P.V.RAJESH

@saranathan.ac.in

Assistant Professor and Department of Mechanical Engineering
Saranathan College of Engineering

P.V.RAJESH


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https://researchid.co/rajesh-mech

RESEARCH, TEACHING, or OTHER INTERESTS

Mechanical Engineering, Ceramics and Composites, Biomaterials, Control and Optimization
11

Scopus Publications

44

Scholar Citations

3

Scholar h-index

1

Scholar i10-index

Scopus Publications

  • Multi-attribute recursive optimization (MARO) for EDM of D3 tool steel
    Rekha Rajasekaran, Rajesh Pinnavasal Venukrishnan, Baskar Neelakandan, Varatharajulu Muthukrishnan
    Revista Materia, 2025
    Electric Discharge Machining (EDM) is one of the most effective unconventional material removal techniques that mill electrically conductive objects, despite their hardness using electrical discharge. This elite method provides excellent accuracy and surface finish within short duration. The presented research envisages to study the effect of process variables of EDM namely Pulsating Current (I), Pulse-on-time (Ton) and Pulse-off time (Toff) on machining performance measures namely Tool Wear Rate (TWR), Surface Roughness (SR) and Material Removal Rate (MRR). The best possible condition for specimen selection is presented by a new technique known as Multi Attribute Recursive Optimization (MARO). The optimal experimental conditions were found with Ton 100 s, Toff 49.82 s, and I 4.99 A, with ideal responses of SR 0.057 µm, MRR 0.036 g/min, and TWR 3.301 g/min. For the best run identification, the METHod for Enrichment Evaluation, Preference Ranking Organization METHod (PROME-THEE) was used while Historical Data Design (HDD) was used to validate the result obtained. The integration of PROMETHEE and HDD known as MARO is identified to appreciate degree of the methods analyzed. The close convergence of PROMETHEE and HDD at 97% guarantees the accuracy of the proposed MARO technique.
  • EXPERIMENTAL INVESTIGATION OF FEMTOSECOND LASER ABLATION AND MICRO-HOLE GEOMETRY IN Al6061/Al2O3 COMPOSITES
    R. REKHA, S. ROSELINE, P. V. RAJESH, N. BASKAR
    Surface Review and Letters, 2025
    The study aimed to create good quality micro-holes to improve the efficiency of heat exchangers. Al6061 was chosen as the material for the fabrication of heat exchangers and to improve its strength it was reinforced with 10 wt.% of alumina. The composite was fabricated using stir casting technology. Tensile strength and hardness of the composites were determined. Micro-holes were drilled on the composites using femtosecond laser micromachining center. Parameters like laser fluence, repetition rate, and pulse overlap ratio were varied to find the ablation threshold, hole diameter, and hole depth. The micro-hole features were observed through a profilometer and scanning electron microscopy analysis. On observation, it was found that as the laser fluence increased, the ablation threshold values of the composites decreased. A saturation point was reached in the ablation value as the repetition rate increased. The increase in the laser fluence led to the increase in hole diameter and hole depth at various repetition rates. Increase in the repetition rate decreased the ablation threshold value but increased the hole depth and hole diameter. Better hole geometry was detected at a laser fluence of 2.49[Formula: see text]J/cm2 and 10[Formula: see text]kHz repetition rate. At high repetition rate and pulse overlap, cracks, and recast layers were observed due to high accumulation of heat in those areas.
  • Fabrication of equipment and IoT-assisted monitoring for enhanced zero-till farming
    P. V. Rajesh, J. Ashvin, M. Harish, G. Kishore, S. Nidheesh
    Emerging Technologies and Marketing Strategies for Sustainable Agriculture, 2024
    As the global population continues to burgeon, sustainable and efficient agricultural practices are essential to meet the increasing demands for food production while safeguarding the environment. Zero-till farming, characterized by minimal soil disturbance during cultivation, offers a promising approach to achieve these objectives. The present methods of seed sowing are time consuming and inconvenient to handle. To overcome these difficulties, the present research work focuses on the development of specialized equipment and an internet of things (IoT)-based monitoring system to enhance zero-till farming practices. The equipment component of this study encompasses the development of a non-tilling seed sower with solid fertilizer sprayer, alongside field monitoring capabilities. This research contributes to the advancement of precision agriculture and the promotion of sustainable food production systems, ultimately addressing the pressing challenges of global food security and ecological preservation.
  • ARAS-BASED SELECTION OF OPTIMAL SPECIMEN AMONG PRPS AND ITS VALIDATION USING MVGFD
    P.V. Rajesh, M. Sriram Prasanth
    Decision Making Models and Applications in Manufacturing Environments, 2024
    Composites result from joining two or more engineering materials with different physical and chemical properties. When combined, these individual materials can produce a resultant composite with superior mechanical and tribological properties compared to the unit materials. In a composite, typically, there are two entities. One is a matrix, and the other is reinforcement. The composite materials are heterogeneous when viewed on micro-scale but homogeneous, when magnified. A polymer matrix composite (PMC) is made up of various short or continuous fibers bound together by an organic polymer resin. PMCs are designed to transfer loads between fibers through the matrix. Some of the advantages with PMCs include their light weight, high stiffness, and their high strength along the direction of their reinforcements. When the reinforcement inside the polymer matrix is necessarily a powder made up of fine particles, then the composite structure is known as Particle/Particulate Reinforced Plastic (PRP). In the ensuing work, hybrid PRP composites samples are created through a novel technique called Stir Moulding. Several experiments are carried out to gauge their relevant properties. The best composite specimen is then chosen using Additive Ratio ASsessment (ARAS), a quantitative type Multi-Criteria Decision Making 182(MCDM) method. The result thus obtained is validated using multi-variant general factorial design (MVGFD) methodology.
  • Data-driven optimization on the workability and strength properties of M-30 grade concrete using MOORA
    A. Anandraj, S. Vijayabaskaran, P.V. Rajesh
    Computational Intelligence Based Optimization of Manufacturing Process for Sustainable Materials, 2023
    Construction in India and other developing countries is increasing at an alarming rate, as is the consumption of energy and resources. As a result of these developments, most developing countries have condensed the usage of virgin materials as fine and coarse aggregates in construction. As a result, they are concerned about the environment, natural resources, and garbage recycling. Many industries produce huge amounts of waste that ends up in landfills. These materials can be used as a substitute to traditional building materials in the construction industry. This method conserves natural resources and decreases landfill site requirements. The primary goal of this present work is to discover the concrete’s potential by utilizing Bentonite, Recycled Glass Aggregate (RGA) and Recycled Concrete Aggregate (RCA). The study’s hypothesis is that using bentonite (0%, 5%, 10%, and 15%) as a replacement for cement in concrete, along with recycled glass aggregate (0%, 10%, 15% and 20%) as fine aggregate, and recycled concrete aggregate (0%, 10%, 15% and 20%) as a replacement for coarse aggregate in concrete, results in improvements in the overall quality of concrete. This research study deals with the examination of compressive strength, workability and split tensile strength for 7days as well as 28days and comparison of their strength with conventional concrete. Based on the test results, the maximum compressive strength, workability and split tensile strength for the optimal percentage of mix was found out using a Multi-Criteria Decision Making (MCDM) technique known as Multi-Objective Optimization based on Ratio Analysis (MOORA).
  • Parametric Selection and Quantitative Optimization of Process Parameters in Milling Using HDD
    R. Rekha, P. V. Rajesh, N. Baskar, P. Jothi Palavesam
    Sustainable Smart Manufacturing Processes in Industry 4 0, 2023
    The modern world is unthinkable without the advent of aluminium alloys and their allied composites. Being the most abundantly available material in our mother Earth, aluminium finds its usage dating back to several centuries ago. Owing to their attractive attributes such as low weight, affordable cost of raw materials, high strength-to-weight ratio and excellent workability, aluminium alloys and their relative composites are enjoying immense popularity and omnipresence almost in every field such as automobile, aircraft and marine vehicle construction materials, multi-purpose containers, structural components, house building, etc. This research work concentrates on an analytical study-cum-evaluation of machinability behaviour of gravity die-casted aluminium matrix composites (GDC-AMCs) during the milling process, in which chill cast aluminium alloy LM25 is reinforced with boron carbide ceramic particles. Material removal rate (MRR) and resultant cutting forces are calculated during the process. Finally, the best specimen with optimal material properties is selected from a series of composite combinations using a specialized subsect in response surface methodology (RSM)–based optimization called historical data design (HDD).
  • Optimizing Friction Stir Welding of Dissimilar Grades of Aluminum Alloy Using WASPAS
    Pinnavasal Venukrishnan Rajesh, Krishna Kumar Gupta, Robert Čep, Manickam Ramachandran, Karel Kouřil, Kanak Kalita
    Materials, 2022
    Aluminum is a widely popular material due to its low cost, low weight, good formability and capability to be machined easily. When a non-metal such as ceramic is added to aluminum alloy, it forms a composite. Metal Matrix Composites (MMCs) are emerging as alternatives to conventional metals due to their ability to withstand heavy load, excellent resistance to corrosion and wear, and comparatively high hardness and toughness. Aluminum Matrix Composites (AMCs), the most popular category in MMCs, have innumerable applications in various fields such as scientific research, structural, automobile, marine, aerospace, domestic and construction. Their attractive properties such as high strength-to-weight ratio, high hardness, high impact strength and superior tribological behavior enable them to be used in automobile components, aviation structures and parts of ships. Thus, in this research work an attempt has been made to fabricate Aluminum Alloys and Aluminum Matrix Composites (AMCs) using the popular synthesis technique called stir casting and join them by friction stir welding (FSW). Dissimilar grades of aluminum alloy, i.e., Al 6061 and Al 1100, are used for the experimental work. Alumina and Silicon Carbide are used as reinforcement with the aluminum matrix. Mechanical and corrosion properties are experimentally evaluated. The FSW process is analyzed by experimentally comparing the welded alloys and welded composites. Finally, the best suitable FSW combination is selected with the help of a Multi-Attribute Decision Making (MADM)-based numerical optimization technique called Weighted Aggregated Sum Product Assessment (WASPAS).
  • Process modelling and experimental analysis of optimal specimen selection in organic CMCs
    P. V. Rajesh, Kanak Kalita, Xiao-Zhi Gao
    Computers Materials and Continua, 2022
    Bone grafting is a surgical restructuring procedure of replacing broken bones and reconstructing missing bone pieces so that complex bone fractures can be repaired to avoid any serious health risk as well as permanent bone disfiguration. Normally, human bones tend to regenerate and heal completely from fracture. But it needs a small scaffold to provide the necessary space to grow. Bone implants allow a broken bone to grow seamlessly. Traditionally, non-corrosive metal alloys are used for fixing broken bones. A metal plate is fastened between two ends of broken bones to join them. However, issues like high weight, high cost, low wear resistance, etc. led to the emergence of ceramics and ceramic-based composites in surgical engineering. Recent trends indicate the usage of organic ceramics and their associated composites as biomimetic materials for prostheses and other biomedical applications. This research paper deals with the fabrication of one such type of ceramic matrix composite (CMC) specimen with sea sponge and cuttlebone using powder metallurgy process by varying composition of cuttlebone, the particle size of the ceramics and sintering temperature of green compacts. Evaluation of thermo-mechanical properties and optimization of process parameters is carried out using the preferential selection index (PSI) method. The results obtained from this technique are further validated using Multi-Level General Factorial Design (MLGFD).
  • Effects of Process Parameters in Friction Stir Welding of Aluminium Matrix Composites - A Review
    RAJESH P V
    Engineering Access, 2021
  • MOORA-driven decision making to select the optimal specimen of organic CMCs
    Rajesh P. V.
    Data Driven Optimization of Manufacturing Processes, 2020
    Bone grafting or bone implant is a typical procedure in surgery in which a missing or broken bone is replaced in order to treat bone fractures that pose a significant health risk to the patients. Several research works have been carried out in the past few years regarding various composite materials used in bone implants, their fabrication methods, and evaluation of their physical, mechanical, chemical, and thermal properties. The use of ceramic powders and ceramic-based composites in biomedical applications are steadily increasing over years mainly due to their advantages like high compressive strength, excellent hardness, etc. In this research work, organic ceramic matrix composites with varying proportions of conch shell and sea sponge are fabricated using powder metallurgy technique and their physicomechanical properties such as density, porosity, water absorption, and micro-hardness are evaluated. Finally, optimization of process parameters is done using multi-objective optimization based on ratio analysis (MOORA) to select the best possible specimen of CMCs.
  • TOPSIS-based selection of optimal proportion among different combinations of hybrid AMCs
    Rajesh P. V.
    Data Driven Optimization of Manufacturing Processes, 2020

RECENT SCHOLAR PUBLICATIONS

  • EXPERIMENTAL INVESTIGATION OF FEMTOSECOND LASER ABLATION AND MICRO-HOLE GEOMETRY IN Al6061/Al 2 O 3 COMPOSITES
    R Rekha, S Roseline, PV Rajesh, N Baskar
    Surface Review and Letters, 2550182 , 2025
    2025
    Citations: 1
  • Multi-attribute recursive optimization (MARO) for EDM of D3 tool steel
    R Rajasekaran, RP Venukrishnan, B Neelakandan, V Muthukrishnan
    Matéria (Rio de Janeiro) 30, e20240723 , 2025
    2025
  • Evaluation of Process Parameters and Combinatorial Optimization of Sustainable Bricks Reinforced with Waste Ashes
    SS P V Rajesh, Vigneshwar P, R D Krithik
    Annual Technical Volume: Innovations in Mechanical Engineering – Cutting … , 2025
    2025
  • Experimental investigation on fabrication and Machinability of aluminium Saw Dust ash composites (ASDAC)
    PV Rajesh, R Rekha, B Monika, RS Perumal, J Rufus, S Vijay
    Materials Today: Proceedings , 2024
    2024
  • Experimental evaluation of macroscopic surface characteristics of bamboo fibre epoxy polymer matrix composite
    R Rekha, PV Rajesh, I Sham, S Sanjai, V Kishore, SJ Farook
    Materials Today: Proceedings , 2024
    2024
    Citations: 3
  • Aras-Based Selection of Optimal Specimen among PRPs and Its Validation Using MVGFD
    PV Rajesh, MS Prasanth
    Decision-Making Models and Applications in Manufacturing Environments, 181-210 , 2024
    2024
  • Fabrication of Equipment and IoT-Assisted Monitoring for Enhanced Zero-Till Farming
    PV Rajesh, J Ashvin, M Harish, G Kishore, S Nidheesh
    Emerging Technologies and Marketing Strategies for Sustainable Agriculture … , 2024
    2024
    Citations: 2
  • Parametric Selection and Quantitative Optimization of Process Parameters in Milling Using HDD
    R Rekha, PV Rajesh, N Baskar, PJ Palavesam
    Sustainable Smart Manufacturing Processes in Industry 4.0, 245-261 , 2023
    2023
  • Data-driven optimization on the workability and strength properties of M-30 grade concrete using MOORA
    A Anandraj, S Vijayabaskaran, PV Rajesh
    Computational Intelligence based Optimization of Manufacturing Process for … , 2023
    2023
    Citations: 1
  • Biocompatible Nano-Electro-Mechanical System–Based Cantilever: An Overview
    R Rekha, MVS Devi, M Shanmugavalli, PV Rajesh, PJ Palavesam, ...
    Materials for Sustainable Energy Storage at the Nanoscale, 401-418 , 2023
    2023
  • Optimizing friction stir welding of dissimilar grades of aluminum alloy using WASPAS
    PV Rajesh, KK Gupta, R Čep, M Ramachandran, K Kouřil, K Kalita
    Materials 15 (5), 1715 , 2022
    2022
    Citations: 17
  • Process Modelling and Experimental Analysis of Optimal Specimen Selection in Organic CMCs.
    PV Rajesh, K Kalita
    Computers, Materials & Continua 70 (2) , 2022
    2022
    Citations: 4
  • Optimizing Friction Stir Welding of Dissimilar Grades of Aluminum Alloy Using WASPAS. Materials 2022, 15, 1715
    PV Rajesh, KK Gupta, R Cep, M Ramachandran, K Kouril, K Kalita
    s Note: MDPI stays neutral with regard to jurisdictional claims in published … , 2022
    2022
  • Process Evaluation and Numerical Optimization in Friction Stir Welding of Dissimilar AMCs
    PV Rajesh, A Saravanan
    Handbook of Research on Advancements in the Processing, Characterization … , 2022
    2022
  • Desirability approach-based optimization of process parameters in turning of aluminum matrix composites
    PV Rajesh, A Saravanan
    Computational Technologies in Materials Science, 71-100 , 2021
    2021
    Citations: 2
  • Selection of Optimal Specimen in Laser Beam Cutting using PSI
    PVR J.Ijas ahamad, N.Balaguru, B.Joehin aro, S.Karthikeyan, S.Paramaguru
    International Journal for Science and Advanced Research in Technology 7 (3 … , 2021
    2021
  • Research Review in Experimental Analysis of Al 6061, Al 2024 in CNC Using MOORA Technique
    NB S.Abdul Razzaq, K.Diwakar, B.Saravanan, T.Shanmuha, S.Vinoth Kumar, P.V ...
    International Journal of Engineering Research and Applications 11 (03), 36-39 , 2021
    2021
  • A Review on the effects of process parameters in TIG facing of metal alloys over stainless steel
    RV P.V.Rajesh, Ryan Abraham Thomas, K.Suryaprakash, M. Venkata Subramanian
    International Journal of Management, Technology And Engineering 11 (03), 27-35 , 2021
    2021
  • Effects of Process Parameters in Friction Stir Welding of Aluminium Matrix Composites - A Review
    PV Rajesh
    MAHASARAKHAM INTERNATIONAL JOURNAL OF ENGINEERING TECHNOLOGY 7 (1), 16-22 , 2021
    2021
    Citations: 2
  • MOORA-Driven Decision Making to Select the Optimal Specimen of Organic CMCs
    PV Rajesh
    Data-Driven Optimization of Manufacturing Processes, 48-73 , 2021
    2021

MOST CITED SCHOLAR PUBLICATIONS

  • Optimizing friction stir welding of dissimilar grades of aluminum alloy using WASPAS
    PV Rajesh, KK Gupta, R Čep, M Ramachandran, K Kouřil, K Kalita
    Materials 15 (5), 1715 , 2022
    2022
    Citations: 17
  • Process Modelling and Experimental Analysis of Optimal Specimen Selection in Organic CMCs.
    PV Rajesh, K Kalita
    Computers, Materials & Continua 70 (2) , 2022
    2022
    Citations: 4
  • Experimental evaluation of macroscopic surface characteristics of bamboo fibre epoxy polymer matrix composite
    R Rekha, PV Rajesh, I Sham, S Sanjai, V Kishore, SJ Farook
    Materials Today: Proceedings , 2024
    2024
    Citations: 3
  • TOPSIS-Based Selection of Optimal Proportion Among Different Combinations of Hybrid AMCs
    PV Rajesh
    Data-Driven Optimization of Manufacturing Processes, 74-101 , 2021
    2021
    Citations: 3
  • Fabrication of Equipment and IoT-Assisted Monitoring for Enhanced Zero-Till Farming
    PV Rajesh, J Ashvin, M Harish, G Kishore, S Nidheesh
    Emerging Technologies and Marketing Strategies for Sustainable Agriculture … , 2024
    2024
    Citations: 2
  • Desirability approach-based optimization of process parameters in turning of aluminum matrix composites
    PV Rajesh, A Saravanan
    Computational Technologies in Materials Science, 71-100 , 2021
    2021
    Citations: 2
  • Effects of Process Parameters in Friction Stir Welding of Aluminium Matrix Composites - A Review
    PV Rajesh
    MAHASARAKHAM INTERNATIONAL JOURNAL OF ENGINEERING TECHNOLOGY 7 (1), 16-22 , 2021
    2021
    Citations: 2
  • Optimization of process parameters and machinability in milling analysis aluminium–zirconia composites
    PV Rajesh, AR Subass, V Tamilpriyan, S Vasanth
    International Journal of Advanced Research Methodology in Engineering … , 2018
    2018
    Citations: 2
  • Optimization of Testing Parameters in Immersion Corrosion Testing of Aluminium Alloy (Al6061)–Alumina (Al2O3) Composites Fabricated by Stir Casting
    PV Rajesh, K Vimal Raj, P Jothi Palavesan, S Vijayaragavan
    ICONNECT 6 (7) , 2018
    2018
    Citations: 2
  • experimental investigation of mechanical properties of aluminium alloy Al-6063 based hybrid metal matrix composite
    PV Rajesh, S Roseline
    Int. J. Adv. Eng. Res 11 (1), 10-17 , 2016
    2016
    Citations: 2
  • EXPERIMENTAL INVESTIGATION OF FEMTOSECOND LASER ABLATION AND MICRO-HOLE GEOMETRY IN Al6061/Al 2 O 3 COMPOSITES
    R Rekha, S Roseline, PV Rajesh, N Baskar
    Surface Review and Letters, 2550182 , 2025
    2025
    Citations: 1
  • Data-driven optimization on the workability and strength properties of M-30 grade concrete using MOORA
    A Anandraj, S Vijayabaskaran, PV Rajesh
    Computational Intelligence based Optimization of Manufacturing Process for … , 2023
    2023
    Citations: 1
  • Processing and Evaluation of Polymer Matrix Composites - Review
    PVR S.Mukundh, A.Prabhakaran, M. Rayees Ahmed, D. Saravana Kumar
    JASC: Journal of Applied Science and Computations 6 (4), 278-282 , 2019
    2019
    Citations: 1
  • Evaluation of Mechanical Properties and Machinability Analysis of Al 6061 Hybrid Composite
    PV Rajesh, MS Prasanth, VS Daniel, CM Saravanan
    International Journal of Multidisciplinary and Current Research 6 (2), 250-255 , 2018
    2018
    Citations: 1
  • Evaluation of mechanical properties of Al6061 Metal Matrix Composite Reinforced With Fused Zirconia Alumina
    PV Rajesh, S Roseline, V Paramasivam
    Int. J. Adv. Eng. Res 11 (1), 1-9 , 2016
    2016
    Citations: 1
  • Multi-attribute recursive optimization (MARO) for EDM of D3 tool steel
    R Rajasekaran, RP Venukrishnan, B Neelakandan, V Muthukrishnan
    Matéria (Rio de Janeiro) 30, e20240723 , 2025
    2025
  • Evaluation of Process Parameters and Combinatorial Optimization of Sustainable Bricks Reinforced with Waste Ashes
    SS P V Rajesh, Vigneshwar P, R D Krithik
    Annual Technical Volume: Innovations in Mechanical Engineering – Cutting … , 2025
    2025
  • Experimental investigation on fabrication and Machinability of aluminium Saw Dust ash composites (ASDAC)
    PV Rajesh, R Rekha, B Monika, RS Perumal, J Rufus, S Vijay
    Materials Today: Proceedings , 2024
    2024
  • Aras-Based Selection of Optimal Specimen among PRPs and Its Validation Using MVGFD
    PV Rajesh, MS Prasanth
    Decision-Making Models and Applications in Manufacturing Environments, 181-210 , 2024
    2024
  • Parametric Selection and Quantitative Optimization of Process Parameters in Milling Using HDD
    R Rekha, PV Rajesh, N Baskar, PJ Palavesam
    Sustainable Smart Manufacturing Processes in Industry 4.0, 245-261 , 2023
    2023