of cut is the most potential factor through signal to noise ratio method. A1B2C1 is recommended for low surface roughness and A2B2C1 is found to be the combination for low cutting t...

Research paper thumbnail of Experimental Investigation on the Effect of Fused Deposition Modelling Parameters for HIPS Material by Experimental Design and MRO Techniques

IOP Conference Series: Materials Science and Engineering

Fused Deposition Modelling (FDM) is one of the popular AM technique which utilizes thin thermopla... more Fused Deposition Modelling (FDM) is one of the popular AM technique which utilizes thin thermoplastic filaments to create prototypes and end use products. The parts processed through FDM method have poor mechanical properties and surface quality characteristics in comparison to conventional manufactured products. Extensive research is underway in various parts of the world to bring an enhancement in mechanical properties and other related characteristics of the parts produced through FDM for making the process highly suitable to produce parts for diverse applications. The present work considers slice height, infill density, shell thickness and raster angle varied din three levels (34) to study their effects over output responses such as specimen weight, flexural strain and flexural strength. Taguchi’s L9 orthogonal array is considered for preparing the experimental plan. Flexural testing is adopted for the evaluation of flexural strength. Grey Relational Analysis and Technique of Or...

Research paper thumbnail of Application Of Taguchi’s Experimental Design And Range Analysis In Optimization Of FDM Printing Parameters For PET-G, PLA And HIPS

The present work aims to conduct optimization of Fused Deposition Modeling printing parameters fo... more The present work aims to conduct optimization of Fused Deposition Modeling printing parameters for three different materials namely PET-G, PLA and HIPS which has less consideration than the conventionally adopted material ABS by various authors in the area of research in past decades for the assessment of specimen weight and fatigue strength. The FDM printing parameters such as Slice Height, Infill Density, Shell Thickness and Raster Angle are varied with three levels (3 4 ) to create the experimental design matrix as per Taguchi’s experimental design.Taguchi’s S/N ratio method and Range Analysis are the analysis tools considered for obtaining the optimum parameter combination and significant factor over the output responses measured. From both the above mentioned methods it is observed that Infill density is the most significant factor which affects the specimen weight by contributing 92.14% , 88.86% , 63.52% and fatigue strength by 60.18% , 50.86% , 53.90% for PET-G,PLA and HIPS. ...

Research paper thumbnail of A review of optimization techniques in machining of composite materials

In today’s fast changing scenario in manufacturing sector it is essential to apply optimization m... more In today’s fast changing scenario in manufacturing sector it is essential to apply optimization methods in machining process to increase quality of product in market and to stay competitive. This paper discusses on, several methods used for optimization namely Taguchi method, Gravitational Search Algorithms (GSA), Response Surface Methodology (RSM), Analytic Hierarchy Process (AHP), Genetic Algorithm (GA), Artificial Neural Network (ANN), The Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) and Fuzzy Logic (FL) in various machining processes such as turning, milling, drilling and Abrasive Water Jet (AWJ) for normal and high speed machining of composite work materials. Optimization of control parameters in machining of composite material for various responses are reviewed and presented for the benefit of selection by research professionals.

Research paper thumbnail of Pilot Testing of FDM Samples by Taguchi’s L4 Orthogonal Array and Multi Response Optimization using GRA and DEAR Approaches

1Assistant Professor, Department of Mechanical Engineering, Nehru Institute of Technology, Coimba... more 1Assistant Professor, Department of Mechanical Engineering, Nehru Institute of Technology, Coimbatore, India 2Principal, Chendhuran College of Engineering & Technology, Pudukottai, Tamil Nadu, India 3, 4UG Scholar, Department of Mechanical Engineering, Nehru Institute of Technology, Coimbatore, India ---------------------------------------------------------------------***---------------------------------------------------------------------Abstract : The concept of conducting pilot testing or study is like a rehearsal of the main experimental work which will be conducted in later stages. The aim of conducting such a study is to ensure the validity of the proposed experimental setup, research methodology and other related concepts in a research to endup in a successful manner. The conduction of pilot study many not ensure complete success but it increases the likelihood of success of the main research. The present work conducts pilot testing of four different FDM (Fused Deposition Mod...

Research paper thumbnail of Comparative Study on Effective Turbulence Model for NACA0012 Airfoil using Spalart – Allmaras as a Benchmark

The present work is dedicated to conduct a comparative study on identifying the effective turbule... more The present work is dedicated to conduct a comparative study on identifying the effective turbulence model in terms of flow outlet velocity, error percentage, number of iterations and time coefficient using NACA0012 airfoil by considering Spalart – Allmaras as a reference model. The current study considers 12 different turbulence models including Spalart – Allmaras for obtaining the output characteristics individually. The turbulence models in existence such as Standard K-epsilon, RNG K-epsilon, Realizable variant of Kepsilon, Standard K-Omega, SST K-Omega, BSL K-Omega, Transition K-KL Omega, Transition SST, Reynolds Stress (Linear Pressure Strain), Reynolds Stress (Quadratic Pressure Strain), Reynolds stress (Stress Omega) have been utilized for the evaluation and comparison. The NACA0012 airfoil is modelled using CATIA and the meshed model of the airfoil is analyzed using ANSYS FLUENT under standard boundary conditions. The results obtained have shown that the Standard K – epsilon...

Research paper thumbnail of Static structural analysis of spur gear using ANSYS 15.0 and material selection by COPRAS, MOORA techniques

Materials Today: Proceedings

Research paper thumbnail of Optimization of Turning Process Parameters for EN24 Steel Alloy using Experimental Design

International Journal of Trend in Scientific Research and Development

The overarching aim of this work is to optimize the various process parameters involved in turnin... more The overarching aim of this work is to optimize the various process parameters involved in turning of EN 24 Steel alloy using Tungsten Carbide inserts to enhance the tool life and surface finish. Appropriate or random selection of cutting parameters have serious effect over the final output responses such as Surface Roughness , Tool life and other related properties of both the work piece and tool. Controlling the effective parameters is the need of the hour in any product manufacturing system. In the present work three different turning process parameters such as Cutting Speed, Feed rate and Depth of cut are considered for optimization study by varying them with three levels. The experimental design matrix for conducting experiments were prepared using Taguchi's Orthogonal Array and calculation of Signal to Noise ratio is done for identifying the best combination of parameters. Through ANOVA it is observed that Cutting speed is the most influencing parameter with a maximum contribution of 80.23% comparing to the other input parameters over surface roughness. The S/N ratio method (Smaller is Better) have shown that the parameter level combination A3B1C1 (2000m/min, 0.05 mm/rev, 0.2 mm) can provide good surface finish of the material with enhanced tool life.

Research paper thumbnail of Experimental investigation on surface roughness and cutting tool – Workpiece interface temperature for AA6061 using CRITIC and TOPSIS techniques

Materials Today: Proceedings, 2021

The measurement of surface roughness after machining a component plays a significant step for ens... more The measurement of surface roughness after machining a component plays a significant step for ensuring the aesthetic quality of the finished product. The appropriate input parameters selection is highly vital to attain a desired surface finish in any machining process. The present work studies the effect of three different end milling process parameters such as cutting speed, feed and depth of cut to understand their significance over surface roughness and cutting tool – work piece interface temperature. The weight determination for the criteria has been done using CRITIC method and multi objective optimization is carried out using TOPSIS methodology. Taguchi’s Signal to Noise ratio method is adopted for identifying the significant parameter for output responses individually. For both the responses depth of cut is the most potential factor through signal to noise ratio method. A1B2C1 is recommended for low surface roughness and A2B2C1 is found to be the combination for low cutting t...

Research paper thumbnail of Experimental Investigation on the Effect of Fused Deposition Modelling Parameters for HIPS Material by Experimental Design and MRO Techniques

IOP Conference Series: Materials Science and Engineering

Fused Deposition Modelling (FDM) is one of the popular AM technique which utilizes thin thermopla... more Fused Deposition Modelling (FDM) is one of the popular AM technique which utilizes thin thermoplastic filaments to create prototypes and end use products. The parts processed through FDM method have poor mechanical properties and surface quality characteristics in comparison to conventional manufactured products. Extensive research is underway in various parts of the world to bring an enhancement in mechanical properties and other related characteristics of the parts produced through FDM for making the process highly suitable to produce parts for diverse applications. The present work considers slice height, infill density, shell thickness and raster angle varied din three levels (34) to study their effects over output responses such as specimen weight, flexural strain and flexural strength. Taguchi’s L9 orthogonal array is considered for preparing the experimental plan. Flexural testing is adopted for the evaluation of flexural strength. Grey Relational Analysis and Technique of Or...

Research paper thumbnail of Application Of Taguchi’s Experimental Design And Range Analysis In Optimization Of FDM Printing Parameters For PET-G, PLA And HIPS

The present work aims to conduct optimization of Fused Deposition Modeling printing parameters fo... more The present work aims to conduct optimization of Fused Deposition Modeling printing parameters for three different materials namely PET-G, PLA and HIPS which has less consideration than the conventionally adopted material ABS by various authors in the area of research in past decades for the assessment of specimen weight and fatigue strength. The FDM printing parameters such as Slice Height, Infill Density, Shell Thickness and Raster Angle are varied with three levels (3 4 ) to create the experimental design matrix as per Taguchi’s experimental design.Taguchi’s S/N ratio method and Range Analysis are the analysis tools considered for obtaining the optimum parameter combination and significant factor over the output responses measured. From both the above mentioned methods it is observed that Infill density is the most significant factor which affects the specimen weight by contributing 92.14% , 88.86% , 63.52% and fatigue strength by 60.18% , 50.86% , 53.90% for PET-G,PLA and HIPS. ...

Research paper thumbnail of A review of optimization techniques in machining of composite materials

In today’s fast changing scenario in manufacturing sector it is essential to apply optimization m... more In today’s fast changing scenario in manufacturing sector it is essential to apply optimization methods in machining process to increase quality of product in market and to stay competitive. This paper discusses on, several methods used for optimization namely Taguchi method, Gravitational Search Algorithms (GSA), Response Surface Methodology (RSM), Analytic Hierarchy Process (AHP), Genetic Algorithm (GA), Artificial Neural Network (ANN), The Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) and Fuzzy Logic (FL) in various machining processes such as turning, milling, drilling and Abrasive Water Jet (AWJ) for normal and high speed machining of composite work materials. Optimization of control parameters in machining of composite material for various responses are reviewed and presented for the benefit of selection by research professionals.

Research paper thumbnail of Pilot Testing of FDM Samples by Taguchi’s L4 Orthogonal Array and Multi Response Optimization using GRA and DEAR Approaches

1Assistant Professor, Department of Mechanical Engineering, Nehru Institute of Technology, Coimba... more 1Assistant Professor, Department of Mechanical Engineering, Nehru Institute of Technology, Coimbatore, India 2Principal, Chendhuran College of Engineering & Technology, Pudukottai, Tamil Nadu, India 3, 4UG Scholar, Department of Mechanical Engineering, Nehru Institute of Technology, Coimbatore, India ---------------------------------------------------------------------***---------------------------------------------------------------------Abstract : The concept of conducting pilot testing or study is like a rehearsal of the main experimental work which will be conducted in later stages. The aim of conducting such a study is to ensure the validity of the proposed experimental setup, research methodology and other related concepts in a research to endup in a successful manner. The conduction of pilot study many not ensure complete success but it increases the likelihood of success of the main research. The present work conducts pilot testing of four different FDM (Fused Deposition Mod...

Research paper thumbnail of Comparative Study on Effective Turbulence Model for NACA0012 Airfoil using Spalart – Allmaras as a Benchmark

The present work is dedicated to conduct a comparative study on identifying the effective turbule... more The present work is dedicated to conduct a comparative study on identifying the effective turbulence model in terms of flow outlet velocity, error percentage, number of iterations and time coefficient using NACA0012 airfoil by considering Spalart – Allmaras as a reference model. The current study considers 12 different turbulence models including Spalart – Allmaras for obtaining the output characteristics individually. The turbulence models in existence such as Standard K-epsilon, RNG K-epsilon, Realizable variant of Kepsilon, Standard K-Omega, SST K-Omega, BSL K-Omega, Transition K-KL Omega, Transition SST, Reynolds Stress (Linear Pressure Strain), Reynolds Stress (Quadratic Pressure Strain), Reynolds stress (Stress Omega) have been utilized for the evaluation and comparison. The NACA0012 airfoil is modelled using CATIA and the meshed model of the airfoil is analyzed using ANSYS FLUENT under standard boundary conditions. The results obtained have shown that the Standard K – epsilon...

Research paper thumbnail of Static structural analysis of spur gear using ANSYS 15.0 and material selection by COPRAS, MOORA techniques

Materials Today: Proceedings

Research paper thumbnail of Optimization of Turning Process Parameters for EN24 Steel Alloy using Experimental Design

International Journal of Trend in Scientific Research and Development

The overarching aim of this work is to optimize the various process parameters involved in turnin... more The overarching aim of this work is to optimize the various process parameters involved in turning of EN 24 Steel alloy using Tungsten Carbide inserts to enhance the tool life and surface finish. Appropriate or random selection of cutting parameters have serious effect over the final output responses such as Surface Roughness , Tool life and other related properties of both the work piece and tool. Controlling the effective parameters is the need of the hour in any product manufacturing system. In the present work three different turning process parameters such as Cutting Speed, Feed rate and Depth of cut are considered for optimization study by varying them with three levels. The experimental design matrix for conducting experiments were prepared using Taguchi's Orthogonal Array and calculation of Signal to Noise ratio is done for identifying the best combination of parameters. Through ANOVA it is observed that Cutting speed is the most influencing parameter with a maximum contribution of 80.23% comparing to the other input parameters over surface roughness. The S/N ratio method (Smaller is Better) have shown that the parameter level combination A3B1C1 (2000m/min, 0.05 mm/rev, 0.2 mm) can provide good surface finish of the material with enhanced tool life.