Article
Engineering, Multidisciplinary
Ce Guo, Dongliang Zhang, Xiuhong Li, Jing Liu, Feng Li
Summary: By developing a novel permanent magnet tool and using ultrasonic vibration, the surface quality of hydraulic cylinder grooves can be improved. The characteristics of the permanent magnet tool in UAMAF were verified through experimental measurements, and it was found that ultrasonic vibration slightly weakens the magnetic field intensity. Under UAMAF processing, the surface quality of grooves parts is significantly better than MAF processing, with a more uniform and lower surface roughness.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Fujian Ma, Ziguang Wang, Yu Liu, Zhihua Sha, Shengfang Zhang
Summary: Titanium alloys, known for their low density, high strength, high-temperature resistance, and corrosion resistance, are widely used in aerospace, the military industry, electronics, automotive fields, etc. This research introduces ultrasonic-assisted magnetic abrasive finishing (UAMAF) for high-quality and high-efficiency finishing of titanium alloys.
Review
Automation & Control Systems
Cheng Qian, Zenghua Fan, Yebing Tian, Yanhou Liu, Jinguo Han, Jinhui Wang
Summary: Magnetic abrasive finishing (MAF) is an advanced nano-finishing technology that has drawn much attention for achieving high-quality surface for superalloys, composites, and ceramics. This paper provides a comprehensive review on MAF process, covering principles, tool design, modeling, and challenges in the field.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Automation & Control Systems
Qiuyan Wang, Moiz Sabbir Vohra, Shuowei Bai, Swee Hock Yeo
Summary: This study proposed a rotary ultrasonic-assisted abrasive flow finishing (RUA-AFF) method to improve the performance of the AFF process. Experimental results showed that higher ultrasonic vibration amplitude led to better surface quality and increased material removal rate (MRR); higher ultrasonic frequency and rotational speed slightly decreased surface roughness and MRR. There are two material removal modes in the RUA-AFF process, indicating efficient and high-quality finishing of Al6061.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Engineering, Mechanical
Mahmut Celik, Hakan Gurun, Ulas Caydas
Summary: This study aims to remove the white layer formed on the surface of a titanium alloy using the Magnetic Abrasive Finishing method. The research shows that by varying the machining parameters, the white layer thickness can be significantly reduced, with ultrasound support having a positive effect.
SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES
(2022)
Article
Automation & Control Systems
Xinjian Zhang, Xudong Zhao, Bo Cheng, Yu Wang, Qiang Song, Chunzhi Zhang, Wensheng Li, Uladzimir Seniuts, Marat Belotsrkovsky, Zhornik Viktor
Summary: This paper presents the design of a core-shell structured magnetic abrasive particles (MAPs) and develops a processing roughness model based on indentation theory. By clarifying the evolution of the MAF mechanism, high efficiency and precision on slender tube surfaces are achieved.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Automation & Control Systems
Xu Sun, Yongjian Fu, Wei Lu, Wei Hang
Summary: The electrochemical magnetic abrasive finishing (EMAF) process is a hybrid machining method that can improve machining efficiency while maintaining lower surface roughness. By forming and removing passive films, the finishing of the workpiece surface is achieved in EMAF process.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Acoustics
Yahya Choopani, Mohammad Reza Razfar, Mohsen Khajehzadeh, Mohammadreza Khosrojerdi
Summary: This study proposes the ultrasonic assisted-rotational magnetorheological abrasive flow finishing (UA-RMRAFF) process as a solution to the challenges of the rotational-magnetorheological abrasive flow finishing (R-MRAFF) process. Experimental results show that the UA-RMRAFF process provides a uniform and fine surface finish, increases material removal, and performs surface modification faster than the R-MRAFF process.
Article
Automation & Control Systems
Abbas Moghanizadeh, Fakhreddin Ashrafizadeh, Maziyar Bazmara
Summary: The novel approach of magnetic abrasive finishing enhances the potential for creating different finishing patterns on free-form surfaces without using special fixtures or tool machines. By utilizing a transmission magnetic field, the method allows the creation of various surface roughness patterns simultaneously in different directions. The experiments reveal a direct relationship between changes in surface roughness and electric current and process time.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Engineering, Manufacturing
Nitin Dixit, Varun Sharma, Pradeep Kumar
Summary: The Ultrasonic-assisted magnetic abrasive flow machining (UAMAFM) process improves finishing performance by utilizing external ultrasonic and magnetic field assistance. Mathematical models were developed to analyze both steady-state and transient material removal and surface roughness. The predicted values from the mathematical models showed good agreement with experimental results.
JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME
(2022)
Article
Engineering, Manufacturing
Nitin Dixit, Varun Sharma, Pradeep Kumar
Summary: In this study, an advanced variant of abrasive flow machining (AFM) called ultrasonic-assisted magnetic abrasive flow machining (UAMAFM) was developed. The effects of external assistances, machine, and media-based parameters on material removal and surface roughness improvement were analyzed. Optimized process parameters were determined to achieve maximum material removal and surface roughness improvement. Predictive models based on statistical analysis were also developed.
MATERIALS AND MANUFACTURING PROCESSES
(2023)
Article
Automation & Control Systems
Liaoyuan Wang, Yuli Sun, Guiguan Zhang, Pengfei Wu, Yebin Sun, Dunwen Zuo
Summary: A preparation method for nanoparticle-enhanced bonded magnetic abrasive (NEBMA) was proposed and its morphology and composition were analyzed. The novel NEBMA showed higher finishing efficiency and longer lifespan compared to conventional bonded magnetic abrasives. The surface roughness of 3D printed AlSi10Mg, aluminum alloy A12A, aluminum alloy 7075, and 304 stainless steel could be significantly reduced using NEMBA as a tool.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Review
Engineering, Mechanical
Adriel Magalhaes Souza, Eraldo Jannone da Silva, Jason Ratay, Hitomi Yamaguchi
Summary: This study evaluates the scientific production and identifies future directions of magnetic field-assisted finishing based on bibliometric analysis. The results show a rising trend in this field over the past ten years, conducted mainly by researchers from China, India, and the United States, with applications in tooling, aerospace, and biomedical industries.
JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING
(2022)
Article
Engineering, Electrical & Electronic
Yanhua Zou, Ryunosuke Satou, Ozora Yamazaki, Huijun Xie
Summary: A new finishing process combining magnetic abrasive finishing and fixed abrasive polishing has been proposed, which can achieve high-efficiency finishing of brittle hard materials and nano-scale surfaces. The experimental results show significant improvement in surface roughness of alumina ceramic plates after 30 minutes of processing.
Article
Engineering, Mechanical
Yesha Ni, Yunfeng Tan, Dapeng Tan
Summary: A two-phase fluid multi-physics modeling method for ultrasonic-assisted soft abrasive flow processing is proposed in this study to improve the low efficiency of the soft abrasive flow method. The acoustic-fluid coupling mechanic model is built to analyze the cavitation effect. The simulation results show that the ultrasonic vibration can induce cavitation and promote the turbulence intensity and uniformity of the abrasive flow.
CHINESE JOURNAL OF MECHANICAL ENGINEERING
(2023)
Article
Thermodynamics
Theodoros Marinopoulos, Lorenzo Zani, Simin Li, Vadim V. Silberschmidt
Summary: Modern developments in biomedical applications require a better understanding of the mechanical behavior of soft biological tissues. This study focuses on numerical simulation parameters for modeling the indentation of a human lower limb, and evaluates the effect of boundary conditions on the model size. The results show a high sensitivity of reaction forces to the direction of indentation misalignments. The research aims to improve our understanding of the mechanical behavior of soft tissues based on numerical methods, supporting the analysis of their mechanical properties and the development of orthopedic and medical procedures.
CONTINUUM MECHANICS AND THERMODYNAMICS
(2023)
Article
Thermodynamics
Dan-Andrei Serban, Gabriel Furtos, Liviu Marsavina, Corina Sosdean, Radu Negru
Summary: This work investigates the mechanical behavior of composite materials consisting of fly ash-based geopolymer reinforced with wood fibers under compressive and flexural loadings, and calibrates constitutive models for the geopolymer using experimental data.
CONTINUUM MECHANICS AND THERMODYNAMICS
(2023)
Article
Engineering, Manufacturing
Amirpasha Moetazedian, James Allum, Andrew Gleadall, Vadim V. Silberschmidt
Summary: This study analyzes the influence of extrusion temperature, printing speed, and layer time on the mechanical performance of interlayer bonds in material extrusion additive manufacturing (MEAM). The results show that the microscale geometry plays a crucial role in interlayer bond strength compared to thermal factors. By designing specific specimens, bulk-material strength can be achieved for interlayer bonds in MEAM.
3D PRINTING AND ADDITIVE MANUFACTURING
(2023)
Article
Engineering, Mechanical
Theodosios Stergiou, Konstantinos P. Baxevanakis, Anish Roy, Vadim V. Silberschmidt
Summary: In this study, the ballistic performance and failure mechanisms of thin aluminium targets impacted by plate-like, non-axisymmetric projectiles with different geometries were experimentally investigated. The failure mechanisms of the target material were strongly influenced by the projectile's geometrical features, and the local target's response was found to be an unreliable predictor of the critical kinetic energy for penetration. To improve the prediction of ballistic performance, a nonlocal target behavior was taken into account. A heuristic approach was introduced to examine the global target response, and a physically-based semi-analytical formulation for the maximum impact-induced kinetic energy in the target was developed. The methodology was validated through finite-element simulations and achieved accurate predictions with an average absolute error below 6.5% at and above the ballistic limit.
ENGINEERING FAILURE ANALYSIS
(2023)
Article
Materials Science, Multidisciplinary
N. Bhardwaj, R. Ganesh Narayanan, Uday S. Dixit
Summary: This study proposes a new friction stir spot welding technique using a consumable pin to produce exit-hole-free joints. Experimental results showed that joint strength using consumable pins increased by 40% to 37.6% compared to conventional pinless welding. The joint strength using consumable pins was comparable to conventional welding with a hard pin, but with the advantage of having an exit-hole-free joint. The study also found that AA6061-T6 consumable pin performed better than other consumable pins.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Engineering, Manufacturing
James Allum, Amirpasha Moetazedian, Andy Gleadall, Niall Mitchell, Theodoros Marinopoulos, Isaac McAdam, Simin Li, Vadim V. Silberschmidt
Summary: Recent studies have found that the major cause of mechanical anisotropy in extrusion additive manufacturing is the microscale geometry, not weak inter-layer bonding. A new convention for print-path design, setting the extrusion width to be at least 250% of nozzle diameter, significantly improves mechanical performance and reduces printing time. By replacing multiple thin extrusions with a single extra-wide extrusion, the contact area and strength, strain-at-fracture, and toughness can be enhanced.
ADDITIVE MANUFACTURING
(2023)
Article
Materials Science, Multidisciplinary
Bappa Das, Biranchi N. Panda, Uday S. Dixit
Summary: This study investigates the effect of post-heat treatment on the mechanical properties of Fe-based ER70S-6 cladding on AA 6061-T6 substrate. Four different types of post-heat treatment were applied to the samples, and the grain size, microstructure, and surface roughness were analyzed. The results show that the fourth type of heat treatment provides the best hardness and wear resistance.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Materials Science, Multidisciplinary
Pankaj Kumar Singh, Santosh Kumar, Pramod Kumar Jain, Uday Shanker Dixit
Summary: This article presents a comprehensive study on the effect of build orientation in laser-powder bed fusion (L-PBF) technique of additive manufacturing with Ti-6Al-4V alloy. The study shows that different build orientations result in variations in mechanical and metallurgical properties. The necessity of considering build orientation as an important decision variable in the process optimization is highlighted.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Review
Materials Science, Multidisciplinary
Niranjan Kumar Choudhry, Biranchi Panda, Uday Shanker Dixit
Summary: This article summarizes the latest advances in manufacturing and applications of auxetic materials, which have negative Poisson's ratio. The ability to tailor their macroscopic properties through 3D printing technologies has generated significant interest in various industries. The focus of this review is on the energy absorption performance of re-entrant structures manufactured by fused deposition modeling 3D printing process. It provides an outlook on future research in designing and modeling re-entrant structures for different industrial applications.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Chemistry, Multidisciplinary
Meng Han, Chuwei Zhou, Vadim V. Silberschmidt, Qinsheng Bi
Summary: Carbon/carbon composites are widely used in re-entry engineering applications due to their excellent mechanical properties, but they are prone to oxidation in the presence of oxygen. This study proposes a microscale degradation model to predict the oxidation behavior and evaluate the residual mechanical properties of the oxidized composite theoretically. A numerical strategy is used to investigate the oxidation mechanism and the results show a decrease in mechanical properties of the composite after oxidation. Stress redistribution and increased stress areas facilitate oxygen diffusion into the matrix and fibers.
Article
Materials Science, Multidisciplinary
Minghua Cao, Konstantinos P. P. Baxevanakis, Vadim V. V. Silberschmidt
Summary: This study investigates the effect of graphite morphology on the thermomechanical performance of Compacted Graphite Iron (CGI) under high temperatures using three-dimensional finite-element models. The results contribute to a better understanding of the correlation between graphite morphology and CGI fracture mechanisms under high temperatures.
Article
Materials Science, Multidisciplinary
Theodoros Marinopoulos, Simin Li, Vadim V. Silberschmidt
Summary: Due to unique patient characteristics, prosthetic sockets cannot be included in a standardised testing protocol as the rest major parts of the prosthesis. This makes the mechanical assessment of the socket a difficult process, which still remains crucial, especially nowadays, when new manufacturing technologies, such as additive manufacturing, are gaining ground in the field. In this study, a prototype testing rig was developed according to BS EN ISO 10328 standard, able to recreate the loading conditions of the early stance of the amputee gait on a paediatric transfemoral socket. The load requirements suggested in the standard were recalculated for the case of a 14-year-old male user with their weight in the 98th percentile. A variety of above-knee prosthetic sockets were produced with PLA and carbon-fibre reinforced nylon, using a commercial 3D printer. The sockets were tested under compressive load employing a plaster limb manikin. Video image processing was used to accurately capture the load-displacement relation of the sockets. & COPY; 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Multidisciplinary
Md Niamul Islam, Konstantinos P. Baxevanakis, Vadim V. Silberschmidt
Summary: This study investigates the viscoelastic performance of additively manufactured (AM) nylon and nylon-matrix composites reinforced with different fibre orientations. The results showed that the addition of fibres increased the storage modulus of most composites, but also led to increased porosity and poor fibre-matrix bonding. The fibre orientation and other factors affected the loss modulus of the composite structures. The quantified parameters can be used in numerical simulations to support the design and optimization of AM components.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Engineering, Mechanical
Theodosios Stergiou, Konstantinos P. Baxevanakis, Anish Roy, Leonid V. Voronov, Nickolay A. Sazhenkov, Mikhail Sh. Nikhamkin, Vadim V. Silberschmidt
Summary: The ballistic performance of thin aluminium targets under varying impacts from plate-like projectiles was investigated. Different projectile geometries resulted in different defeat mechanisms and target responses. The critical velocity of penetration showed a quadratic dependence on the ratio of the projectile's equivalent diameter to the target's thickness, and the energy transfer mechanisms played a significant role in dissipating the projectile's kinetic energy.
ENGINEERING FAILURE ANALYSIS
(2023)
Article
Engineering, Aerospace
Yuantian Qin, Yucheng Zhang, Vadim Silberschmidt, Luping Zhang
Summary: A new method for dynamic load location identification is proposed in this study, which utilizes the amplitude ratio or phase difference of structural dynamic response signals to extract the location information of the load. Parameter optimization using a Genetic Algorithm allows for quick and accurate identification of the excitation location.
