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Modeling and Multi-objective Optimization Method of Machine Tool Energy Consumption Considering Tool Wear Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2021-03-05 Bo Li; Xitian Tian; Min Zhang
The natural energy crisis and the increasingly serious environmental problems have imposed all industries to reduce energy consumption. During milling process, selecting a correct cutting parameters can not only greatly improve production quality and processing efficiency, but also can reduce energy consumption, in addition, tool wear also has a great impact on them. Therefore, a milling power consumption
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Energy-Saving for a Velocity Control System of a Pipe Isolation Tool Based on a Reinforcement Learning Method Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2021-03-05 Tingting Wu; Hong Zhao; Boxuan Gao; Fanbo Meng
The pipe isolation tool (PIT) demonstrates remarkable advantages in safety and efficiency compared with traditional plugging devices. However, its utilization in plugging operations is limited by the operation duration. In addition, the existing energy recovery system has low energy saving efficiency. In this paper, a real-time control energy-saving system of the PIT was designed based on a reinforcement
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Frequency Up-Conversion Hybrid Energy Harvester Combining Piezoelectric and Electromagnetic Transduction Mechanisms Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2021-03-05 Soonjae Pyo; Dae-Sung Kwon; Hee-Jin Ko; Youngkee Eun; Jongbaeg Kim
A hybrid energy harvester with frequency up-conversion structures is proposed. The harvester achieves a high power output by utilizing both piezoelectric and electromagnetic transduction mechanisms. The harvester comprises a flexible substrate and two (internal and external) cantilevers. The internal and external cantilevers used for piezoelectric and electromagnetic conversion, respectively, are arranged
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Melting Cell Based Compensated Design Method for Improving Dimensional Accuracy of Additively Manufactured Thin Channels Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2021-02-23 Li Sun, Xiaobo Ren, Jianying He, Zhiliang Zhang
Powder-bed fusion additive manufacturing technology makes it possible to produce parts with complicated geometry and high accuracy. However, dimensional deviation caused by powder overmelting and dross formation is still a challenge for manufacturing thin channels. In this study, the origins of the overmelting of printed thin channels were analyzed and a concept called “melting cell” is proposed to
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Mechanical and Thermal Load Effects of Novel MWFs Delivery Method in Milling of Ti–6Al–4V Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2021-02-23 Anshab Kummamkandath, Arnaud Duchosal, Antoine Morandeau, René Leroy
This work mainly focuses on the effectiveness of both rake and flank face application of the different metal working fluid (MWF) strategies such as liquid CO2, minimal quantity lubrication (MQL), and emulsion in face milling of Ti–6Al–4V alloy. Modified CoroMill 600 cutter via internal channels to both rake and flank faces of the inserts with PVD coated inserts were used for the studies. This novel
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Effect of Friction Stir Process Parameters on Mechanical Properties of Chrome Containing Leather Waste Reinforced Aluminium Based Composite Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2021-02-19 Shashi Prakash Dwivedi, Rajeev Agrawal, Shubham Sharma
Nowadays, there is a lot of environmental pollution due to the wastes generated by the industries. In particular, the waste generated by leather industries produces more environmental pollution. Chrome containing leather waste (CCLW) also causes a lot of environmental pollution. In this study, an attempt has been made to use CCLW as reinforcement with aluminium. Collagen powder was extracted from CCLW
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Surface Integrity Evaluation When Turning Inconel 718 Alloy Using Sustainable Lubricating-Cooling Approaches Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2021-02-19 Le Gong, Rachele Bertolini, Stefania Bruschi, Andrea Ghiotti, Ning He
This novel work focuses on turning Inconel 718 alloy using different sustainable lubricating-cooling techniques. Cryogenic machining (Cryo), minimum quantity lubrication (MQL) and nanofluid MQL (NFMQL) were applied and their performances in terms of obtainable surface integrity evaluated in comparison with dry cutting (dry) and wet machining (wet). The surface integrity was analyzed from the aspect
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The Ultrafast and Eco-friendly Reduction of Graphene Oxide Using a UV–IR Assisted Intense Pulsed Light and Its Application as Supercapacitor Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2021-02-19 Yeon-Taek Hwang, Hak-Sung Kim
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Tin Layer as a Solid Lubricant for Cold Tube Drawing Processes Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2021-02-19 Mahesh Patil, Varinder Singh, Amit Kumar Gupta, Srinivasa Prakash Regalla, Tufan Chandra Bera, Bade Simhachalam, Krishna Srinivas
This paper reports an investigation into the deployment of a thin layer of tin as a lubricant on low carbon steel tube for tube drawing process. The layer was deposited using electro-deposition technique using a green technology of citric acid based electrolyte bath. Coating layer is characterized using SEM, EDS and 3D digital microscopy technique before and after drawing processes. Experimental trials
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Performance Evaluation and Validation of H-Darrieus Small Vertical Axis Wind Turbine Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2021-02-19 Hyeonmu Jang, Yechan Hwang, Insu Paek, Seungryul Lim
In this study, the power performance of an H-Darrieus vertical-axis lift-type wind turbine is investigated. Computational fluid dynamics and double-multiple stream tube simulations are used to predict the power coefficient (aerodynamic efficiency) of the rotor. Additionally, the efficiency of the electrical systems, including the generator and the inverter, is experimentally investigated by a motor–generator
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Simulation of Cryo-cooling to Improve Super Alloys Cutting Tools Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2021-02-15 Octavio Pereira, A. Rodríguez, A. Calleja-Ochoa, A. Celaya, L. N. López de Lacalle, A. Fernández-Valdivielso, H. González
Improve machining processes from an environmental point of view is a hot topic currently. In this line, cryogenics CO2 is presented as a solution to substitute conventional oil emulsions. However, to be applied industrially, it is needed to control CO2 flow rate with the aim of reducing CO2 consumption to reach what it is known as ECO2-performance (economy + ecology). Then, despite currently CO2 cooling
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Effect of Stacking Sequences, Fabric Orientations, and Chemical Treatment on the Mechanical Properties of Hybrid Woven Jute–Ramie Composites Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2021-02-15 C. Tezara, M. Zalinawati, J. P. Siregar, J. Jaafar, M. H. M. Hamdan, A. N. Oumer, K. H. Chuah
Natural fibres have been widely used in advanced applications, especially in the automotive industry. These fibres are inexpensive, non-abrasive, environmentally friendly, biodegradable, and possess low density with good mechanical properties. The main issue in using natural fibres is their incompatibility with a polymer matrix that lowers the mechanical properties. Therefore, this research analyses
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Directed Energy Deposition (DED) Process: State of the Art Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2021-02-15 Dong-Gyu Ahn
Metal additive manufacturing technologies, such as powder bed fusion process, directed energy deposition (DED) process, sheet lamination process, etc., are one of promising flexible manufacturing technologies due to direct fabrication characteristics of a metallic freeform with a three-dimensional shape from computer aided design data. DED processes can create an arbitrary shape on even and uneven
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Pre-bent Flow-Field Plates for Enhanced Performance in Flexible Polymer Electrolyte Membrane Fuel Cells in Curved Shape Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2021-02-12 Hongnyoung Yoo, Jaeyeon Kim, Obeen Kwon, Hyeok Kim, Geon Hwi Kim, Heesoo Choi, Hyeonjin Cha, Dasol Kim, Segeun Jang, Taehyun Park
This article reports on a flexible polymer electrolyte membrane fuel cell (PEMFC) with a pre-bent flow field. The performances in the flat and bent positions were lower and higher, respectively than that of the traditional flexible fuel cells. The low performance in the flat position was attributed to the void space induced incomplete contact at the interface of the membrane electrode assembly (MEA)
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Effects of Physicochemical Properties of Different Base Oils on Friction Coefficient and Surface Roughness in MQL Milling AISI 1045 Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2021-02-10 Qingan Yin, Changhe Li, Lan Dong, Xiufang Bai, Yanbin Zhang, Min Yang, Dongzhou Jia, Runze Li, Zhanqiang Liu
Minimum quantity lubrication (MQL) is an emerging green and resource-saving machining technique jetting minute amount lubricants and gas after mixing and atomization. However, MQL development is restricted to mineral oils because of its undegradability and threat to the environment and human health. Vegetable oils can replace mineral oils as base oil for MQL benefitting from its biodegradability and
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Correction to: Multiscale Topology Optimization Combining Density-Based Optimization and Lattice Enhancement for Additive Manufacturing Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2021-01-26 Jae-Eun Kim, Keun Park
Due to an unfortunate oversight, the colour bar.
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Fabrication of Highly Flat, Flexible Mesh Electrode for Use in Photovoltaics Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2021-01-26 Zhaoyang Zhong, Pyeongsam Ko, Hongseok Youn, Areum Kim, Kyoohee Woo
Metal mesh-based flexible transparent conductive electrodes have attracted much interest as one alternative to conventional indium tin oxide electrodes. In addition to ongoing efforts to develop scalable and cost-effective fabrication processes for high-resolution mesh patterns, the high surface roughness of the mesh which can cause short circuiting and current leakage in optoelectronic devices must
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Advancement of Mechanical Engineering in Extreme Environments Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2021-01-26 Zhen Qin, Yu-Ting Wu, Amre Eizad, Sung-Ki Lyu, Choon-Man Lee
With the continuing increase in the use of technology in the modern world, the environmental demands placed on mechanical products have become increasingly harsh, especially in the fields of industrial equipment, vehicles, robotics, medical equipment, and weapons. For the development of mechanical engineering, it is essential to ensure reliable performance, high efficiency, and long durability in extreme
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Laser Beam as a Precision Tool to Increase Fatigue Resistance in an Eyelet of Undercarriage Drag Strut Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2021-01-20 Marek Szkodo, Anna Bień, Alicja Stanisławska
The article contains the results of tests on a laser-processed eyelet of undercarriage drag strut to increase its fatigue strength. Laser processing concentrated on both sides around the hole of eye for connecting the undercarriage drag strut caused that the material in this area withstood more than twice the number of load cycles established for this material. In order to determine the reasons for
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Reduction in High-Frequency Wheel Noise/Vibration of Railway Vehicles Using Piezoelectric Shunt Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2021-01-20 Yang-Soo Yun, Jae-Chul Kim, Hee-Min Noh, Min-Soo Kim
We propose the application of a resonant shunt to wheels to reduce the high-frequency wheel noise generated by railway vehicles. High-frequency wheel noise is caused by the resonance of wheels owing to contact between rails and wheels. A resonant shunt is applied at specific frequencies to reduce wheel resonance. In this work, the high-frequency noise generated by a wheel moving on a curved railway
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Establishment of the Model Widely Valid for the Melting and Vaporization Zones in Selective Laser Melting Printings Via Experimental Verifications Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2021-01-18 Chang-Shuo Chang, Kuan-Ta Wu, Chang-Fu Han, Tsung-Wen Tsai, Sung-Ho Liu, Jen-Fin Lin
The thermally affected material properties operating in the three phases and porosity variations in the SS316L steel powder have been introduced to the numerical analyses for the transient volumetric heat source (Q) models developed for the solid powder, melting, and vaporization regions in the selective laser melting (SLM). The bulk Q is thus a function of these heat sources and their ratio defined
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Dual-crankshaft out-of-phase balanced drive mechanism applied to high-frequency scraping of high-density microcavities patterns Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2021-01-18 Shun-Tong Chen, Wei-Yu Jhou
This study examines the development of a “dual-crankshaft out-of-phase balanced drive mechanism” and its application in the realization of high-frequency scraping in the production of highly precise, extremely dense microconcavity patterns. The high-density microcavity mold can produce micro-lens arrays, which achieve energy saving through the light-gathering effect. A monocrystalline diamond tool
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Encapsulation of Metal Catalysts for Stable Solid Oxide Fuel Cell Cathodes Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2021-01-13 Jongseo Lee, Mingi Choi, Wonyoung Lee
Metal catalysts have been employed as cathodes for solid oxide fuel cells to facilitate the surface exchange rate in the intermediate temperature range (600–800 °C). However, incorporated metal catalysts easily agglomerate, resulting in the loss of the reaction sites; thus, the electrochemical performance rapidly deteriorates over time. To hinder the agglomeration of metal catalysts while maintaining
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A Novel Wind Turbine Health Condition Monitoring Method Based on Correlative Features Domain Adaptation Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2021-01-13 Wenyi Liu, He Ren, Mirza Ali Shaheer, Jahanzeb Aslam Awan
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Voxel-Based Geometry Reconstruction for Repairing and Remanufacturing of Metallic Components Via Additive Manufacturing Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2021-01-13 Xinchang Zhang, Wenyuan Cui, Frank Liou
In the component repair process using additive manufacturing (AM) technique, reconstructing the repair volume is essential to generate the repair tool path and guide the AM system to deposit correct geometry on the worn parts. In this study, a novel repair volume reconstruction methodology based on voxel modeling was introduced. At first, the stereolithography (STL) models of the nominal and damaged
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Control of Local Hardness Gradient of Metal Surface by Inclined Surface Treatment Using Ultrasonic Nanocrystal Surface Modification Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2021-01-13 Yeong-Kwan Jo, Yeong-Wook Gil, Do-Sik Shim, Young-Sik Pyun, Sang-Hu Park
We propose an effective method to control the local hardness and morphology of a metal surface by tilting the incident angle of a horn during ultrasonic nanocrystal surface modification (UNSM). In this study, surface treatment using UNSM was performed on an S45C specimen and a parameter study was conducted for optimization. The process parameters were the feeding rate, static load, striking force,
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Dwell Time Algorithm Based on Bounded Constrained Least Squares Under Dynamic Performance Constraints of Machine Tool in Deterministic Optical Finishing Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2021-01-13 Yunfei Zhang, Fengzhou Fang, Wen Huang, Wei Fan
The dwell time algorithm is one of the most important techniques within the deterministic optical surfacing technologies. The existing dwell time algorithms are generally based on non-negative least squares (NNLS) without considering the dynamic performance constraints of machine tools. This is a circumstance that leads to poor convergence accuracy. In this paper, a dwell time algorithm, based on bounded
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Selective Laser Pyrolytic Micropatterning of Stretched Elastomeric Polymer Surfaces Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2021-01-13 Eunseung Hwang, Younggeun Lee, Jaemook Lim, Youngchan Kim, Weihao Qu, Koungjun Min, Won Chul Lee, Sukjoon Hong
The patterning of surface structures is a critical step for interfacial engineering applications that are based on soft lithography, casting, or imprinting techniques in general. However, photolithography and mold/die fabrication processes are expensive and time-consuming. To solve this problem, we developed a novel laser-based process that exploits the high stretchability of a polymer. In this study
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Surface Formation Mechanics and its Microstructural Characteristics of AAJP of Aluminum Alloy by Using Amino Thermosetting Plastic Abrasive Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-12-22 Yan song Zhu, Jun Wu, Wen zhuang Lu, Dun wen Zuo, He ping Xiao, Da wei Cao, Tae Jo Ko
In this study, a two-dimensional model according to the microcutting mechanism of abrasive particle was developed to demonstrate the mechanics of surface formation of the abrasive air jet polishing (AAJP) of aluminum alloy using amino thermosetting plastic (ATP) abrasive. It is shown that due to the characteristics of medium hardness and angular shape of ATP particle, the impacted surface can be generated
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Multiscale Topology Optimization Combining Density-Based Optimization and Lattice Enhancement for Additive Manufacturing Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-12-14 Jae-Eun Kim, Keun Park
Topology optimization (TO) is a shape optimization method based on finite element (FE) analysis, and has recently been used in lightweight design on the basis of the rapid advances of additive manufacturing (AM). While the conventional TO has been applied to obtain the optimal pseudo density in a macroscale domain, microscale TO involving optimization of the strut diameters of a lattice structure has
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Manufacturing of Compound Parabolic Concentrator Devices Using an Ultra-fine Planing Method for Enhancing Efficiency of a Solar Cell Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-12-07 Hwan-Jin Choi, Changsoon Cho, Sangwon Woo, Jung-Yong Lee, Yeong-Eun Yoo, Minwoo Jeon, Geon-Hee Kim, Tae-Jin Je, Eun-chae Jeon
Various structural patterns are used to control light properties during propagation. In particular, when light is trapped and concentrated onto solar cells, they generate more electricity than without concentration. Since the sun moves continuously, a compound parabolic concentrator (CPC) can enhance the efficiency of solar cells by light-trapping and concentration because a CPC minimizes optical loss
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Energy Scavenging From Low Frequency Vibrations Through a Multi-Pole Thin Magnet and a High-Aspect-Ratio Array Coil Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-12-02 Dong Han, Tadahiko Shinshi, Makoto Kine
The challenges of developing a micro electromagnetic power generator are to increase the flux density from the thin permanent magnet and reduce the resistance of the micro high-winding-density coil. To overcome these challenges, we propose a novel MEMS power generator for low-frequency-vibration energy harvesting employing a 16-poles thin magnet plate and a high-aspect-ratio spiral micro array coil
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Biomimetic Flow Sensor for Detecting Flow Rate and Direction as an Application for Maneuvering Autonomous Underwater Vehicle Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-11-30 Le-Giang Tran, Woo-Tae Park
Attaining the information of the hydrodynamic flow rate and direction is essential to the maneuvering of autonomous underwater vehicles (AUVs). This work presents a pillar-based flow sensor that measures hydrodynamic flow rate and direction. We propose a design that mimic the working principle of the neuromast, a ubiquitous organ in fishes that sense the water flow. By utilizing advances in piezo-resistive
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The Effects of Triton X-100 and Tween 80 Surfactants on the Thermal Performance of a Nano-Lubricant: An Experimental Study Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-11-26 Mustafa Akkaya, Tayfun Menlik, Adnan Sözen, Metin Gürü
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A Tower-Shaped Three-Dimensional Piezoelectric Energy Harvester for Low-Level and Low-Frequency Vibration Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-11-25 Xiaoxiang Wei, Haibo Zhao, Junjie Yu, Yiming Zhong, Yanlin Liao, Shiwei Shi, Peihong Wang
The multiple forms of vibration exist in an ambient environment diffusely and already become a considerable object for energy harvesting. However, how to effectively extract low-level, low-frequency, and multi-directional vibration from the ambient environment is becoming a key issue in the field of energy harvesting. To solve this issue, a tower-shaped piezoelectric vibration energy harvester (TS-PVEH)
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Eco-friendly Strategies for the Material and Fabrication of Wearable Sensors Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-11-23 Yan Liu, Siyao Shang, Shuting Mo, Peng Wang, Hai Wang
Wearable sensors are attracting great attentions due to their potential applications in human health monitoring and caring systems. The wide utilization of wearable electronics may cause great burden to the environment, due to the vast contaminants generated in their fabrication and after their usage. Consequently, great efforts are devoted to the eco-friendly strategies for the material and fabrication
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Correction to: Multilevel-Modeling Interpretation of Trailing-Edge Noise Models for Wind Turbines with NACA 0012 Airfoil Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-11-20 Deok-Kee Choi
Due to an unfortunate oversight the acknowledgment section has been omitted. It should be read: The present research was supported by the research fund of Dankook university in 2021
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Flexibility Enhancements of Hybrid Copper Inks with Cellulose Nanocrystals Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-11-04 Lei Liu, Danny Wong, Jihyun Lee, Simon S. Park
Increasingly, copper nanopowders are commonly used in conductive inks due to their cost-efficiency compared to silver or gold and excellent electrical conductivity. One of the challenges associated with copper inks is oxidation and to address, we have developed a hybrid copper-based ink by removing the oxide layer of copper powders and coat the powders with a silver shell to protect from oxidation
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Experimental Assessment of the Power Conversion of a Wave Energy Converter Using Hydraulic Power Take-Off Mechanism Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-10-29 Tri Dung Dang, Tri Cuong Do, Kyoung Kwan Ahn
The hydraulic power take-off (HPTO) is considered as the most promising method to convert wave power to electrical power. This paper presents an experimental assessment of the power conversion of a wave energy converter using HPTO. Based on the experimental results, a modification of accumulator pre-charged pressure and a control strategy were proposed to improve the system performance. System design
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Optimization-Based Fuzzy Energy Management Strategy for PEM Fuel Cell/Battery/Supercapacitor Hybrid Construction Excavator Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-10-26 Hoang Vu Dao, Xuan Dinh To, Hoai Vu Anh Truong, Tri Cuong Do, Cong Minh Ho, Tri Dung Dang, Kyoung Kwan Ahn
Fuel cell hybrid electric construction equipment (FCHECE) is known as a promising solution to achieve the goal of energy saving and environment protection. Energy management strategy is a key technology of FCHECE, which splits the energy flow between power sources. This paper presents a novel optimal energy management strategy for a hybrid electric-powered hydraulic excavator system to enhance power
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Fabrication of Plasmon-Active Polymer-Nanoparticle Composites for Biosensing Applications Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-10-26 Abhinay Mishra, Abdul Rahim Ferhan, Chee Meng Benjamin Ho, JooHyun Lee, Dong-Hwan Kim, Young-Jin Kim, Yong-Jin Yoon
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A Feature Inherited Hierarchical Convolutional Neural Network (FI-HCNN) for Motor Fault Severity Estimation Using Stator Current Signals Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-10-22 Chan Hee Park, Hyunjae Kim, Junmin Lee, Giljun Ahn, Myeongbaek Youn, Byeng D. Youn
Motors, which are one of the most widely used machines in the manufacturing field, take charge of a key role in precision machining. Therefore, it is important to accurately estimate the health state of the motor that affects the quality of the product. The research outlined in this paper aims to improve motor fault severity estimation by suggesting a novel deep learning method, specifically, feature
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Exergoeconomic Analysis of a Novel Zeotropic Mixture Power System Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-10-15 N. Shankar Ganesh, G. Uma Maheswari, Tangellapalli Srinivas, B. V. Reddy
A parametric investigation of a novel ammonia water mixture power generation system is performed in this study. The overall performance and feasibility of the system of the proposed system are assessed from thermoeconomic, conventional exergy and advanced exergy perspectives. For better heat recovery in the existing medium-temperature heat recovery Kalina system, auxiliary solar heater is considered
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Additive Manufacturing of Functional Microarchitected Reactors for Energy, Environmental, and Biological Applications Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-10-13 Seok Kim, Do Hyeog Kim, Wonpyo Kim, Young Tae Cho, Nicholas X. Fang
The use of microreactors in the continuous fluidic system has been rapidly expanded over the past three decades. Developments in materials science and engineering have accelerated the advancement of the microreactor technology, enabling it to play a critical role in chemical, biological, and energy applications. The emerging paradigm of digital additive manufacturing broadens the range of the material
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Gantry type Lapping Manipulator toward Unmanned Lapping Process for a Large Work Surface Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-10-09 Sangki Park, Daegwon Koh, Jaeyoon Shim, Jong-Jae Kim, Sun-Kyu Lee
This paper presents a developed manipulator and control method for automatic lapping process applied to a large work surface. A lapping machine consists of a newly designed parallelogram-type 5-axis manipulator and a conventional 3-axis gantry machine. The gantry machine is utilized to precision positioning over a large work area, and the manipulator is controlled by a separate controller for lapping
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A Study on Copper/Silver Core–Shell Microparticles with Silver Nanoparticles Hybrid Paste and its Intense Pulsed Light Sintering Characteristics for High Oxidation Resistance Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-10-09 Jong-Whi Park, Yong-Rae Jang, Hyoung-Sub Shin, Hak-Sung Kim, Jay J. Kim
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Recent Control Technologies for Floating Offshore Wind Energy System: A Review Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-10-06 Kwangtae Ha, Hoai Vu Anh Truong, Tri Dung Dang, Kyoung Kwan Ahn
This paper presents the recent control technologies being researched for floating offshore wind energy system (FOWES). FOWES has been getting many attentions recently as an alternative energy system utilizing vast sustainable wind resource away from land with little restriction by human societies, artificial and natural obstacles. However, not only due to the harsh environmental conditions such as
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Selective Laser Ablation of Metal Thin Films Using Ultrashort Pulses Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-09-28 Byunggi Kim, Han Ku Nam, Shotaro Watanabe, Sanguk Park, Yunseok Kim, Young-Jin Kim, Kazuyoshi Fushinobu, Seung-Woo Kim
Selective thin-film removal is needed in many microfabrication processes such as 3-D patterning of optoelectronic devices and localized repairing of integrated circuits. Various wet or dry etching methods are available, but laser machining is a tool of green manufacturing as it can remove thin films by ablation without use of toxic chemicals. However, laser ablation causes thermal damage on neighboring
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Convective Heat Transfer Coefficient Model Under Nanofluid Minimum Quantity Lubrication Coupled with Cryogenic Air Grinding Ti–6Al–4V Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-09-28 Jianchao Zhang, Wentao Wu, Changhe Li, Min Yang, Yanbin Zhang, Dongzhou Jia, Yali Hou, Runze Li, Huajun Cao, Hafiz Muhammad Ali
Under the threat of serious environmental pollution and resource waste, sustainable development and green manufacturing have gradually become a new development trend. A new environmentally sustainable approach, namely, cryogenic air nanofluid minimum quantity lubrication (CNMQL), is proposed considering the unfavorable lubricating characteristic of cryogenic air (CA) and the deficient cooling performance
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Scalable Batch Fabrication of Flexible, Transparent and Self-triggered Tactile Sensor Array Based on Triboelectric Effect Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-09-25 Yoonsang Ra, Moonwoo La, Sumin Cho, Sung Jea Park, Dongwhi Choi
In this study, a facile and scalable fabrication process of the flexible and transparent tactile sensor array where its operation is based on the triboelectric effect is proposed. The overall process is assisted by the solution based screen printing method, which is well-known as advantageous in the batch fabrication of the electronic devices. The introduction of the batch fabrication process to the
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Manufacturing of 3D Microlens Array Mold on Bulk Metallic Glass by Self-Aligned Multi-Ball Hot Embossing Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-09-22 Xiaohua Liu, Ruodong Mo, Kangsen Li, Jun Shen, Jiang Ma, Feng Gong
Bulk metallic glasses (amorphous alloys) exhibiting both high hardness and extraordinary thermoplastic forming ability, are perfect mold material for 3D optical microlens array. However, conventional 3D micro fabrication for metallic glass requires Si templates which are extremely costly and eco-unfriendly to machine and demold. In this study, we report a green and low-cost self-aligned multi-ball
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Modern Approach to Delivery Coolants, Lubricants and Antiadhesives in the Environmentally Friendly Grinding Processes Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-09-21 Krzysztof Nadolny, Seweryn Kieraś, Paweł Sutowski
Control of thermal conditions in the grinding zone is possible through effective delivery of substances with cooling, lubricating and antiadhesive properties during the machining process. In addition to the benefits of coolants, however, a number of economic and ecological problems arise, which include the costs of purchase, use and maintenance as well as the environmental impact of its disposal. These
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Design, Simulation and Experiment for a Vortex-Induced Vibration Energy Harvester for Low-Velocity Water Flow Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-09-17 Dongxing Cao, Xiangdong Ding, Xiangying Guo, Minghui Yao
Piezoelectric vibration energy harvesting has attracted considerable attention because of its prospects in self-powered electronic applications. There are a many low-velocity waters in nature, such as rivers, seas and oceans, which contain abundant hydrokinetic energy. In this paper, an optimal geometric piezoelectric beam combining magnetic excitation is identified and applied to a vortex-induced
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Reliability Allocation Method for Remanufactured Machine Tools Based on Fuzzy Evaluation Importance and Failure Influence Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-09-16 Yanbin Du, Guoao Wu, Ying Tang, Huajun Cao, Shihao Liu
Reliability is the key performance indicator for remanufactured machine tools to be approved by customers. Reliability allocation is an important task that needs to be done in the design phase of remanufactured machine tools to ensure that remanufactured products meet the reliability target requirements. A reliability allocation method for remanufactured machine tools is proposed based on fuzzy evaluation
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Design and Testing of a Mechanical Power Take-off System for Rolling-type Wave Energy Converter Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-09-14 Yichen Jiang, Yuhao Peng, Yuan Sun, Zhi Zong, Lei Sun
Salter’s Duck can convert wave energy to mechanical energy with high efficiency up to 90%. The limitations and challenges in the usage of Salter’s Duck for energy production include preventing hydraulic system from the risk of leaking hydraulic oil and removing complex huge fixed bracket. This paper presents the conceptual design and an experimental investigation of a mechanical power-take-off (PTO)
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Simple Fabrication of Water Harvesting Surfaces Using Three-Dimensional Printing Technology Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-09-14 Sanghu Han, Jaebum Sung, Hongyun So
A biomimetic surface for water collection was successfully engineered using three-dimensional (3D) printing technology. The fused deposition modeling-type 3D printing was used to create a reusable mold. This was used to cast waveform microstructures on a hydrophobic polymer surface, which was induced by using stacked filaments. The etching was performed on the printed mold by using a chemical solvent
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Fabrication of Parts with Integrated Circuits by Selective Electroless Plating of Additively Manufactured Plastic Substrates Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-09-04 Seonyeop Kim, Inhwan Lee, Hochan Kim
The use of printed circuit boards (PCBs) has become essential in manufacturing parts with electronic functions. However, the placement of PCBs inside a product requires special plates or fixtures that need to be separately designed, fabricated, and assembled. In addition, PCB manufacturing generally utilizes various toxic metals and etchants. Thus, there is a need to address the issues of space, cost
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Novel Environmentally Friendly Manufacturing Method for Micro-Textured Cutting Tools Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-09-02 Changping Li, Xinyi Qiu, Zhen Yu, Shujian Li, Pengnan Li, Qiulin Niu, Rendi Kurniawan, Tae Jo Ko
Surface texturing on cutting tools has a great influence on reducing the friction force between tool and chip interfaces. In this study, a grinding method was developed to fabricate micro-groove textures on cutting tools using a special diamond grinding wheel on the tool rake face. A comparative experiment was done using a laser and other grinding method to fabricate micro-grooves. The developed grinding
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Surface Texture Transformation in Micro-Cutting of AA6061-T6 with the Rehbinder Effect Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-08-31 Jiayi Zhang, Yan Jin Lee, Hao Wang
The Rehbinder effect (R-effect) on microcutting has been successful to augment machinability of ductile metals; however, there is a lack in understanding of its influence on texture evolution in the machined surfaces. This study validates the R-effect on AA6061-T6 and characterises the influence of the R-effect on the texture transformation in the machined surface. Microhardness tests reveal that the
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Modeling and Balancing for Green Disassembly Line Using Associated Parts Precedence Graph and Multi-objective Genetic Simulated Annealing Int. J. of Precis. Eng. and Manuf.-Green Tech. (IF 4.171) Pub Date : 2020-08-31 Kaipu Wang, Xinyu Li, Liang Gao, Peigen Li
Waste electrical and electronic equipment (WEEE) not only occupies resources but also pollutes the environment. Disassembly and recycling of WEEE is an important part of sustainable manufacturing. However, the number of parts in WEEE is large and the relationship between parts is complex, which increases the difficulty of disassembly task planning. Therefore, this paper proposes a precedence graph