An ultrasonic-assisted soft abrasive flow processing method for mold structured surfaces

Li, Jun; Zhu, Fangming; Yu, Jingkun

doi:10.1177/1687814018814953

Cited by 8 publications

(3 citation statements)

References 54 publications

(54 reference statements)

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“…With the development of electronics and optical industry, the high-quality and high-efficiency polishing technologies of flat and curved surfaces are in high demand. 1,2 Magnetorheological finishing (MRF) is a flexible polishing technology in which material is removed by mutual friction between the workpiece surface and the hardened MR fluid in the presence of a magnetic field. MRF is regarded as a high-quality, non-damage, ultra-precision polishing process based on viscoplastic MR polishing tool.…”

Section: Introductionmentioning

confidence: 99%

Study on magnetorheological nano-polishing using low-frequency alternating magnetic field

Yin

Yang

et al. 2020

Advances in Mechanical Engineering

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With the development of electronics and optical industry, the high-efficiency ultra-precision polishing technologies of flat and curved surfaces are in high demand. The traditional magnetorheological polishing technology, using flexible polishing head, has the disadvantages of low polishing efficiency and small processing area. In this study, a novel tray-type magnetorheological polishing process using low-frequency alternating magnetic field excitation was developed to improve the efficiency of magnetorheological polishing for large surfaces and to make polishing magnetorheological cluster generate a cyclical fluctuation up and down, and then improve the cross-cutting effects of abrasives. With the developed excitation system, a large bowl-shaped varying magnetic field was generated in the working area, and the effects of current frequency, working gap, trough rotation speed, and workpiece rotation speed on the improvement rate of surface roughness and material removal rate were systematically investigated. A series of experiments were conducted on K9 glass specimens to verify the polishing performance. Experimental results show that the surface roughness of K9 glass was improved from 567.08 to 9.63 nm in 120 min.

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Section: Introductionmentioning

confidence: 99%

Study on magnetorheological nano-polishing using low-frequency alternating magnetic field

Yin

Yang

et al. 2020

Advances in Mechanical Engineering

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“…Shiming Ji from Zhejiang University of Technology proposed a new method called the soft abrasive flow (SAF) finishing. [4][5][6] Based on this, Li et al 7 improved this method by adding ultrasonic field. Also, Zhang et al 8 studied the process of abrasive flow machining for the titanium alloy artificial joint surface and provided the basis for optimizing the structure of the flow channel.…”

Section: Introductionmentioning

confidence: 99%

Research on the incidence of soft abrasive flow to a wall and the machining characteristics

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part B:

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In this study, a calculation model was proposed to predict the motion locus of particles moving to a wall in boundary layers. The velocity of soft abrasive flow and the incident angle of the particles were obtained based on the results calculated by the mixture model and realizable k–ε model. After the model formed, the distributions of the dynamic pressure and the volume fraction of abrasive particles were analyzed and compared to experimental results. After analysis, it was found that the amount of removed material is positively correlated with the incident velocity and the volume fraction of abrasive particles, as well as the dynamic pressure on the surface of the workpiece. In addition, the comparison shows that the numerical simulation method is feasible to predict the flow field and effect of soft abrasive flow. In addition, it was found that the simulation results are consistent with the flow field distribution and machining effect. Therefore, this model can be used in design of constrained modules.

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“…Other than the above-mentioned four types of AFM process, there have also been developed some other AFM variants in order to compensate for the MRR and also for a longer finishing time. The variants of the AFM process have few external assistants, such as ultrasonic vibrations [62][63][64], the rotational effect [65][66][67], magnetic field assistance [39,68,69], and also the hybrid variant of the AFM process [54,[70][71][72]. The external assistance is found to show the increase in the finishing force [73][74][75], abrasive velocity, enhancement in the contact length among the work surface as well as abrasive, active density of abrasive, or utilization of the synergic effect of two processes in order to eradicate the material [76].…”

mentioning

confidence: 99%

Understanding the Mechanism of Abrasive-Based Finishing Processes Using Mathematical Modeling and Numerical Simulation

Hashmi

Mali

Meena

et al. 2022

Metals

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Recent advances in technology and refinement of available computational resources paved the way for the extensive use of computers to model and simulate complex real-world problems difficult to solve analytically. The appeal of simulations lies in the ability to predict the significance of a change to the system under study. The simulated results can be of great benefit in predicting various behaviors, such as the wind pattern in a particular region, the ability of a material to withstand a dynamic load, or even the behavior of a workpiece under a particular type of machining. This paper deals with the mathematical modeling and simulation techniques used in abrasive-based machining processes such as abrasive flow machining (AFM), magnetic-based finishing processes, i.e., magnetic abrasive finishing (MAF) process, magnetorheological finishing (MRF) process, and ball-end type magnetorheological finishing process (BEMRF). The paper also aims to highlight the advances and obstacles associated with these techniques and their applications in flow machining. This study contributes the better understanding by examining the available modeling and simulation techniques such as Molecular Dynamic Simulation (MDS), Computational Fluid Dynamics (CFD), Finite Element Method (FEM), Discrete Element Method (DEM), Multivariable Regression Analysis (MVRA), Artificial Neural Network (ANN), Response Surface Analysis (RSA), Stochastic Modeling and Simulation by Data Dependent System (DDS). Among these methods, CFD and FEM can be performed with the available commercial software, while DEM and MDS performed using the computer programming-based platform, i.e., “LAMMPS Molecular Dynamics Simulator,” or C, C++, or Python programming, and these methods seem more promising techniques for modeling and simulation of loose abrasive-based machining processes. The other four methods (MVRA, ANN, RSA, and DDS) are experimental and based on statistical approaches that can be used for mathematical modeling of loose abrasive-based machining processes. Additionally, it suggests areas for further investigation and offers a priceless bibliography of earlier studies on the modeling and simulation techniques for abrasive-based machining processes. Researchers studying mathematical modeling of various micro- and nanofinishing techniques for different applications may find this review article to be of great help.

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An ultrasonic-assisted soft abrasive flow processing method for mold structured surfaces

Cited by 8 publications

References 54 publications

Study on magnetorheological nano-polishing using low-frequency alternating magnetic field

Study on magnetorheological nano-polishing using low-frequency alternating magnetic field

Research on the incidence of soft abrasive flow to a wall and the machining characteristics

Understanding the Mechanism of Abrasive-Based Finishing Processes Using Mathematical Modeling and Numerical Simulation

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