Article
Chemistry, Physical
Jing Ni, Xiaotian Zeng, M. S. H. Al-Furjan, Huijun Zhao, Liming Guan, Zhi Cui, Lidong Han
Summary: This paper investigates the drilling performance of polytetrafluoroethylene (PTFE). It suggests that higher spindle speeds with lower feed rates are ideal parameters for improving the drilling performance and machining quality of PTFE. The temperature differences due to different drilling depths and chip accumulation influence surface roughness inconsistencies at various locations in the inner wall of the hole.
Article
Chemistry, Analytical
Cagin Bolat, Ucan Karakilinc, Bekir Yalcin, Yahya Oz, Caglar Yavas, Berkay Ergene, Ali Ercetin, Fatih Akkoyun
Summary: This study aims to investigate the drilling characterization of Carbon Fiber-Reinforced Plastics (CFRPs) with different drilling parameters and cutting tools. The results show that the optimal drilling conditions are a cutting speed of 45 m/min and feed rate of 0.05 mm/rev using a type II drill with a 120° point angle and 5 mm diameter, as well as a cutting speed of 30 m/min and feed rate of 0.05 mm/rev using a type II drill with a 120° point angle and 3 mm diameter.
Article
Automation & Control Systems
Nafiz Yasar, Mehmet Erdi Korkmaz, Munish Kumar Gupta, Mehmet Boy, Mustafa Gunay
Summary: In the aviation and structural industries, the requirement for smooth holes is a critical safety issue, as the quality of holes can affect the fatigue strength of structures. This study successfully minimized limitations in the machining of carbon fiber-reinforced composite (CFRP)/Ti6Al4V alloy stack material and addressed the delamination problem that may occur in composite laminates by optimizing cutting conditions and selecting appropriate cutting tools.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Materials Science, Composites
Cristiano Devitte, Andre J. Souza, Heraldo J. Amorim
Summary: This study analyzes the impact of cutting speed and cooled compressed air on the drilling process of GFRP/Ti-6Al-4V hybrid stack. The results show that increasing cutting speed and using cooled air can significantly reduce thrust force and delamination, and also influence hole-wall roughness and roundness error. It allows higher productivity without increasing defects in the GFRP/Ti hybrid stack drilling.
APPLIED COMPOSITE MATERIALS
(2023)
Article
Materials Science, Textiles
Burak Ozdemir, Ahmet Yardimeden, Erkan Bahce, Erol Kilickap, Ender Emir
Summary: In this study, the effects of thrust force, vibration, and temperature changes on hole quality were investigated for natural jute composite materials. The statistical analysis using ANOVA method revealed that feed had a significantly greater impact on thrust force compared to spindle speed. Vibration was found to be largely affected by feed, while temperature was influenced by both feed and speed. Additionally, it was observed that roughness was mainly influenced by speed, vibration, and temperature.
JOURNAL OF NATURAL FIBERS
(2023)
Article
Mechanics
Linghao Kong, Dong Gao, Yong Lu
Summary: This paper discusses the common damages in CFRP drilling and proposes a new ODR tool to reduce processing damages effectively. Experiments show that machining with the ODR tool results in less thrust force and fewer damages compared to end mills.
COMPOSITE STRUCTURES
(2021)
Article
Chemistry, Physical
Vigneshwaran Shanmugam, Uthayakumar Marimuthu, Sundarakannan Rajendran, Arumugaprabu Veerasimman, Adamkhan Mahaboob Basha, Mohd Shukry Bin Abdul Majid, Rasoul Esmaeely Neisiany, Michael Forsth, Gabriel Sas, Seyed Mohammad Javad Razavi, Oisik Das
Summary: The study focused on the drilling performance of a hybrid composite material filled with redmud and reinforced with sisal fiber in a polyester matrix. Experimental results showed that spindle speed had a 39% influence on thrust force, while feed rate had the greatest impact of approximately 38% on delamination.
Article
Acoustics
Dongxi Lv, Mingda Chen, Youqiang Yao, Chun Yan, Gang Chen, Yingdan Zhu
Summary: Increased thickness of CFRP plate affects coolant flow velocity, leading to residual chips accumulation causing friction effects and thermal load increase, resulting in chips adhesion on tool surface and workpiece jamming.
Article
Automation & Control Systems
Mohammad Baraheni, Mohammad Reza Shabgard, Saeid Amini
Summary: By comparing conventional drilling with vibratory drilling, the study found that ultrasonic vibration drilling can reduce thrust force and the generation of broken chips, resulting in improved surface quality parameters for additive manufactured poly lactic acid (+).
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Automation & Control Systems
M. A. Moghaddas
Summary: This study characterized the ultrasonic-assisted drilling process of Aluminum 6061 using a special experimental design and response surface methodology, analyzing the effect of drilling parameters on thrust force, torque, and surface roughness to determine the optimal drilling parameters. Results showed that in aluminum drilling, the minimum values of thrust force and torque were obtained at low spindle speed, low feed rate, and high amplitude, while minimum surface roughness was obtained at high spindle speed, low feed rate, and high amplitude. The adequacy of the mathematical models was verified through out-of-sample testing.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Engineering, Mechanical
Abdallah Abdelkawy, Hassan El-Hofy
Summary: Ultrasonic-Assisted Drilling is introduced to achieve smooth surface and accurate geometrical tolerances for soda glass applications. The experiments show that high feed rate increases surface roughness while high tool concentration can reduce it, demonstrating that lower feed rate, high spindle speed, and high tool concentration are the optimum conditions for improving surface and geometrical measures.
JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING
(2021)
Article
Engineering, Multidisciplinary
Raju Kumar Thakur, Kalyan Kumar Singh
Summary: The objective of this study is to investigate the impact of various wt% of graphene nanoplatelets, spindle speed (SS), and feed rate (FR) on damages caused by drilling GFRP laminates. The results showed that when the concentration of graphene reaches 0.25 wt%, it enhances the mechanical properties of the composite. However, further increase in graphene concentration leads to a decrease in mechanical properties. Experiments demonstrated that the ILSS, flexural strength, and tensile strength of the 0.25 wt% graphene-embedded composite increased by 18.49%, 25.15%, and 14.79% respectively compared to neat GFRP composite. Moreover, optimal machining performances were achieved in the 0.25 wt% graphene-embedded GFRP composite with minimum surface roughness, thrust force, torque, entry delamination factor, and exit delamination factor. Increase in SS and decrease in FR contributed to the optimization of composite machining performances. Furthermore, FESEM was employed to examine the damage on the drilled surfaces.
Article
Automation & Control Systems
Guangjun Chen, Jinkai Xu, Jingdong Wang, Ying Li, Jiaqi Wang, Huadong Yu
Summary: This study investigated the micro-hole machining of difficult-to-process materials using ultrasonic-assisted drilling technology. It was found that this technology can improve machining performance, reduce thrust force, and enhance surface quality.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Automation & Control Systems
Wang Shuaipu, Liang Jie
Summary: A variable feed drilling method based on a sinusoidal curve is proposed to reduce delamination damage and improve drilling quality in CFRP drilling. Experimental results show that this method can reduce the thrust force near the hole exit and improve surface quality and hole wall morphology.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Engineering, Manufacturing
Mete Kayihan, Umut Karaguzel, Mustafa Bakkal
Summary: This study investigated the effect of process parameters and stack order on cutting force and torque of CFRP materials. The results showed that the stacking order had the most significant impact on thrust force and torque values during drilling.
MATERIALS AND MANUFACTURING PROCESSES
(2021)
Article
Materials Science, Multidisciplinary
Din Bandhu, E. Venugopal Goud, Jay J. Vora, Subhash Das, Kumar Abhishek, Ramendra Kumar Gupta, Ashish Thakur, Soni Kumari, K. Devaki Devi
Summary: This study performed butt welding experiments using the processes of resistance metal powder welding (RMD) and gas metal arc welding (GMAW), and conducted macroscopic and microscopic analysis of the welds. The results showed that RMD welding produced better weld quality, smaller heat-affected zone, and finer grain refinement.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Chemistry, Physical
Panchanand Jha, G. Shaikshavali, M. Gowri Shankar, M. Dinesh Sai Ram, Din Bandhu, Kuldeep K. Saxena, Dharam Buddhi, Manoj Kumar Agrawal
Summary: In metal-cutting operations, the surface roughness of the end product is important for both aesthetic appearance and long-term performance. Surface finish affects the endurance limits and stresses of the product during mechanical operations. Surface roughness depends on machining factors, and predicting it can help reduce costs and increase product life. This study evaluates the surface roughness of AZ91 alloy during end milling using ensemble learning models, and proposes a hybrid ensemble model that combines random forest, gradient boosting, and a deep multi-layered neural network. Comparative analysis shows that the proposed hybrid model has the lowest error for surface roughness.
SURFACE REVIEW AND LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Amit Muchhadiya, Soni Kumari, Din Bandhu, Kumar Abhishek, Jay J. Vora
Summary: The study aims to determine the best FSW parameter for HDPE sheet weld joints. The rotational speed, transverse speed, and tilt angle of the tool were considered as control parameters. Experiments were planned using Taguchi's L16 design. The most significant control parameter was evaluated using analysis of variance methodology. Grey relational analysis was applied to optimize the FSW control variables, and the integration of Grey concept and fuzzy system was explored to analyze the optimal welding combination. Both optimization routes resulted in identical outcomes for parametric optimization, with a tool rotation speed of 1070 rpm, a tool traverse speed of 20 mm/min, and a tool tilt angle of 2 degrees identified as the favorable welding conditions, and the tool rotation speed as the most influential control parameter.
Article
Engineering, Chemical
G. Praveen Kumar Yadav, Din Bandhu, B. Vijay Krishna, Nakul Gupta, Panchanand Jha, Jay J. Vora, Subhash Mishra, Kuldeep Kumar Saxena, Karrar Hazim Salem, Sherzod Shukhratovich Abdullaev
Summary: This study investigates the potential benefits of gas metal arc (GMA) welding for ASME SA387-Gr.11-Cl.2 steel and emphasizes the importance of humane and environmentally friendly welding techniques. Metal-cored filler wire (MCFW) was used to weld 6 mm thick ASME SA387-Gr.11-Cl.2 steel plates, with optimal welding conditions achieved at 100 A, 13 V, and 21 L/min for current, voltage, and gas flow rate, respectively. Visual inspection confirmed the absence of surface defects, and macroscopic metallography analysis confirmed satisfactory weld bead geometry (WBG). Microstructural analysis and microhardness measurements were conducted, and heat treatment was applied to the welded plates for comparison. The study findings demonstrate the successful application of metal-cored filler wire in achieving desired weld characteristics and highlight the importance of considering both technical requirements and environmental considerations in welding processes.
JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Manufacturing
Ajay R. Bhardwaj, A. M. Vaidya, P. D. Meshram, Din Bandhu
Summary: The aim of this study is to investigate the impact of input factors on output response in the dry turning process of AA-6061. The input factors include spindle speed, feed rate, and depth of cut, while the output responses are surface roughness and metal removal rate. The study used the Box-Behnken design of response surface methodology to create experimental designs and mathematical models, and applied the desirability-function approach of RSM to obtain optimal input factor values. The findings showed the significant effects of the input factors on the output responses for different compositions of AA-6061. The proposed models were validated through confirmation tests. The study's outcomes can be applied in manufacturing industries to optimize machining processes and reduce production costs.
INTERNATIONAL JOURNAL OF INTERACTIVE DESIGN AND MANUFACTURING - IJIDEM
(2023)
Article
Materials Science, Multidisciplinary
Soni Kumari, Din Bandhu, Amit Muchhadiya, Kumar Abhishek
Summary: Friction stir welding (FSW) of polymers and composites has attracted significant attention in recent years. Efforts have been made to explore current trends and optimize FSW processing settings for better joint efficiency. The application of ANOVA in analyzing the parametric effect of welding factors has been highlighted. Further research is needed to address the issue of holes as defects in FSW. This review study also provides recommendations for tool setup, microstructure analysis, and best practices.
ADVANCES IN MATERIALS AND PROCESSING TECHNOLOGIES
(2023)
Article
Materials Science, Multidisciplinary
J. Nagendra, G. Praveen Kumar Yadav, R. Srinivas, Nakul Gupta, Din Bandhu, Ashish Fande, Kuldeep Saxena, Faramarz Djavanroodi, S. Saadaoui, Amjad Iqbal, Mehmet Sukru Adin, Nittala Noel Anurag Prashanth
Summary: This study investigates the progress made in developing environmentally friendly techniques for shaping CFRP composites, with a focus on the impact of machining, tools, monitoring, and cooling techniques on the material.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2023)
Article
Engineering, Mechanical
Abdulsattar Abdullah Hamad, Faris Maher Ahmed, C. Labesh Kumar, Sumalatha Donipati, Talluri Sreekrishna, Din Bandhu, Bathina Rajesh Kumar, Alnoman Mundher Tayyeh
Summary: The scientific community is increasingly interested in novel, affordable, biodegradable materials made from renewable resources. Cellulosic nanocomposites have shown promise due to their ability to combine properties of different materials. This study focuses on adding magnetite nanoparticles and multi-walled carbon nanotubes to cellulosic materials for electromagnetic shielding. The addition of nanoparticles improves the properties of the paper, and the nanocomposites have potential for technological applications.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING
(2023)
Review
Materials Science, Multidisciplinary
Ashish Thakur, Din Bandhu, D. R. Peshwe, Y. Y. Mahajan, Kuldeep K. Saxena, Sayed M. Eldin
Summary: This article summarizes the crucial role of MgAl2O4 particles in Al matrix composites, which have evolved from being a product at the matrix-reinforcement interface to a separate reinforcement. It also reviews the recent developments of MgAl2O4 formation in Al-Mg-Al2O3 and Al-Mg-SiC composites, as well as its impact on surface morphology and mechanical characteristics. Furthermore, it discusses the grain refinement process obtained using MgAl2O4 as a heterogeneous nucleating agent in Al alloys.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
G. Suresh Kumar, Athota Rathan, Din Bandhu, B. Madhusudhan Reddy, H. Raghavendra Rao, Sujeeth Swami, Kuldeep K. Saxena, Sayed M. Eldin, Nittala Noel Anurag Prashanth
Summary: This research investigates the utilization of coir and hemp fibers as reinforcements in a polyester-based hybrid composite system, and finds that the mechanical properties of the fabricated composites are enhanced as the proportion of coir fiber increases and the proportion of hemp fiber decreases. Thermo-gravimetric analysis confirms the thermal stability of the composite materials, while Fourier Transform InfraRed Spectroscopy and Scanning Electron Microscopy provide valuable insights into the chemical composition and surface morphology of the composites, respectively.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Manufacturing
G. Praveen Kumar Yadav, Yagya Dutta Dwivedi, M. Lava Kumar, Pankaj Sonia, Din Bandhu, J. Nagendra, Mayada Ahmed Abass
Summary: This study examines a rectangular chambered muffler model of a Mahindra Maximo C.I. engine through computational fluid dynamics simulations. Two reactive-type muffler designs, one without perforations and one with perforations, are compared, and it was found that the perforated muffler model exhibits a higher transmission loss than the non-perforated muffler model, thereby establishing its superiority.
INTERNATIONAL JOURNAL OF INTERACTIVE DESIGN AND MANUFACTURING - IJIDEM
(2023)
Article
Engineering, Multidisciplinary
Soni Kumari, Rakesh Gupta, Gopal Krishna, Kumar Abhishek, Naveenkrishna Alla, Kuldeep Kr. Saxena
Summary: Manufacturing and production have experienced rapid development through the combination of additive manufacturing (AM) and other digitally driven machines, creating hybrid additive manufacturing (hybrid-AM). However, hybrid-AM has not gained industrial acceptance due to certain limitations. This article provides the latest information on hybrid-AM, discussing research trends, challenges, and future directions for development.
INNOVATION AND EMERGING TECHNOLOGIES
(2023)
Article
Engineering, Multidisciplinary
Soni Kumari, Kumar Abhishek, Din Bandhu, B. D. Y. Pardeep, B. D. Y. Sunil, Manish Gupta
Summary: In the realm of manufacturing, the use of hybrid manufacturing, which combines additive manufacturing with other digitally driven machines, has led to high-speed production. However, the acceptance of hybrid AM within the industry has been limited due to various constraints. To address this, recent developments in integration of AM processes, improved integrated technical planning, and understanding the mixed supplement production industry are crucial. Emphasizing advances in these areas is essential to meet the demands of a rapidly evolving manufacturing sector.
INNOVATION AND EMERGING TECHNOLOGIES
(2023)
Letter
Immunology
Megha Sharma, Karikalan Mathesh, Premanshu Dandapat, Asok Kumar Mariappan, Ravi Kumar, Soni Kumari, Vivek Kapur, Sushila Maan, Naresh Jindal, Nitish Bansal, Riyaz Kadiwar, Abhishek Kumar, Nitin Gupta, A. M. Pawde, A. K. Sharma
EMERGING INFECTIOUS DISEASES
(2023)