Investigation of the polishing mechanism of magnetorheological elastic polishing composites

Xu, Zhiqiang; Wang, Jun; Wang, Qiuliang; Wu, Heng; Zhang, Gaofeng; Jiang, Shengqiang

doi:10.1007/s00170-021-07909-3

Cited by 3 publications

(2 citation statements)

References 28 publications

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“…To suppress the vibration during turning process, Vasanth et al [20] developed an MRE damper and determined the optimal cutting parameters, and the experimental results showed that the tool vibration was mitigated by 60% and the cutting performance was improved significantly. Xu et al [21] proposed a new smart material-based abrasive tool using the MRE composites to restrain the vibration in polishing, and experimental results demonstrated that the MRE had broad application prospects in ultra-precision machining of complex small parts.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on vibration suppression for robotic milling using an MRE absorber

Zhao,

Tian,

Liu

et al. 2023

Smart Mater. Struct.

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During the robotic milling process, vibration is one of the main factors that affect the machining accuracy and surface quality due to the low stiffness of the robot structure. Intelligent material, magnetorheological elastomer (MRE), owns the features of adjustable stiffness, reversible and fast response, has been gradually used for vibration suppression. Therefore, to suppress the forced vibration for robotic milling, this paper used the principle of vibration absorption and combined it with MRE material to design a snubber. A series of excitation and milling experiments were carried out to evaluate its vibration attenuation characteristics. In the excitation experiment, sine signals with frequencies of 40 Hz, 42.02Hz and 60Hz with the same amplitude of 5N were applied to the MRE absorber. In the milling experiment, the dominant frequencies under speeds of 800RPM, 840RPM and 1200RPM were analyzed first. Then, the vibration mitigation characteristics of MRE absorber during robot milling of aluminum alloy were explored by adjusting the current. Experimental results showed that under the action of MRE absorber, the acceleration responses are suppressed effectively. In detail, after tuning the current, the amplitude and the root mean square of vibration acceleration in three directions of sinusoidal excitation could be suppressed by more than 19.23% and 7.35% correspondingly. The power spectral density value of the peak frequency could be reduced by more than 69.13%. In milling experiments, the MRE absorber also achieved certain vibration absorption effects. Furthermore, the surface roughness of the workpiece was also fallen by more than 16.51% which provides support for further engineering application in the field of robotic milling. Undoubtedly, the absorber needs further optimization to achieve better vibration suppression ability and a larger working bandwidth.

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Section: Introductionmentioning

confidence: 99%

Experimental study on vibration suppression for robotic milling using an MRE absorber

Zhao,

Tian,

Liu

et al. 2023

Smart Mater. Struct.

View full text Add to dashboard Cite

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“…As a polishing tool, an MRE can be used to control the polishing efficiency and quality by adjusting its hardness according to the magnetic field strength. Xu et al [7,8] developed an MRE polishing wheel with a silicone rubber matrix to polish titanium alloy workpieces, showing that applying a magnetic field can increase the hardness of the MRE and subsequently help obtain superior workpiece surface quality. Chen et al [9] developed a ring-shaped polishing wheel tool to polish optical glasses and found that the higher shear strength of the MRE contributed to the formation of polished band patches with superior material removal compared with that of magnetorheological fluid polishing.…”

Section: Introductionmentioning

confidence: 99%

Study on heterogeneous Fenton reaction parameters for polishing single-crystal SiC using magnetorheological elastomers polishing pads

Hu¹,

Li²,

Lu³

et al. 2022

Smart Mater. Struct.

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Magnetorheological elastomers (MRE) are intelligent controllable materials used as polishing pads in chemical mechanical polishing (CMP), and the magnetic particles in the MRE polishing pad are used as solid-phase catalysts for heterogeneous Fenton reactions for oxidizing single-crystal SiC surfaces, thereby helping reduce the processing difficulty and obtain high-quality surfaces. The influence of the solid-phase catalyst (Fe3O4 mass fraction, particle size) and polishing solution environment (H2O2 concentration, pH value) on the CMP heterogeneous Fenton reaction polishing single-crystal SiC were investigated. The material removal behavior of the MRE polishing pad was investigated. The results demonstrated that the solid-phase catalyst, Fe3O4, has a better superior effect than the carbonyl iron powder (CIP). The polishing material removal rate (MRR) increased and the surface roughness (Ra) decreased with an increase in the Fe3O4 mass fraction. Superior polishing results were obtained at a particle size of 0.3 μm. The higher the H2O2 concentration in the polishing solution, the greater the MRR, with lower Ra at 10% concentration. The highest MRR and lowest Ra were achieved at pH = 3 in acidic environments. During polishing, the heterogeneous Fenton reaction can significantly enhance the removal ability of polishing materials. The MRR increased by 33.4% with the heterogeneous Fenton reaction compared with those without the heterogeneous Fenton reaction, and the contribution of the heterogeneous Fenton reaction to total material removal was 25.03%. The analysis of the SiC–Abrasive–MRE polishing pad contact state revealed that the heterogeneous Fenton reaction can oxidize the SiC surface and reduce the surface hardness, increasing the indentation depth δwa of the abrasive grain into the SiC surface and exhibiting greater material removal.

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Magnetorheological elastomer absorber-based chatter suppression in robotic milling

Zhao,

Li,

Tian

et al. 2024

Robotics and Computer-Integrated Manufacturing

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Investigation of the polishing mechanism of magnetorheological elastic polishing composites

Cited by 3 publications

References 28 publications

Experimental study on vibration suppression for robotic milling using an MRE absorber

Experimental study on vibration suppression for robotic milling using an MRE absorber

Study on heterogeneous Fenton reaction parameters for polishing single-crystal SiC using magnetorheological elastomers polishing pads

Magnetorheological elastomer absorber-based chatter suppression in robotic milling

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