Article
Materials Science, Multidisciplinary
R. Mohanraj, S. Elangovan, S. Pratheesh Kumar
Summary: The aerospace, automobile and biomedical industries focus on innovative rapid manufacturing processes using magnesium AZ31 and aluminium 6061 alloy materials to enable product customization, cost reduction, and shorter manufacturing lead time. The warm incremental sheet forming process is an emerging forming technique capable of forming intricate, asymmetrical components at elevated temperatures. Experimental investigation on magnesium AZ31 and aluminium 6061 alloy materials revealed optimal formability and thickness reduction with minimum geometrical deviation under specific process parameters.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART L-JOURNAL OF MATERIALS-DESIGN AND APPLICATIONS
(2023)
Article
Mechanics
Farshad Kazemi, Ramin Hashemi, Seyed Ali Niknam
Summary: In this study, the forming limit diagram of AA5754/polyethylene/AA5754 sandwich composites was investigated experimentally and numerically. The effects of variation in thickness on the core and skin layers were examined numerically. The results showed that these sandwich composites can be used as a substitute for aluminum sheets.
MECHANICS BASED DESIGN OF STRUCTURES AND MACHINES
(2022)
Article
Chemistry, Multidisciplinary
Gillo Giuliano, Wilma Polini
Summary: This study presents a stretching process of a metal sheet with variable initial thickness and finite element model analysis. By controlling the trend of the sheet initial thickness, the distribution of strains in the sheet can be controlled, resulting in a lighter and more uniform final product compared to traditional processes with constant initial thickness. Experimentation on AA6060 aluminum alloy sheet confirms theoretical findings.
APPLIED SCIENCES-BASEL
(2021)
Article
Materials Science, Multidisciplinary
Anees Jaleel, Sathiya Narayanan
Summary: This paper investigates the impact of single point incremental forming (SPIF) on perforated SS 304 L sheet, optimizing input parameters, conducting finite element simulation, and analyzing fracture and wear. The experimental results show that the optimized process settings can achieve better forming outcomes, and tool hardening can reduce wear.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Mingxiang Zhang, Zheng Meng, Morteza Shariati
Summary: This study investigates the effect of microstructure on the formability of stainless sheet metals, particularly austenitic steels. The presence of strain-induced martensite in the microstructure of austenitic steels leads to hardening and reduced formability. Experimental and artificial intelligence methods are used to evaluate the formability of AISI 316 steels with different intensities of martensite. The results show that cold rolling negatively affects the formability of the stainless steels but significantly strengthens the sheets. The artificial neural fuzzy interfere system (ANFIS) exhibits satisfactory results in predicting major strains compared to experimental measurements.
SCIENTIFIC REPORTS
(2023)
Article
Automation & Control Systems
Rui Zhang, Zhong-Jin Wang
Summary: The potential of sheet forming using flexible-dies is presented, and a new method using magnetorheological elastomer (MRE) is proposed. The performance behavior of MRE can be adjusted under different magnetic fields to increase the forming limits of the sheet metal.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Tushar R. Dandekar, Amit Kumar, Rajesh K. Khatirkar, Deepak Kumar, Satyam Suwas
Summary: The effect of microstructure and texture on the evolution of mechanical properties during recrystallization in cold rolled UNS S32101 lean duplex stainless steel sheet was investigated. The results showed that the microstructure changed from lamellar to near globular as the annealing time increased. The crystallographic texture weakened after recrystallization, leading to a decrease in hardness and stored energy.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Engineering, Manufacturing
Malik Hassan, Ghulam Hussain, Aaqib Ali, Muhammad Ilyas, Sohail Malik, Wasim A. Khan, Burak Bal
Summary: This research aimed to investigate the impact of pre-rolling temperature on interfacial properties and formability of Steel-Steel bilayer sheet prepared by roll bonding. The results showed that increasing pre-rolling temperature enhanced bond strength and CSERR, as well as improving formability. Additionally, a consistent relationship between formability and interfacial parameters was observed.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE
(2021)
Article
Engineering, Industrial
Ruiqiang Zhang, Zhusheng Shi, Victoria A. Yardley, Jianguo Lin
Summary: In this study, a high temperature modification of a recently developed biaxial test method has been used to determine the forming limit curves (FLCs) and fracture forming limit curves (FFLCs) for 22MnB5 boron steel sheet. Full-field strain measurements obtained through digital image correlation (DIC) provide an experimental foundation for constructing these curves in industrial applications.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2022)
Article
Construction & Building Technology
Hao Wang, Zhangli Hu, Ting Yao, Hua Li, Zhen Li, Jiaping Liu
Summary: This study proposes sophisticated methods for quantifying the gradient properties and their evolution of the Steel-Concrete Interface (SCI) using back-scattered electron (BSE) imaging and nano-indentation. The gradient of SCI is identified through robust statistical analysis. A distinct stratification structure of SCI is discovered, which can be demonstrated from the grayscale of BSE as well as the indentation modulus and hardness. The thickness of SCI increases with age and the increasing rates roughly decline with the increase of w/c. SCI can be divided into highly porous layer I and transition layer II based on the hierarchically porosity. The layer II is further subdivided into II(a) and II(b) based on the gradient of mechanical properties, mainly caused by the spatial distribution of cement particles within SCI.
CEMENT & CONCRETE COMPOSITES
(2023)
Article
Automation & Control Systems
Iliass El Mrabti, Khalid Bouziane, Abdelhamid Touache, Abdelhadi El Hakimi, Abderrahim Chamat, Abdelmajid Daya
Summary: Considering the high demand for aluminum and advanced high-strength steel in automotive and aerospace industries, this study investigates the formability of these materials and their comparison with mild steel. It establishes a finite element model for numerical simulation and uses Taguchi design and ANOVA method to identify the significant parameters in the deep drawing process.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Engineering, Civil
Quoc Tuan Pham, Md Shafiqul Islam, Alexander Barlo, Mats Sigvant, Lluis Perez Caro, Kristoffer Trana
Summary: This study proposes a modeling approach to predict strain localization in sheet metal stamping processes in automotive engineering. The stretching-to-bending ratio, rho, is introduced to characterize the loading conditions, and localized strain is suggested to be a function of rho. Stretch-bending tests are conducted for two automotive sheet metals, DP800 and AA6010, with different tool radii to determine their forming limits. The proposed modeling approach is validated by predicting necking and failure positions of a stamped panel using the calibrated necking limit curve.
THIN-WALLED STRUCTURES
(2023)
Review
Materials Science, Multidisciplinary
Koh-ichi Sugimoto
Summary: Partial replacement of Si by Al improves the coatability of Si-Mn advanced high-strength steel sheets. It decreases the tensile ductility and stretch formability, but achieves the same excellent stretch-flangeability in high-strength steel sheets with a tensile strength above 1.2 GPa.
Article
Chemistry, Applied
Dawei Zhang, Ying Huang
Summary: Thinner bondlines and higher CNT additions can significantly enhance the bonding performances and modify the failure mode of CNT-reinforced epoxy adhesively bonded joints. However, the effects of adhesive thickness become less significant with the increase of CNT weight fractions. Moreover, scanning electron microscopy (SEM) analysis shows the potential effectiveness of CNT reinforcement in improving the bonding performances.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Engineering, Manufacturing
Pavan Kumar, Puneet Tandon
Summary: This paper investigates the process capabilities of CP-Ti Grade-2 in warm incremental sheet forming, analyzing its formability and predicting component fracture through experiments and Finite Element simulations.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE
(2021)
Article
Engineering, Manufacturing
Jacob John, S. P. Shanmuganatan, M. B. Kiran, V. S. Senthil Kumar, R. Krishnamurthy
Summary: This study utilized aluminum 2014-T6 alloy for friction stir processing and evaluated its formability through single-pass and multi-pass processes. The results show that multi-pass processed samples exhibited the best formability, followed by single-pass processed samples, and the unprocessed samples showed the lowest formability.
MATERIALS AND MANUFACTURING PROCESSES
(2021)
Article
Materials Science, Multidisciplinary
C. Rathinasuriyan, V. S. Senthil Kumar, V Savitha
Summary: This study compares the mechanical and metallurgical properties of friction stir welding with traditional welding processes, analyzing the failure load, tensile shear strength, and microstructures of the welded joints. By conducting various tests on the welded joints, the advantages and disadvantages of different processes can be evaluated.
ADVANCES IN MATERIALS AND PROCESSING TECHNOLOGIES
(2022)
Article
Energy & Fuels
A. Senthil Kumar, L. Karthikeyan, Sulaiman Ali Alharbi, Saleh H. Salmen
Summary: The trend of using alternative fuels to tackle fossil fuel depletion has been on the rise. Overuse of fossil fuels due to rapid population growth and industrialization has led to a shortage of fossil fuels. As a result, many alternative fuels have been discovered and used as effective replacements in terms of combustion and emission performance characteristics. In this research, the importance and characteristics of noise and vibration of test fuels derived from watermelon seeds were discussed. Experimental tests were conducted on a diesel engine, and the results showed that higher proportions of biodiesel led to lower noise and vibration levels.
JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME
(2023)
Article
Computer Science, Artificial Intelligence
A. Mystica, V. S. Senthil Kumar, B. Sakthi Abirami
Summary: This study uses Taguchi design and analysis of variance techniques to predict the output responses of friction stir welded AA2014 alloy using fuzzy logic models. The results show that rotational speed and transverse speed have a significant influence on ultimate tensile strength, microhardness, and grain size. The developed models are highly efficient.
JOURNAL OF INTELLIGENT & FUZZY SYSTEMS
(2022)
Article
Chemistry, Physical
R. Sankar, C. Rathinasuriyan, M. Puviyarasan, V. S. Senthil Kumar
Summary: This study investigated the friction stir processing of AZ31B plates in different environments and found that cryogenic medium achieved grain refinement and increased tensile strength. Surface hardening significantly improved the friction and wear behavior of magnesium.
SURFACE REVIEW AND LETTERS
(2022)
Article
Energy & Fuels
Yuchen Liu, V Meenakshi, L. Karthikeyan, Josef Marousek, N. R. Krishnamoorthy, Manigandan Sekar, Omaima Nasif, Sulaiman Ali Alharbi, Yingji Wu, Changlei Xia
Summary: Air transport plays a significant role in global development, but the high emissions from the aviation industry pose a problem. This study investigates the performance and emission characteristics of a micro gas turbine engine under different fuel conditions, and applies machine learning techniques to analyze the effects of biofuel blends.
Article
Materials Science, Multidisciplinary
J. V. Tilak Kumar, S. Jayaprakasam, V. S. Senthil Kumar, K. A. Padmanabhan, A. Frolova, V Stolyarov
Summary: Electroplastic rolling was used to produce nanostructured NiTi alloy from a coarse grained NiTi nugget. The microstructure of the alloy was characterized and the alloy showed conventional tensile behavior with high ultimate tensile strength and low elongation to failure. The role of grain size in deformation and fracture features was also discussed.
LETTERS ON MATERIALS
(2022)
Article
Engineering, Chemical
A. Mystica, Senthil V. S. Kumar, K. A. Padmanabhan
Summary: In this study, the microstructural evolution of AA2014 alloy friction stir welded joint under uniaxial tensile load was investigated using electron backscatter diffraction. It was found that the grains underwent discontinuous dynamic recrystallisation during the friction stir welding process and continuous dynamic recrystallisation during tensile deformation. Tensile deformation significantly reduced local grain misorientation, increased grain size, and had a significant impact on the mechanical properties of the weld.
JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
C. Rathinasuriyan, R. Sankar, V. S. Senthil Kumar
Summary: The purpose of this study is to investigate the effect of shot peening on the mechanical characteristics of Submerged Friction Stir Welding (SFSW) welded plates on AA6061-T6 alloy. SFSW was performed under three cooling mediums, and shot peening was applied to the welded samples. Tensile test and hardness analysis were conducted, and the results showed that shot peening had a significant impact on the mechanical properties of the welded samples.
SURFACE REVIEW AND LETTERS
(2023)
Article
Metallurgy & Metallurgical Engineering
A. Mystica, V. S. Senthil Kumar
Summary: Excessive heat generated during friction stir welding (FSW) causes dissolution of precipitates and reduces the joint quality of AA2014 alloy. To dissipate the unwanted heat, minimum quantity lubrication (MQL) technique is used, with a graphene nanofluid prepared using two-step method as the coolant. The effects of different thermal cycles on grain structure and precipitation are investigated, and it is found that the formation of precipitate free zones can be eliminated by appropriate combinations of rotational speed and welding speed. The development of stable theta precipitates through n-MQL leads to higher weld properties, with the favorable process window established at a rotational speed of 1200 r/min and welding speed of 72 mm/min.
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2023)
Article
Engineering, Chemical
K. Raman, V. S. Senthil Kumar
Summary: Friction stir processing has a significant impact on the mechanical properties and surface quality of AA2024. The optimal process parameters were found to be a rotational speed of 1000 rpm, a traverse speed of 45 mm/min, and an axial load of 10.25 kN.
JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY
(2023)
Review
Chemistry, Physical
A. Mystica, V. S. Senthil Kumar, C. Rathinasuriyan
Summary: This paper discusses the negative impact of welding on the environment and worker health, and introduces a green welding technology called Friction Stir Welding. Friction Stir Welding is an energy-efficient process that produces welds with better mechanical and metallurgical properties. The paper also explores the effects of different cooling techniques on the welding process and the resulting changes in weld properties.
SURFACE REVIEW AND LETTERS
(2023)
Article
Engineering, Manufacturing
T. Mayavan, L. Karthikeyan, B. Balamugundan, V. S. Senthil Kumar
Summary: This study analyzed the formability of low and high tensile strength tailor-welded blanks and found the predominant factor affecting failure. Finite element simulation was used to predict the formability characteristics of the tailored blanks.
INTERNATIONAL JOURNAL OF MANUFACTURING MATERIALS AND MECHANICAL ENGINEERING
(2022)
Proceedings Paper
Materials Science, Multidisciplinary
C. Rathinasuriyan, Sumathy Muniamuthu, A. Mystica, V. S. Senthil Kumar
Summary: This paper investigated the heat generation based on torque in submerged friction stir welding of 6061-T6 aluminum alloy at different rotational speeds. Torque plays a significant role in the FSW process due to its direct relationship with the coefficient of friction, power, and heat input. The study provides insights into the effects of submerged FSW on aluminum alloy welding.
MATERIALS TODAY-PROCEEDINGS
(2021)
Proceedings Paper
Materials Science, Multidisciplinary
C. Rathinasuriyan, A. Mystica, R. Sankar, V. S. Senthil Kumar
Summary: The study investigated the effects of submerged friction stir processing in different mediums, with findings showing that processing submerged in coolant oil results in lower peak temperatures. Water cooling led to lower tensile strength compared to brine solution and coolant oil, with impacts on hardness and other parameters.
MATERIALS TODAY-PROCEEDINGS
(2021)