Abstract

This paper studies the influencing factors on the magnetic material (nickel-phosphorus coated SKD11 steel) polishing process were determined by investigating the distribution of magnetic iron (MIGs) and abrasive grains (AGs) in the working surface of magnetic liquid slurry (MLS). The influence of the factors, namely the diameters of the MIGs and the AGs and working distance (K), on the polishing surface quality was assessed by fuzzy gray analysis. Results showed that the values of the fuzzy gray relationships with the factors were 0.6361, 0.5181, 0.8804, and 0.6464. Result showed that the fuzzy gray relationship point of factors known as K exerted the most remarkable influence on the polishing effect, whereas the effect of MIG diameter was insignificant. The experimental results indicated that MLS containing MIGs with a diameter of 5 μm, AGs with a diameter of 1.5 μm and K = 1 mm should be prepared to create a mirror surface with nickel–phosphorus coated SKD11 steel. An extremely smooth mirror surface with Ra = 0.926 nm is produced under these experimental conditions, leaving no scratches and impurities on the machined surface. The proposed polishing method that uses MLS with MIGs and AGs (which are low-cost and commercially available) is suitable and effective for polishing the surface of magnetic materials with extremely high accuracy.

摘要

本文通过研究磁性液体浆料（MLS）工作面中磁铁（MIGs）和磨粒（AGs）的分布情况，确定了磁性材料（镀镍磷SKD11钢）抛光工艺的影响因素。因素的影响，即 MIG 和 AG 的直径和工作距离（K)，对抛光表面质量进行了模糊灰色分析。结果表明，与因子的模糊灰色关系值分别为0.6361、0.5181、0.8804和0.6464。结果表明，K因子的模糊灰色关系点对抛光效果的影响最为显着，而MIG直径的影响不显着。实验结果表明，应制备含有直径为 5 μm 的 MIG、直径为 1.5 μm 和 K = 1 mm 的 AG 的 MLS，以在镀镍磷的 SKD11 钢上形成镜面。具有Ra的极其光滑的镜面 = 0.926 nm 在这些实验条件下产生，在加工表面上没有留下划痕和杂质。所提出的将 MLS 与 MIG 和 AG（低成本且可商购）结合使用的抛光方法适用于并有效地以极高的精度抛光磁性材料的表面。