Magnetorheological fluid polishing using an electromagnet with straight pole-piece for improving material removal rate

초록

Mechanical grinding techniques can cause residual stress, micro-cracks, and work hardening in workpieces. Processes employing magnetorheological (MR) fluid aim to reduce subsurface damage by avoiding the direct application of mechanical force. However, the material removal rate (MRR) achieved with processes such as MR fluid polishing is relatively low. In this study, operating conditions to improve MRR are analyzed using the design of experiments method. Through experiment, and using factorial analysis, it is concluded that MRR depends on magnetic field strength, depth of polishing, and polishing time. Based on these results, a re-designed electromagnet is proposed, analyzed, and tested.

키워드