磁流变抛光头形状对加工表面粗糙度的影响

Influence of the Shape of Polishing Tools on the Surface Roughness in Magneto-rheological Finishing

设计了4种不同形状的抛光头,并使用自制的磁流变抛光液体在三轴数控铣床上对K9平面玻璃进行了磁流变抛光工艺试验.分析了在不同的磁场强度、磁极转速,加工间隙等多种情况下抛光头形状对加工表面粗糙度的影响.试验结果表明:槽型平面抛光头的抛光效果最好;同等条件下,在抛光头上开槽能有效地提高加工效率和加工质量.

Four polishing tools with different shapes were designed for the magneto rheological finishing test of K9 flat glass by using a 3-axis CNC milling machine with developed magneto-rheological fluid. The influence of the shape of polishing tools on the surface roughness was investigated in terms of magnet- ic intensity, working gap and the rotational speed of magnetic pole. Polishing results have shown that flat polishing tool with crossed grooves is the most effective. Under similar conditions, the flat polishing tool with crossed grooves can effectively improve machining efficiency and quality.