Article
Materials Science, Multidisciplinary
Daniel Chuchala, Anna Sandak, Kazimierz A. Orlowski, Jakub Sandak, Olafur Eggertsson, Michal Landowski
Summary: This study focuses on comparing the cutting forces of Siberian larch from Siberia and driftwood found on the coast of Iceland. A new compensation procedure is proposed to homogenize the mechanical properties of wood, allowing for a direct comparison of machinability between driftwood and natural larch. Notable differences in cutting force values were observed for both types of wood, highlighting the impact of the drifting process in the Arctic Sea on wood properties.
Article
Engineering, Manufacturing
Farooq Ahmed, Tae Jo Ko, Rendi Kurniawan, Yein Kwack
Summary: This study evaluated the effect of ultrasonic vibration on improving the machinability of difficult-to-cut materials by establishing an analytical model to calculate cutting forces. The experiments showed that cutting forces were reduced and machined surface quality improved under the effect of tool vibration, indicating an overall enhancement in the machinability of the work material.
MATERIALS AND MANUFACTURING PROCESSES
(2021)
Article
Engineering, Civil
Xiaoxiang Sun, Mahmoud Ebrahimi, Shokouh Attarilar
Summary: The study focused on the machinability of UFG pure copper processed by twist extrusion, showing that the microstructure evolution through dynamic recrystallization mechanisms improved tensile strengths and hardness but reduced ductility. This enhanced machinability was attributed to lower thermal conductivity and strain localization within shear bands.
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2021)
Article
Engineering, Manufacturing
J. Vallejo, E. Garcia-Plaza, P. J. Nunez, J. M. Chacon, M. A. Caminero, A. Romero
Summary: FFF is a widely used additive manufacturing technique that simplifies the production of functional fibre reinforced composite products. However, it has limitations in terms of geometric and dimensional behavior, especially in machining operations. This study assessed the machinability of CF-PETG processed by FFF and found that it performed well in face milling but showed geometric defects in peripheral milling.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Materials Science, Multidisciplinary
Hansong Ji, Qinghua Song, Wentong Cai, Cheng Cao, Zongkai Lv, Zhanqiang Liu
Summary: The demand for Inconel-718 miniature parts has grown due to the development tendency of miniaturization. However, the non-negligible edge radius and property anisotropy result in volatile machinability and inferior quality, hindering the wide application of Inconel-718 miniature parts. This research aims to clarify the material removal mode and machinability of Inconel-718 micro-cutting by considering strain-rate sensitivity and strain-rate inhomogeneity, and the results show the influence of various cutting conditions on material removal mode and machinability.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Review
Automation & Control Systems
Dongbo Wu, Shibo Liu, Hui Wang
Summary: Titanium alloy and nickel-based high-temperature alloy have exceptional mechanical properties and are extensively used in aero-engine blades. However, their poor machinability is due to high material strength and low thermal conductivity, resulting in technical difficulties during the machining process. This study investigates the material properties and processing mechanisms of these alloys, focusing on recent advancements in cutting dynamics, chip formation mechanisms, tool wear, and surface integrity. The importance of rational setting of cutting parameters and machining conditions on machining integrity is discussed and future trends in high surface integrity machining of these alloys are predicted.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Review
Engineering, Aerospace
Ziwen Xia, Chenwei Shan, Menghua Zhang, Minchao Cui, Ming Luo
Summary: Due to its outstanding mechanical properties, y-TiAl is considered an ideal material for cross-generation aero-engines. However, its intrinsic brittleness remains a critical obstacle to its large-scale applications. This paper provides a systematic review of the material properties and cutting mechanism of y-TiAl, discussing its developmental process, phase transformation, microstructural evolution, and deformation mechanism. It also emphasizes the cutting mechanism, surface integrity, and potential research directions for high-performance machining technology of y-TiAl.
CHINESE JOURNAL OF AERONAUTICS
(2023)
Article
Automation & Control Systems
Salman Pervaiz, Sathish Kannan, Saqib Anwar, Dehong Huo
Summary: This study focused on the machinability analysis of Inconel 718 using numerical approach with experimental validations. Dry and cryogenic cooling methods were compared in terms of associated parameters, and chip morphology parameters were also investigated. The results showed that cryogenic cooling had a smaller chip compression ratio, a larger shear plane angle, and better lubrication compared to dry cutting.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Chemistry, Physical
Yasser Zedan, Guillermo H. Garza-Elizondo, Mahmoud Tash, Agnes M. Samuel, Herbert W. Doty, Victor Songmene, Fawzy Hosny Samuel
Summary: This study focuses on the machinability of alloys containing silicon and iron intermetallics. The presence of sludge has a significant effect on cutting forces and tool life, while the formation of alpha-Fe phase improves the tool life. Increasing Fe content can enhance the alloy's machinability.
Article
Green & Sustainable Science & Technology
cagri Vakkas Yildirim, Senol Sirin, Salih Dagli, Harsh Salvi, Navneet Khanna
Summary: In recent years, there has been an increasing demand for materials that can withstand high and/or low temperatures and harsh conditions. Superalloys have superior qualities that can meet this demand. However, the difficulties in machining these alloys pose ecological and economic burdens due to the use of cutting fluid. Therefore, using cost-friendly and sustainable cutting fluids is important in terms of machining performance and the environment. This study focuses on the effects of various cutting environments on the machining performance of Ni-based C4 alloy and analyzes their sustainability. The results show that the combination of Vortex and MQL cutting condition has the best performance in terms of surface roughness and power consumption, while LN2 has the best performance in terms of cutting temperature.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2023)
Article
Automation & Control Systems
Yiquan Li, Zhanjiang Yu, Jinkai Xu, Xiaozhou Li, Huadong Yu
Summary: In this study, an analytical model for micro metal cutting process without stable built-up edges was developed, considering the effects of edge radius and material separation on cutting force and shear angle. Experimental validation showed good agreement between model results and measurements, and the influence of factors such as friction angle on micro-cutting was investigated.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Jinyang Xu, Jiaxin Shen, Linfeng Li, Guoqiang Guo, Xinfa Zhu, Yi Meng, Ming Chen
Summary: This study investigates the effects of cutting parameters on the milling responses of GW63K Mg-RE alloys. The results show that the cutting force is highly dependent on the feed per tooth, and the cutting temperature increases with the cutting speed and feed per tooth. Minimum quantity lubrication (MQL) can reduce the milling temperature and improve the cutting performance and surface quality of Mg-RE alloys.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Review
Multidisciplinary Sciences
Michael Doube
Summary: This review provides a perspective on the relationship between the geometry of the bone formation front and the shape of lamellae produced. It concludes that the 'closing cone' bone formation front results in cone-shaped lamellae in mature secondary osteons. Visualizing and measuring three-dimensional lamellar shape is necessary for accurate micromechanical simulations.
ROYAL SOCIETY OPEN SCIENCE
(2022)
Review
Materials Science, Multidisciplinary
Ghulam Mustafa, Muhammad Tuoqeer Anwar, Arslan Ahmed, Muhammad Nawaz, Tahir Rasheed
Summary: Inconel 718, a nickel-based superalloy, is well-known for its excellent physical and mechanical properties at high temperatures. However, its high strength and hardness lead to poor machinability. Many studies have been conducted to understand and optimize the machining of Inconel 718, with a focus on cutting parameters and machinability features such as cutting tool wear, cutting forces, and surface reliability.
ADVANCED ENGINEERING MATERIALS
(2022)
Review
Engineering, Manufacturing
Guangxian Li, Sanjeet Chandra, Rizwan Abdul Rahman Rashid, Suresh Palanisamy, Songlin Ding
Summary: This paper presents a comprehensive review on the machinability of titanium alloys fabricated by various additive manufacturing (AM) techniques. By analyzing factors such as cutting forces, surface finish, and tool wear, it was found that the improvement in mechanical properties of AMed Ti resulted in higher cutting forces and temperatures, which significantly affected tool wear and surface quality. However, there is limited literature on significantly improving the machinability of AMed Ti components, suggesting a need for future research.
JOURNAL OF MANUFACTURING PROCESSES
(2022)
Article
Engineering, Biomedical
Liming Shu, Sho Hashimoto, Naohiko Sugita
Summary: The study developed an in silico polyethylene wear simulation for total knee replacements, showing good predicted accuracy and revealing relatively larger wear loss under loading conditions compared to walking. The squatting movement produced the highest overall wear rate, and more wear was found on the medial side knee prosthesis than the lateral side. The enhanced in silico polyethylene wear simulator provides an accurate and comprehensive tool for wear prediction in preclinical wear testing.
ANNALS OF BIOMEDICAL ENGINEERING
(2021)
Article
Biology
Liming Shu, Ko Yamamoto, Reina Yoshizaki, Jiang Yao, Takashi Sato, Naohiko Sugita
Summary: This study used a subject-specific musculoskeletal model and a high-accuracy intact finite element knee model to evaluate the kinematics and mechanics of an intact knee joint during the gait cycle. The results showed that internal rotation and parallel anterior translation are important movements for the normal function of the knee joint. Furthermore, the majority of the joint load is borne by the cartilage-cartilage contact, and there is significant contact pressure on the patellofemoral joint. These findings provide important theoretical foundations for the treatment of knee joint diseases and the design of knee prostheses.
COMPUTERS IN BIOLOGY AND MEDICINE
(2022)
Article
Engineering, Manufacturing
Zongwei Ren, Zhenglong Fang, Toru Kizaki, Yannan Feng, Tetsu Nagata, Yoshito Komatsu, Naohiko Sugita
Summary: This study aimed to improve the understanding of the effects of local cutting features on the surface integrity of approach and recess NGFs in gear skiving. The results showed that the local rake angle and uncut chip thickness were the most influential factors altering the plastic deformation conditions of the NGFs. The proposed local cutting feature calculations can be applied for further kinematic parameter optimization and MRI infeed rate design.
INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE
(2022)
Article
Optics
Jurim Jeon, Yangjin Kim, Sungtae Kim, Kenichi Hibino, Naohiko Sugita
Summary: A new method has been developed to determine the homogeneity in optical thickness of a transparent glass plate, and a 21-sample phase-extraction algorithm has been derived for this purpose. The algorithm is shown to be able to suppress residual ripples effectively and demonstrated to have greater error suppression ability compared to other algorithms.
OPTICS COMMUNICATIONS
(2022)
Article
Engineering, Multidisciplinary
Zhenglong Fang, Zongwei Ren, Toru Kizaki, Yannan Feng, Junshi Kugo, Yoshito Komatsu, Naohiko Sugita
Summary: The study focuses on the complex tool-chip contact conditions in gear skiving, proposing a level contour method to construct the uncut chip and gear gap geometries. By changing feed rates, the active contour method successfully captures the variation in contact area, providing a comprehensive understanding of tool-chip interaction during single-cut processes.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2022)
Article
Engineering, Industrial
Shunya Yoshitake, Yusuke Ito, Naoyuki Miyamoto, Reina Yoshizaki, Naohiko Sugita
Summary: In this study, ultrafast microwelding of glass substrates is achieved using ultrashort laser pulses, significantly increasing processing speed and allowing for a larger air gap between substrates, while maintaining welding strength.
CIRP ANNALS-MANUFACTURING TECHNOLOGY
(2022)
Article
Engineering, Multidisciplinary
Tatsuyuki Inoue, Toru Kizaki, Naohiko Sugita
Summary: A machine tool structural component with a large-scale array of temperature sensors interconnected in series is proposed to achieve accurate thermal error compensation. Experimental comparisons indicate that thermal deformations can be predicted more accurately in the structure made with the proposed composite material compared to conventional materials.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2022)
Article
Engineering, Multidisciplinary
Sungtae Kim, Yangjin Kim, Naohiko Sugita, Mamoru Mitsuishi
Summary: A harmonic phase-iterative technique was developed for high-precision measurement of silicon wafer surfaces. The technique effectively compensates for second-order harmonics and nonlinearity in phase modulation, resulting in superior phase extraction ability compared to conventional techniques.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2022)
Article
Engineering, Multidisciplinary
Zhenglong Fang, Naohiko Sugita
Summary: This study aims to control the surface texture of industrial parts using a 5-axis ball-end milling machine, with a fast simulation method to efficiently generate the desired texture while reducing surface roughness. The cutting features were comprehensively simulated, and the mechanism of sudden texture ridge direction change was clarified, contributing to the optimization process and demonstrating benefits for surface texture design and control.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2022)
Article
Physics, Applied
Masayuki Yoshida, Itsuki Nishibata, Tomoki Matsuda, Yusuke Ito, Naohiko Sugita, Ayumi Shiro, Takahisa Shobu, Kazuto Arakawa, Akio Hirose, Tomokazu Sano
Summary: This study investigates the influence of pulse duration on the mechanical properties and dislocation density of an aluminum alloy treated using dry laser peening. The results show that a pulse duration of 1 ps achieves the maximum peening effects by generating the strongest shock pressure, suppressing optical nonlinear effects, and minimizing thermal effects.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Engineering, Mechanical
Jiahui Liu, Toru Kizaki, Zongwei Ren, Naohiko Sugita
Summary: In this study, a mode shape database-based TOMA (MSDB-TOMA) estimation method is proposed for the system dynamics of machine tools under variation caused by component movements. The study establishes a mode shape database to capture dynamics variation influenced by movements of cutting positions and demonstrates good fitting performance in a finite element model (FEM) of a machine tool. The proposed method shows precise estimation of system dynamics parameters, with a maximum error of within 0.04%, and indicates the feasibility of in-process dynamics recognition for real machining.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Engineering, Industrial
Junya Hattori, Yusuke Ito, Naohiko Sugita
Summary: In this study, a multi-step drilling method is proposed and demonstrated, which suppresses crack generation in silicon carbide by approximately 70%. This method could be an important option for femtosecond laser microdrilling.
CIRP ANNALS-MANUFACTURING TECHNOLOGY
(2023)
Article
Engineering, Industrial
Liming Shu, Zhenlong Fang, Chao Wang, Toshifumi Katsuma, Bi Zhang, Naohiko Sugita
Summary: Understanding the wear mechanism and material removal mechanisms in dry grinding is crucial for improving its performance. This study analyzes the thermomechanical variations and surface quality resulting from grit wear in ceramic alumina and CBN grits. The findings show that the specific grinding force is lower with sharp ceramic alumina grit, but increases as grit wear develops. This study demonstrates the potential of dry grinding in terms of wear mechanism, grit morphology, and temperature rise.
CIRP ANNALS-MANUFACTURING TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Sung-Yeob Jeong, Yusuke Ito, Yong-Wan Kwon, Huijie Sun, Jae-Yeop Chung, Myung-Eun Suk, Naohiko Sugita
Summary: This research explores the fabrication of laser-induced graphene (LIG) from colorless polyimide (CPI) films and highlights its potential applications in pressure sensors and energy harvesting devices, showing promise in monitoring human physiology and powering wearables.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Cell & Tissue Engineering
L. Shu, N. Abe, S. Li, N. Sugita
Summary: This study aimed to investigate the effects of posterior tibial slope (PTS) angles on joint kinematics and contact mechanics of intact and anterior cruciate ligament-deficient (ACLD) knees. The results showed that increasing PTS angles significantly affected the tensile force on the ACL in the intact knee and led to differences in kinematics and increased loading on the medial meniscus.
BONE & JOINT RESEARCH
(2022)
Article
Biophysics
Nathan D. Camarillo, Rafael Jimenez-Silva, Frances T. Sheehan
Summary: This article discusses the statistical dependence between multiple measurements from the same participant and provides recommendations for using these measurements when they are not independent.
JOURNAL OF BIOMECHANICS
(2024)
Article
Biophysics
J. Huet, A. -S. Boureau, A. Sarcher, C. Cornu, A. Nordez
Summary: Standard compression in freehand 3D ultrasound induces a bias in volume calculations, but minimal compression and gel pad methods have similar results. With a trained examiner and precautions, the bias can be minimized and become acceptable in clinical applications.
JOURNAL OF BIOMECHANICS
(2024)
Article
Biophysics
C. Lariviere, A. H. Eskandari, H. Mecheri, F. Ghezelbash, D. Gagnon, A. Shirazi-Adl
Summary: Recent developments in musculoskeletal modeling have focused on model customization. Personalization of the spine profile may affect estimates of spinal loading and stability. This study investigates the biomechanical consequences of changes in the spinal profile and finds that personalizing the spine profile has medium to large effects on trunk muscle forces and negligible to small effects on spinal loading and stability.
JOURNAL OF BIOMECHANICS
(2024)
Article
Biophysics
Luke T. Mattar, Arash B. Mahboobin, Adam J. Popchak, William J. Anderst, Volker Musahl, James J. Irrgang, Richard E. Debski
Summary: Exercise therapy fails in about 25.0% of cases for individuals with rotator cuff tears, and one reason for this failure may be the inability to strengthen and balance the muscle forces that keep the humeral head in the correct position. This study developed computational musculoskeletal models to compare the net muscle force before and after exercise therapy between successfully and unsuccessfully treated patients. The study found that unsuccessfully treated patients had less inferiorly oriented net muscle forces, which may increase the risk of impingement.
JOURNAL OF BIOMECHANICS
(2024)
Article
Biophysics
Natsuki Sado, Takeshi Edagawa, Toshihide Fujimori, Shogo Hashimoto, Yoshikazu Okamoto, Takahito Nakajima
Summary: The existing methods for predicting hip and lumbosacral joint centres in Japanese adults are biased and differ between sexes. We propose new regression equations that consider soft-tissue thickness, sex differences, and a height-directional measure, and validate them using leave-one-out cross-validation.
JOURNAL OF BIOMECHANICS
(2024)
Article
Biophysics
Peimin Yu, Xuanzhen Cen, Qichang Mei, Alan Wang, Yaodong Gu, Justin Fernandez
Summary: This study aimed to explore the intra-foot biomechanical differences among individuals with chronic ankle instability (CAI), copers, and healthy individuals during dynamic tasks. The study found that copers and CAI individuals had smaller dorsiflexion angles and copers presented a more eversion position compared to healthy participants. Copers also had greater dorsiflexion angles in the metatarsophalangeal joint and more inversion moments in the subtalar joint during certain tasks. These findings can help in designing interventions to restore ankle joint functions in CAI individuals.
JOURNAL OF BIOMECHANICS
(2024)
Article
Biophysics
Jon Skovgaard Jensen, Anders Holsgaard-Larsen, Anders Stengaard Sorensen, Per Aagaard, Jens Bojsen-Moller
Summary: This study investigates the biomechanical effects of robot-assisted body weight unloading (BWU) on gait patterns in healthy young adults. The results show that dynamic robot-assisted BWU enables reduced kinetic requirements without distorting biomechanically normal gait patterns during overground walking.
JOURNAL OF BIOMECHANICS
(2024)
