Experimental investigation of the magnetorheological polishing process with roller

Abstract

Purpose This paper aims to develop a new magnetorheological polishing (MRP) device with roller and investigate the polishing mechanism of MRP fluids using this new device. Design/methodology/approach The principle of MRP process with roller is discussed, and then the structure of the polishing device is designed in detail. The polishing experiments of K9 glass are carried out using MRP device with roller. Findings A series of tests are performed to evaluate the effect of the excitation gaps, working gap and polishing time on the polishing characteristics, and the optimized polishing parameters can be obtained. The surface roughness Ra of the sample is reduced from 359 to 38 nm under optimized polishing parameters. Originality/value MRP method with roller is proposed in this paper, and the MRP device with roller can reduce the surface roughness Ra significantly. After being polished, the circular ring-shaped polishing belt disappears on the workpiece surface, which means it has great potential for polishing.

Annular Surface Micromachining of Titanium Tubes Using a Magnetorheological Polishing Technique

“…Cerium oxide abrasive particles may be added into the MR polishing fluid to polish a silicon sample or other related silicate glasses [15], whereas SiC or diamond abrasive particles are typically used to polish metal materials [16][17][18] In recent years, several methods of polishing the internal surfaces of cylindrical workpieces using MR polishing have been reported. For example, a magnetorheological abrasive flow finishing (MRAFF) process was developed to polish workpieces with complex internal geometries [19,20]. The MR polishing fluid carried out reciprocating linear motion by using a hydraulically powered device.…”

Experimental study on reciprocating magnetorheological polishing

“…Thus far, most of the existing MRP methods are mainly divided into the vertical wheel polishing and the horizontal wheel polishing methods (Harris, 2011), and many researchers have designed various MRP devices based on the MRP methods. Song et al (2018) developed a new magnetorheological polishing device with roller, and the optimized polishing parameters were obtained by some tests. Ghosh et al (2018) designed a horizontal wheel type MRP device, and the effect of the selected parameter setting on the surface topography was studied.…”

Enhanced Magnetorheological Behavior of a Carbonyl‐Iron‐Based Fluid via Addition of Fe3O4/Halloysite‐Nanotube Composite Particles

“…Owing to the rapid response, excellent reversibility, and continuous control of the mechanical properties of MRFs through magnetic fields, they have received widespread attention in recent years in several fields, such as automobiles, bridge construction, and precision machining. [6][7][8][9] In general, high yield stress and sedimentation stability are the two most significant characteristics of MRFs. [10] Among the numerous promising magnetic particles, micron-sized carbonyl iron (CI) particles are the preferred choice for MRFs because of their high saturation magnetization, ideal size, and low cost.…”

“…Owing to the rapid response, excellent reversibility, and continuous control of the mechanical properties of MRFs through magnetic fields, they have received widespread attention in recent years in several fields, such as automobiles, bridge construction, and precision machining. [ 6–9 ]…”