Article
Automation & Control Systems
Zhengjian Wang, Xichun Luo, Haitao Liu, Fei Ding, Wenlong Chang, Liang Yang, Jianguo Zhang, Andrew Cox
Summary: This study focuses on the design and performance analysis of a non-resonant EVC device to overcome the challenge of low operational frequency, achieving a high operating frequency of up to 5 kHz. Experimental tests showed acceptable levels of cross-axis coupling ratio and heat generation in the prototype, demonstrating the machining flexibility and accuracy of the device in generating high-precision microstructures with different wavelengths and heights through tuning operational frequency and input voltage.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2021)
Article
Engineering, Mechanical
Fuhang Yu, Chen Zhang, Qinsong Zhu, Chengrang Liu, Zhenan Dong
Summary: By analyzing the kinematics and dynamics of ultrasonic vibration, the tool wear mechanism in UEVAC was investigated. Two mechanisms for reducing tool wear were identified: reducing material yield stress in non-separated UEVAC and reducing average contact stress in separated UEVAC. The study demonstrated the effectiveness of aligning ultrasonic energy field action times and intensity to reduce tool wear rates.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Green & Sustainable Science & Technology
Sangjin Maeng, Hiroaki Ito, Yasuhiro Kakinuma, Sangkee Min
Summary: Machining of steel-based alloy and tungsten carbide is challenging due to their hardness. Texturing on the rake face of the tool and ultrasonic elliptical vibration cutting (UEVC) can prolong tool life by reducing wear. This study investigates the cutting performance and tool wear in machining die materials with textured polycrystalline diamond tools under UEVC. The experiments show that UEVC reduces cutting force and improves tool life.
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING-GREEN TECHNOLOGY
(2023)
Article
Automation & Control Systems
Qian Su, Guosheng Su, Xuehui Shen, Baolin Wang, Jin Du, Peirong Zhang
Summary: This study proposes an eccentric cone ultrasonic elliptical vibration cutting (UEVC) tool based on mechanical vibration theory, and optimizes its dimensions through finite element analysis (FEA) to achieve low machined surface roughness and low tool wear.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Computer Science, Software Engineering
Qiang Zou
Summary: This paper introduces a tool path planning method for machining freeform surfaces, which involves finding the optimal trade-off between the preferred feed direction and constant scallop height to generate the shortest path. By formulating the problem as a Poisson problem that minimizes a simple quadratic energy, a well-conditioned sparse linear system is solved algorithmically, making it computationally convenient and efficient. Examples and comparisons have been conducted to validate the method.
COMPUTER-AIDED DESIGN
(2021)
Article
Engineering, Electrical & Electronic
Dawei Ding, Zhengcai Zhao, Rui Huang, Chenwei Dai, Xinquan Zhang, Taorui Xu, Yucan Fu
Summary: An error compensation model was established to improve the measurement accuracy of laser triangulation OMM (LTOMM). The generated measuring path is capable of minimizing measurement time while maintaining a given accuracy constraint.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2021)
Article
Chemistry, Analytical
Chen Zhang, Zeliang Shu, Yanjie Yuan, Xiaoming Gan, Fuhang Yu
Summary: A compound control method for trajectory error compensation in non-resonant EVC devices is proposed in this paper, which combines a dynamic PI model and PID feedback. The feasibility of the proposed method is verified through trajectory-tracking experiments.
Article
Materials Science, Multidisciplinary
Gan Li, Jinbo Liu, Yanan Pan, Yan Bao, Sen Yin, Zhigang Dong, Renke Kang
Summary: Ultrasonic elliptical vibration cutting is widely used in precision cutting of difficult-to-machine metal materials. This paper uses a rigid/viscoplastic rod model to simulate the cutting horn in the cutting device and analyzes the factors influencing the amplitude-frequency response of the horn. The influence of cutting speed and cutting depth on cutting chatter was studied through experiments, and the impact of cutting chatter on cutting surface morphology and tool wear was also investigated. The results show that the cutting speed affects the excitation frequency of the horn, and a reasonable cutting speed can prevent cutting chatter and horn resonance. The cutting depth affects the excitation amplitude and amplifies the vibration amplitude during chatter or resonance. Experimental results demonstrate that suppressing cutting chatter can significantly improve cutting surface quality and reduce diamond tool wear in ultrasonic elliptical vibration cutting of heavy tungsten alloy.
Article
Chemistry, Multidisciplinary
Ci-Rong Huang, Ming-Chyuan Lu
Summary: This study investigated the effect of cutting path on acoustic emission and vibration signals during micro milling processes and proposed a simple linear classifier for tool wear monitoring. The results showed that signal features generated from different cutting paths are distinct, and increasing signal length and reducing bandwidth size can improve system performance. However, avoiding complex cutting paths might be a better strategy for developing a micro milling tool wear monitoring system.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Analytical
Senbin Xia, Ziqiang Yin, Cheng Huang, Yawen Guo, Chao Zhang
Summary: Elliptical vibration-assisted cutting (EVAC) is an advanced micromachining method that enables results not possible with traditional machining. This study investigates the cutting characteristics of EVAC with variations in tilt angle of the elliptical locus. The effects of tilt angle on cutting forces, chip formation, defects, and surface roughness are observed and analyzed. The experimental results show that the tilt angle has a significant effect on the cutting performance of EVAC.
Article
Green & Sustainable Science & Technology
Jianguo Zhang, Andreas Rosenkranz, Junjie Zhang, Jiang Guo, Xiaoqing Li, Xiao Chen, Junfeng Xiao, Jianfeng Xu
Summary: Hardened steel is an important material in modern industry, and modifying its wettability through micro/nano structuring is crucial for enhancing adhesion strength and resistance to corrosion and wear under extreme conditions. The feasibility of micro/nano sculpturing of hardened steels using elliptical vibration diamond cutting is presented in this study, with optimal structural parameters identified to increase the hydrophobicity of textured steel.
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING-GREEN TECHNOLOGY
(2022)
Article
Engineering, Industrial
Shengjun Ao, Hu Gong, Kuntao Huang
Summary: This study presents a smooth tool path interpolation algorithm for ultraprecision turning discontinuous multi-freeform surfaces, reducing following errors and improving machining efficiency.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2021)
Article
Optics
Changfu Lang, Chuang Li, Hang Fu, Sui Bo, Chao Yang, Changxi Xue
Summary: The machining of freeform surfaces is a current research hotspot. A hybrid slow-fast tool servo method combining slow tool servo (STS) and fast tool servo (FTS) was proposed to machine large steep freeform surfaces. Experimental studies showed that this method improved processing efficiency and achieved good surface roughness.
Article
Automation & Control Systems
Chen Zhang
Summary: The study introduces a layered elliptical vibration-assisted cutting (LEVC) process to improve the controllability of micro groove fabrication through a layered approach. Experimental results show that the LEVC method is effective in generating micro grooves with controllable shape and depth.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Engineering, Manufacturing
Mohamed Wagih, Ibrahem Maher, Hassan El-Hofy, Jiwang Yan, Mohsen A. Hassan
Summary: Trochoidal milling is a machining method used to extend cutting tool life. This paper analyzes and experiments the elliptical tool path and proposes a novel linear-elliptical tool path to enhance the performance. The effects on material removal rate, cutting forces, walls waviness, and surface roughness are investigated. The results show improved material removal rate and surface quality, making the linear-elliptical paths promising in increasing the performance of trochoidal milling.
CIRP JOURNAL OF MANUFACTURING SCIENCE AND TECHNOLOGY
(2023)
Article
Optics
Xiaoqin Zhou, Hao Liu, Yucheng Li, Meng Ma, Qiang Liu, JieQiong Lin
Summary: This paper studies the influence of vibrations on the imaging quality of the integrated TDICCD aerial camera and establishes mathematical models to analyze the relationship between vibration responses of structures and imaging quality. With simulation imaging and multiple tests, the accuracy of the models is verified, showing a rapid decrease in imaging quality with increasing acceleration excitation.
Article
Engineering, Industrial
Yihang Fan, Yongshuo Xu, Zhaopeng Hao, Jieqiong Lin
Summary: The study shows that the presence of SiC particles changes the microstructure of the matrix material, leading to a high strain gradient in the matrix which makes the material more prone to shear deformation localization. During the cutting process, defects and breakage of SiC particles result in the formation of micro-cracks, which play a key role in chip generation. By comparing simulation and experimental results, it is found that the established theoretical model based on strain gradient better reflects the cutting process of particle-reinforced metal matrix composites.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2022)
Article
Engineering, Manufacturing
Xulong Zhuang, Mingming Lu, Jiakang Zhou, Jieqiong Lin, Weixing Li
Summary: By optimizing the shape of the arc permanent magnet through finite element simulation, the polishing efficiency of planar optical elements can be improved, resulting in better processing quality. Experimental results demonstrate that the use of arc permanent magnets can significantly reduce surface roughness and improve surface accuracy.
MATERIALS AND MANUFACTURING PROCESSES
(2022)
Article
Engineering, Mechanical
Jieqiong Lin, Chao Wang, Mingming Lu, Jiakang Zhou, Shixin Zhao, Yuyang Liu
Summary: The study developed a cutting force prediction model for ultrasonic vibration-assisted turning of SiCp/Al composites, effectively reducing the difficulty of machining and improving machinability. The feasibility of ultrasonic vibration-assisted turning was verified, and systematic analysis of cutting force was conducted.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Xian Jing, Wenfang Si, Jie Sun, Jiakang Zhou, Jieqiong Lin, Baojun Yu, Mingming Lu
Summary: This study utilized two-photon polymerization technology to measure the surface topography of crescent arrays in the Nepenthes slippery zone, proposing an outside-in scanning method to address issues in bionic crescent array surface fabrication. It systematically investigated the geometric parameters of BCAS and used perfluorinated polyether oil and fluorocarbon solvent to enhance hydrophobicity. Additionally, anisotropic wetting research was conducted, revealing the effects of offset and outer-inner radius ratio on contact angle differences and observing spreading and pinning phenomena caused by droplet anisotropic wetting.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Chemistry, Physical
Mingxu Fan, Xiaoqin Zhou, Shunfa Chen, Shan Jiang, Ke Gao, Xiuzhi He
Summary: This study investigates the emissivity and absorptivity of glass-ceramic for laser, and uses numerical simulations to analyze the temperature distribution during laser-assisted machining. The results provide important references for future experiments in this field.
Article
Chemistry, Analytical
Shiyu Li, Jinguo Han, Haiqiang Yu, Jinhui Wang, Mingming Lu, Yebing Tian, Jieqiong Lin
Summary: This paper adopts the finite element method to study the cutting force and residual stress of titanium alloy in elliptical vibration cutting. The study finds that cutting speed, vibration amplitude, vibration frequency, and depth of cut have significant effects on the principal cutting force. Furthermore, the 3D EVC method can easily generate a compressive stress layer near the machined surface, which improves the working performance of the workpiece.
Article
Public, Environmental & Occupational Health
Kuiyuan Guo, Xiaoqin Zhou
Summary: This article reports a novel nanofiber humidity sensor for autonomous vehicles. Copper oxide nanofibers were prepared by electrospinning and MEMS sensors based on them were fabricated. The sensitivity of the sensor to humidity was tested in different environments, and it was found that the MEMS humidity sensor based on copper oxide nanofibers can detect humidity changes over a wide range. Its fast response time, stability, and sensitivity make it suitable for high-speed cars.
JOURNAL OF ENVIRONMENTAL AND PUBLIC HEALTH
(2022)
Article
Engineering, Manufacturing
Mingxu Fan, Xiaoqin Zhou, Shunfa Chen, Shan Jiang, Jinzhou Song
Summary: In this study, a laser-assisted fast tool servo machining device for glass-ceramic is developed. The displacement output characteristics of the device are verified by simulation and displacement measurement experiment. Laser-assisted fast tool servo machining can reduce surface roughness by 24.4% and tool wear by 35.7% compared to conventional machining, which fully proves that the laser-assisted fast tool servo machining device can obtain higher machining quality of optical free-form surface.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE
(2023)
Article
Engineering, Mechanical
Mingxu Fan, Xiaoqin Zhou, Shunfa Chen, Shan Jiang, Jinzhou Song
Summary: In order to improve the surface quality of laser-assisted fast tool servo machining optical free-form surface of glass-ceramic, the effects of spindle speed, feed speed, piezoelectric frequency and laser power on the surface roughness were investigated. The optimal machining parameter combinations were obtained through the Taguchi method (TM) and response surface methodology (RSM), and a regression model for surface roughness was established.
SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES
(2023)
Article
Instruments & Instrumentation
Zhaochen Ding, Huadong Yu, Xiaoqin Zhou, Zhi Xu, Jingshi Dong, Wen Qiu
Summary: In this study, a bipedal cooperative drive method for the stick-slip actuator is proposed to improve stepping characteristics and achieve smooth motion under different conditions. The displacement curves transition from non-smooth to smooth to sudden jump as the driving voltage rises. The designed actuator can maintain good smoothness within a horizontal load range of 20-30 g.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2023)
Article
Engineering, Electrical & Electronic
Tonghuan Ran, Guangfeng Shi, Jieqiong Lin, Linghe Meng
Summary: In order to obtain high-resolution and high-precision images, an aviation remote sensing stabilization platform (ARSSP) is used to isolate unpredictable aerial camera movements. However, nonlinear interferences in the ARSSP system, such as interaxle coupling interference, adversely affect the imaging quality. To address this problem, a dynamic model of moment coupling between shafts is derived and a nonlinear cross feedback decoupling scheme is adopted. The results show that the SMC-CMAC significantly reduces the interaxle coupling effect and nonlinear interference, resulting in improved tracking performance of the ARSSP system.
Article
Engineering, Manufacturing
Mingxu Fan, Xiaoqin Zhou, Jinzhou Song, Shan Jiang, Ke Gao, Shunfa Chen
Summary: This study investigates the machining quality of glass-ceramic optical free-form surfaces using laser-assisted fast tool servo machining (LAFTSM) method. Orthogonal experiments were conducted and machining parameters were optimized using artificial neural network (ANN) and genetic algorithm (GA) methods. The results show that ANN performs better in predicting and optimizing minimum tool wear.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE
(2023)
Article
Optics
Mingxu Fan, Xiaoqin Zhou, Jinzhou Song
Summary: In this study, the cutting force of glass-ceramic in-situ laser-assisted machining (LAM) was investigated through orthogonal experiments and response surface methodology (RSM) was used to establish a regression model for predicting cutting force. The optimal machining parameters were obtained through RSM and artificial neural network (ANN) with high consistency between the model and experimental values. The study provides guidance and reference for glass-ceramic in-situ LAM and parameter optimization for cutting force.
OPTICS AND LASER TECHNOLOGY
(2024)
Review
Engineering, Mechanical
Dunlan Song, Hongguang Du, Jieqiong Lin, Xiaoqin Zhou, Rongqi Wang
Summary: The magnetorheological jet polishing (MJP) technique is a revolutionary flexible contact polishing approach suitable for the smooth and ultra-smooth machining of functional surfaces with tiny or microstructures. It does not require machine tool accuracy and offers advantages such as high efficiency, minimal surface damage, great surface shape adaptation, and superior material removal process selectivity.