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磁粉离合器密封环(图1)的材料 H22,是一种粉末冶金的钡铁氧体恒磁材料.这种永磁铁材料硬而脆,切削加工时对刀具磨损十分严重,还会造成工件掉边碎裂。为解决此问题我们进行了反复的切削试验,采取优选刀具材料、刀具角度、切削用量和合理的装夹方法等措施,取得了较好的结果,制订了工艺规程。目前我国钡铁氧体恒磁材料的生产量较大,且质量已接近国外先进水平,价格也较便宜,使用日趋普遍.为此,我们将永磁铁切削加工方面的技术资料介绍于下,供有关方面参考.一、银铁氧体材科的成分和机械性能长春磁性材料厂生产的 H20(部标牌号 Y15)永磁铁的主要成分为 Fe_2O_3和5.5～6%的 BaO 等。它的主
Material H22 of the magnetic clutch sealing ring (Figure 1) is a powder metallurgy barium ferrite magnetic material, which is hard and brittle. It is very wear and tear on the tool during cutting, and can also cause the workpiece to fall off Fragmentation. To solve this problem, we conducted repeated cutting tests, taking the best tool material, tool angle, cutting dosage and reasonable clamping methods and other measures, and achieved good results, formulated the process specifications. At present, China’s barium ferrite constant magnetic material production capacity, and the quality is close to foreign advanced level, the price is cheaper, the use of increasingly common.To this end, we will permanent magnet cutting technology information in the next, for For reference: 1. Composition and Mechanical Properties of Silver Ferrite Materials The main components of H20 (part number Y15) permanent magnet produced by Changchun Magnetic Material Factory are Fe 2 O 3 and 5.5 ~ 6% BaO. It’s Lord