随着对复杂曲面零件超精密加工需求增加以及对表面质量要求的不断提升，需要探索高质量、高效率、低成本、绿色环保的新型抛光方法。本项目提出一种磁流变-剪切增稠协同复合抛光方法，通过磁场控制抛光液的剪切增稠强度，极化成链强化磨粒协同作用，提升加工质量和效率，实现复杂曲面零件的超精密加工。项目将研究磁场对剪切增稠分散相、磨粒和磁性颗粒的剪切增稠演变机制，优化磁流变-剪切增稠抛光液协同耦合作用的流变特性；研究基于磁场协同剪切增稠作用下的材料去除机理和表面/亚表面的演化机制，构建材料去除和表面粗糙度预测模型；研究磨粒的失效行为和磨损规律，构建磨粒磨损模型；通过分析加工工艺参数对于材料去除率和表面/亚表面质量的影响规律，优化磁流变-剪切增稠协同复合抛光加工工艺参数。研究成果对于建立拥有自主知识产权的复杂曲面超精密高效加工技术体系，丰富超精密加工技术具有重要的理论意义和科学价值。

With the increasing demand for complex curved surface ultra-precision components, and the continuous improvement of surface quality requirement, new environment friendly polishing methods of high efficiency and high quality need to be explored. This project presents Magnetorheological-Shear Thicken Polishing (MR-STP). Shear thickening will be controlled by magnetic field, and polishing fluid will be polarized into chain synergy to strengthen grits function. Machining quality and efficiency will be improved, and complex curved surface parts will be ultra-precision polished. Firstly shear thickening mechanism under magnetic field will be researched and the rheological properties of shear thickening fluid coupling action also will be optimized. Mechanism of material removal and surface/subsurface formation will be investigated based on the magnetic field in collaborative thickening polishing process, and material removal model and surface roughness prediction model will be built. And then the failure behavior and the wear of abrasive will be also studied, abrasive wear model will be developed. By analyzing the machining process parameters for surface/surface quality and the material removal rate, Magnetorheological-Shear Thickening Polishing (MR-STP) processing parameter will be optimized for realizing complex curved surface with high efficiency and high quality. Through the research, its research results are of important theoretical significance and scientific value to build complex curved surface ultra-precision machining technology system with independent intellectual property rights, and to rich ultra-precision machining technology.