Article
Engineering, Manufacturing
Mohsen Derakhshan-Samani, Abdolreza Rahimi
Summary: This research presents an improved design of the BEMRF tool for polishing borosilicate glass lenses. Through simulation and experimentation, it was found that the optimized fluid composition achieved a 59% improvement in surface roughness.
MATERIALS AND MANUFACTURING PROCESSES
(2023)
Article
Engineering, Mechanical
Rensheng Wang, Cong Sun, Shichao Xiu, Bo Li, Xiaohua Zhang
Summary: This study aims to investigate the effects of different processing parameters in the reciprocating magnetorheological polishing (RMRP) on the surface roughness and material removal rate of the workpiece. The results of the experiments show that the RMRP method is effective for polishing K9 glass, and the surface roughness of the workpiece can be significantly reduced by optimizing the processing parameters.
INDUSTRIAL LUBRICATION AND TRIBOLOGY
(2022)
Article
Engineering, Manufacturing
Mingming Lu, Xulong Zhuang, Jiakang Zhou, Jieqiong Lin, Weixing Li
Summary: A novel reciprocating cluster magnetorheological polishing device was developed to improve the surface quality of optical glass. A new removal model was established by analyzing the forces and motion behaviors of abrasive particles, and the effects of main parameters on the removal mechanism were investigated. Experimental results showed significant improvement on surface quality using this device and process.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE
(2023)
Article
Materials Science, Coatings & Films
Bingjin Yu, Yan Gu, Jieqiong Lin, Silin Liu, Sen Zhang, Mingshuo Kang, Yuan Xi, Yinghuan Gao, Huibo Zhao, Qingsong Ye
Summary: This study investigates the effect of magnetorheological polishing on the surface quality of CoCrMo alloy. By designing a polishing tool and planning a path, the polishing effect is optimized. The influence of different process parameters on polishing forces and surface roughness values is also studied. The results demonstrate the ability of magnetorheological polishing to improve the surface quality of CoCrMo alloys, providing guidance for the development of advanced biomedical implants.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Rensheng Wang, Cong Sun, Shichao Xiu, Shanshan Li, Bo Li, Dongming Liang
Summary: This study investigates the preparation and performance of magnetorheological polishing fluids (MRP fluids). The effects of different composition parameters on the polishing results of the workpiece surface are evaluated using experimental design and regression equation models. The optimal composition parameters are obtained by optimizing the regression models, and the correctness of the optimization results is validated through experimental verification.
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES
(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
Chemistry, Analytical
Rensheng Wang, Shichao Xiu, Cong Sun, Shanshan Li, Xiangna Kong
Summary: A new reciprocating magnetorheological polishing (RMRP) method for flat workpieces was proposed in this study. It was found that the rotational speed of the workpiece had a greater impact on material removal rate (MRR) compared to the eccentric wheel speed and eccentricity. The experimental results validated the MRR model and showed significant improvement in surface roughness under specific technical parameters.
Article
Optics
Qiang Liu, Zhiwei Dong, Zhen Chen, Yang Shen, Qiang Li, Peng An
Summary: This paper proposes a flow-focusing-assisted magnetorheological jet polishing method and studies the effects of parameters in the flow-focusing technique on the jet stability through computational fluid dynamics simulation and experiment.
Article
Engineering, Mechanical
Rensheng Wang, Cong Sun, Shichao Xiu, Qi Wang, Xiaohua Zhang, Qi Zhao
Summary: This paper aims to study the influence of different parameters of magnetorheological polishing fluids on the surface roughness and material removal rate in the reciprocating magnetorheological polishing process. Single-factor experiments are performed to evaluate the influence of magnetic particle concentration, abrasive particle concentration, and abrasive particle size. The yield stress and viscosity of the polishing fluids are also studied. The results show that a reasonable parameter of the polishing fluids is crucial to achieve desired surface roughness and material removal rate.
INDUSTRIAL LUBRICATION AND TRIBOLOGY
(2023)
Article
Engineering, Multidisciplinary
Yuanfan Guo, Shaohui Yin, Hitoshi Ohmori, Min Li, Fengjun Chen, Shuai Huang
Summary: Magnetorheological polishing is a potential low-damage manufacturing process, but achieving high efficiency material removal rate is challenging in practical applications. This work presents a novel high-efficiency magnetorheological polishing process that utilizes Halbach array as magnetic field excitation to improve processing efficiency. Experimental results show that the Halbach array provides a large-area, high-intensity magnetic field, leading to improved polishing performance and surface quality.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2022)
Article
Instruments & Instrumentation
Jinzhong Wu, Burhan Afzal, Zhilong Huang, Maoju Yang, Shuaishuai Sun
Summary: This study proposes a novel high-efficiency non-damage magnetorheological chemical polishing (MCP) process for high-quality and high-efficiency processing of gallium nitride (GaN) crystals. The effects of MCP fluid composition and key processing parameters on GaN crystal surface roughness and material removal rate (MRR) were explored experimentally. Results showed that a compound abrasive with silica fluid exhibited better polishing effects and the addition of NaOH solid particles improved the polishing efficiency. The MCP process achieved non-damage polishing of GaN crystals, improving the surface roughness from Ra 115 nm to Ra 0.375 nm after 4 hours of polishing. A prediction model for GaN crystal surface roughness in the MCP process was constructed with an overall difference of 11.6% between actual and predicted values.
SMART MATERIALS AND STRUCTURES
(2023)
Article
Multidisciplinary Sciences
Manjesh Kumar, Manas Das
Summary: This study investigates the super-finishing of glass-ceramic workpieces using rotational-magnetorheological glass-ceramic polishing (R-MRGP) process. Two different experimental setups are compared in terms of surface roughness, reflectance characteristics, topographical images, and material removal rate (MRR). Finite element analysis (FEA) is used to analyze the magnetic flux density, axial velocity, and shear stress. The study concludes that R-MRGP is a viable option for ultra-precision polishing of glass-ceramics, achieving excellent surface quality.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2022)
Article
Automation & Control Systems
Song Chen, Tianwu Cai
Summary: A planetary-type cluster magnetorheological polishing device with a rotating magnetic field was proposed to solve the problems of abrasive accumulation and low polishing efficiency caused by the untimely restoration of the conventional magnetic chain. A material removal rate model was established and verified by experiments, and the relationships between material removal rate or roughness and processing parameters were confirmed. After parameter optimization, the workpiece roughness was significantly reduced.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Instruments & Instrumentation
Bin Luo, Qiusheng Yan, Zhanliang Huang, Jisheng Pan, Youzhi Fu
Summary: Cluster magnetorheological finishing is utilized to achieve super-smooth and even surfaces efficiently. By utilizing a polishing disk with multiple holes and silica sols, the material removal rate is increased by 107% and the surface roughness is decreased by 11%, significantly improving the polishing effect.
SMART MATERIALS AND STRUCTURES
(2021)
Article
Automation & Control Systems
Zhiqiang Xu, Jun Wang, Qiuliang Wang, Heng Wu, Gaofeng Zhang, Shengqiang Jiang
Summary: The study introduced a new smart material-based abrasive tool named MREPCs, which can remove surface material with high precision and shows great potential for ultra-precision machining of small-sized parts.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Engineering, Mechanical
Peng Zhang, Gwanghee Lee, Chulhee Lee, Hyung Yoon
INDUSTRIAL LUBRICATION AND TRIBOLOGY
(2017)
Article
Materials Science, Multidisciplinary
P. Zhang, K. H. Lee, C. H. Lee
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2017)
Article
Engineering, Mechanical
Peng Zhang, Kwang-Hee Lee, Chul-Hee Lee
JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME
(2018)
Article
Chemistry, Multidisciplinary
Peng Zhang, Yu Zhen Dong, Hyoung Jin Choi, Chul-Hee Lee
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2018)
Article
Engineering, Mechanical
Peng Zhang, Zhichao Hu, Huanxiong Xie, Gwang-Hee Lee, Chul-Hee Lee
INDUSTRIAL LUBRICATION AND TRIBOLOGY
(2020)
Article
Engineering, Mechanical
Chenglong Lian, Kwang-Hee Lee, Chul-Hee Lee, Yongfeng Li, Peng Zhang
Summary: Magnetorheological elastomers (MREs) are smart materials that can change their stiffness and shear modulus by applying an external magnetic field, making them suitable for controlling rolling friction coefficient. The research shows that applying a magnetic field can adjust the rolling friction coefficient, expanding the range of control over rolling friction coefficient and slip rate in the system.
JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME
(2021)
Article
Agronomy
Hongbo Xu, Zhichao Hu, Peng Zhang, Fengwei Gu, Feng Wu, Wanli Song, Chunci Wang
Summary: By optimizing key parameters of the straw back-throwing device and using the Box-Behnken central combination test method, mathematical models were built and optimized using a multi-objective quantum behaved particle swarm optimization (QPSO) in order to reduce operation energy consumption.
Article
Agronomy
Peng Zhang, Hongbo Xu, Zhichao Hu, Youqing Chen, Mingzhu Cao, Zhaoyang Yu, Enrong Mao
Summary: The study found that dust particles discharged during mechanized peanut harvesting are mainly concentrated within the size range of 2~30 μm, and reducing wind speed may carry larger particles downwind. The silica content in the dust samples exceeded the limit. It is recommended to reduce agricultural operations during periods of high wind speed, low crop moisture content, and low air humidity.
Article
Agricultural Engineering
Hongbo Xu, Peng Zhang, Zhichao Hu, Enrong Mao, Jianchun Yan, Hongguang Yang
Summary: Self-propelled peanut combines can improve production efficiency, but they also emit a large amount of dust, causing detrimental environmental changes. This study used sampling and simulation to evaluate the diffusion and distribution of dust from a peanut combine. The results showed that the angle between the dust outlet and the ground and the diameter of the dust outlet are important factors affecting the dust concentration and deposition rate. The study provides a reference for formulating and evaluating dust suppression schemes for self-propelled peanut combines.
BIOSYSTEMS ENGINEERING
(2022)
Article
Agronomy
Peng Zhang, Hongbo Xu, Xiaoru Zhuo, Zhichao Hu, Chenglong Lian, Bing Wang
Summary: This study focuses on the analysis of impact-friction contact characteristics during peanut fruit picking and finds that the coefficient of friction of peanuts and the wear loss of peanut pods are the main factors affecting picking damage. The experimental results and discussion can provide data reference for the development and design of peanut mechanization production equipment.
Article
Materials Science, Multidisciplinary
Xiaoru Zhuo, Cong Shao, Peng Zhang, Zhichao Hu, Huan Liu
Summary: An Mg-5Sn alloy was processed by ECAP, and the microstructure evolution and mechanical properties were studied. The grain size, amount of Mg2Sn precipitates, and texture varied with the number of passes. ECAP alloys showed improved strengths due to various strengthening mechanisms. The UTS increased while the EL decreased with increasing ECAP pass.
Article
Agronomy
Chenglong Lian, Wei Zhao, Shumei Wang, Peng Zhang, Xiaoying Dong, Yongfeng Li
Summary: This study found that wheat straw powder third body plays an isolation and buffering role in metal friction pairs, reducing the friction coefficient and wear. The particle size has no significant effect on wear when lubricants are added.
Article
Chemistry, Physical
Xiaoru Zhuo, Cong Shao, Peng Zhang, Zhichao Hu, Huan Liu
Summary: This study investigated the effect of different rolling reductions on the microstructure and mechanical performance of Mg-5Sn alloy. The results show that increasing rolling reduction leads to a decrease in grain size, an increase in the area fraction of Mg2Sn particles and dislocation density, and an enhancement in yield strength and ultimate tensile strength. Conversely, the elongation decreases. The alloy with a rolling reduction of 70% exhibits the highest strength of 310 MPa and an elongation of 8.4%. The strength enhancement is attributed to precipitation strengthening, grain refinement strengthening, and dislocation strengthening.
Article
Environmental Sciences
Hongbo Xu, Peng Zhang, Zhichao Hu, Enrong Mao, Zhaoyan You, Yuefeng Du
Summary: A total amount dust collection method based on the combined action of centrifugation and filtration was proposed in this study. The structural parameters of a total amount dust collection device were designed and tested on a peanut whole-feed harvester. The results showed that the device met the requirements for dust emission characteristics research and revealed that the emitted particles were a mixture of soil particles and fiber particles.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
