This paper discusses the principle of magnetorheological (MR) polishing, which is widely used in the production of precision optics, and also presents the results of processing optical items of complex shape. The concept of ablation of material from the surface to be processed, based on the principle of conservation of momentum by the particles of a binary abrasive suspension, is considered in the theoretical part as applied to the method of MR polishing. According to the proposed model, the forces normal to the surface required for the incorporation of abrasive particles into the material being polished are provided by their interaction near the surface with the more massive baseline (magnetic) particles, which in the shear flow of the concentrated suspension are subject to fluctuations and exchange momentum with the abrasive particles.
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