Research on surface magnetorheological polishing technology for optical grade components

Abstract

Optical grade components face significant challenges in manufacturing due to hard and brittle material properties and stringent requirements for damage-free surfaces. Most existing manufacturing methods have limitations in manufacturing cost and efficiency. Therefore, a multi-parameter synergistic control of the magnetorheological polishing (MRP) method is proposed, to optimize the excitation performance of the excitation device through magnetic field simulation, to regulate the anti-settling characteristics of the MRP fluid by combining with additive ratios, and to systematically investigate the influence of multi-dimensional parameters such as kinematic parameters of the polishing device, process parameters and so on, on the polishing effect. The regulation mechanism of magnetic flux density and particle size on the structure of magnetic chains is revealed by Monte Carlo simulation. The further established mesh density model of abrasive particle motion trajectory provides the theoretical basis for the synergistic optimization of the multi-parameters. This study provides a systematic experimental and theoretical method for the ultra-precision machining of optical components. It provides new ideas for the application of MRP technology in the machining of other hard and brittle materials.