Article
Engineering, Manufacturing
Jinhuan Xu, Jianyong Li, Meng Nie, Yueming Liu
Summary: The material removal process of magnetorheological foam plane finishing (MRFPF) method considering various processing conditions was investigated. A material removal rate (MRR) model based on the updating type of workpiece moving trajectory, magnetic field distribution, and polishing speed in the polishing area was established. The MRR is generated by integrating the polishing pressure and speed over the time that polishing pressure on the workpiece updating for 1 cycle, with a relative error between theoretical and experimental results less than 11.63%. Moreover, MRFPF can achieve much higher MRR and surface flatness improvement rate than that of magnetorheological finishing (MRF) under different processing conditions, indicating the effectiveness of MRFPF in planar finishing.
JOURNAL OF MANUFACTURING PROCESSES
(2023)
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
Engineering, Mechanical
Mingshuo Kang, Yan Gu, Jieqiong Lin, Xiaoqin Zhou, Sen Zhang, Huibo Zhao, Zhen Li, Bingjin Yu, Bin Fu
Summary: This study aims to research the material removal mechanism of non-resonant vibration-assisted magnetorheological finishing (NVMRF) of SiC ceramics for improving their surface quality and finishing efficiency. A theoretical model of the polishing forces considering the vibration was proposed, and a theoretical model of material removal rate (MRR) based on the Preston equation was proposed for quantitative analysis. Furthermore, a theoretical model and the smoothed-particle hydrodynamics (SPH) simulation of a single diamond abrasive were proposed to explain the reasons for the increase in the MRR. Combined with designed processing experiments, introducing the vibration can enhance the normal force and total shear force, leading to improvement in the MRR, surface quality, and subsurface damage (SSD).
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
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
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
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
Automation & Control Systems
Bin Luo, Qiusheng Yan, Jingfu Chai, Wenqing Song, Jisheng Pan
Summary: With the demand for high-performance optoelectronic devices, the new generation of optoelectronic wafers needs to have ultra-smooth surfaces with sub-nanometer roughness. However, traditional cluster magnetorheological finishing (MRF) methods face the challenge of reduced efficiency. To address this issue, a novel method based on a circular array of holes in the polishing disk is proposed. By optimizing the parameters and establishing relevant models, high-efficiency and high-quality planarization processing can be achieved.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Qikai Li, Xiaoyuan Li, Zuoyan Ye, Lili Wang, Jinlong Pan, Yunfei Zhang, Minheng Ye, Chao Wang
Summary: This study investigates the impact of nanodiamond abrasive agglomeration on the material removal rate in magnetorheological finishing (MRF) through both experimental and molecular dynamic simulation (MDS) approaches. A novel active abrasive contact sites model is proposed to simulate the material removal rate, showing good agreement with experimental results. This work provides insights into controlled nanoscale material removal and atomic adhesion friction mechanism in MRF.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Engineering, Mechanical
Weifeng Yao, Qingqing Chu, Binghai Lyu, Chengwu Wang, Qi Shao, Ming Feng, Zhe Wu
Summary: This paper investigates the material removal and surface roughness in cylindrical polishing using a soft pad and free abrasives. The study proposes models for material removal and surface roughness, taking into account the contact deformation at different scales. Experimental and simulation results verify the accuracy of the models. The influence of loading force, abrasives concentration, and grain size on material removal and surface roughness is analyzed, along with parameters related to contact under different conditions.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Automation & Control Systems
Limin Zhang, Weixing Li, Mingming Lu, Jieqiong Lin, Yuyang Liu, Changqing Liu
Summary: A new material removal rate (MRR) model is established in this paper to investigate the removal mechanism of fused silica glass. The model considers the influence of average load and magnetic interaction force based on fluid mechanics and Preston's equation. A suite of experiments is conducted to validate the validity of the MRR model, and the experimental results are highly consistent with the model results.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Optics
Prabhat Kumar Baghel, Khushwant Singh Gavel, Gufran Sayeed Khan, Raj Kumar
Summary: Aline contact ring magnetorheological finishing (RMRF) process is a technique for finishing precision optical surfaces. The process utilizes the line contact interaction between the workpiece and magnetorheological fluid to achieve a polishing mechanism. By optimizing machine parameters, the material removal rate can be increased. In practical applications, the RMRF process significantly improves the surface roughness and figure error of glass optics.
Article
Engineering, Mechanical
Gourhari Ghosh, Ajay Sidpara, P. P. Bandyopadhyay
Summary: In this study, magnetorheological finishing (MRF) of WC-Co coating was carried out with theoretical models proposed for better understanding of the finishing mechanism. The models were experimentally verified and showed good correlations with the experimental values. The areal surface roughness of the coating was reduced to 130 nm by performing MRF with diamond abrasives.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2021)
Article
Engineering, Manufacturing
Ankit Aggarwal, Anant Kumar Singh
Summary: A new magnetorheological finishing (MRF) process was developed in this study, utilizing a grinding wheel type single magnetic tool to fine finish the inner surfaces of cylindrical blind holed (CBH) components. The innovative aspect lies in the design of a grinding wheel type magnetorheological finishing (GWMRF) tool with V-shaped grooves for enhanced retention of magnetorheological polishing fluid. The experimental results show significant improvement in surface roughness values after using the V-grooved GWMRF tool, indicating the potential usefulness of the developed process in industries for fine finishing CBH workpieces.
MATERIALS AND MANUFACTURING PROCESSES
(2021)
Article
Engineering, Mechanical
Manjesh Kumar, Rahul Kumar Bharti, Manas Das
Summary: This study utilized a novel uniform flow restrictor for the nano-finishing of miniature gears, ensuring consistent and precise polishing to improve gear surface quality. Experimental results showed that the new method effectively reduced surface roughness and completely eliminated manufacturing defects.
Article
Optics
Zhifan Lin, Hao Hu, Yifan Dai, Zhong Yaoyu, Shuai Xue
Summary: This paper developed a theoretical model to describe the material removal rate and surface quality after Magnetorheological finishing (MRF) in order to better understand the material removal mechanism. Experimental results were highly consistent with the theoretical model calculated results, making the theoretical model a reference for high-efficiency and ultra-smooth MRF process.