| Citation: | CAO Shuntao, CHEN Guanci, LI Mingchun. Design and simulation of magnetorheological polishing excitation device based on permanent magnet[J]. Diamond & Abrasives Engineering, 2023, 43(4): 504-513. doi: 10.13394/j.cnki.jgszz.2022.0195
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As the core component of magnetorheological polishing equipment, the key factor determining the success of magnetorheological polishing is whether the excitation device can generate a stable and uniform high gradient magnetic field. The sector permanent magnet was used to design the excitation device of the magnetorheological polishing wheel. The ANSYS Electronics Desktop and other softwares were used to simulate and analyze the excitation device various aspects, including the number of permanent magnets, magnetization modes, arrangement modes, and air gap widths. The magnetic induction lines and magnetic induction intensity distribution under different working conditions were obtained. The results show that when the air gap width is 4 mm, the magnetic induction intensity produced by axial magnetization of a single permanent magnet is the largest, reaching 358.4 mT. Theoretically, a polishing ribbon with a width of 26 mm and a height of 6.0 mm can be formed on the surface of the polishing wheel.
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