A novel micro-machining technology based on the magnetorheological effect of abrasive slurry

作者：Lu J.B.; Yan Q.S.; Yu J.; Gao W.Q.

来源：6th International Conference European Society for Precision Engineering and Nanotechnology, EUSPEN 2006, 2006-05-28 to 2006-06-01.

• Abrasive particles
• Abrasive slurries
• Magnetic particle
• Magneto-rheological
• Magnetorheological effects
• Material removal
• Material removal process
• Relative velocity

Based on the magnetorheological (MR) effect of abrasive slurry, an innovative micro-machining method is presented. In this technique, the particle-dispersed MR fluid is used as a special instantaneous bond to cohere abrasive particles and magnetic particles so as to form a dynamical flexible tiny-grinding wheel to polish optical glass, ceramic and other brittle materials of millimeter or sub-millimeter scale with a high efficiency. The machined surface with convex center and concave perimeter demonstrates that the material removal process is dominated by the synergy of the applied pressure and the relative velocity between the abrasives and workpiece. The performance of the tiny-grinding wheel depends on the machining gap between the workpiece and the needle-like tool. In the case of glass finishing, the mode of material removal is found to be plastic, and controlled by the abrasive-wear mechanism.

• 出版日期2006