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文章探讨陶瓷结合剂cBN砂轮的组织均匀性对其磨削性能的影响。为了弄清组织均匀性对磨削中切刃特性的影响,用按传统制造法和新开发的“涂覆法”制作的两种cBN集束砂轮(“传统集束砂轮”和“均匀集束砂轮”)进行集束磨削试验。均匀集束砂轮磨削时平均磨粒切刃径向磨损小于传统集束砂轮。此外,通过砂轮组织的均匀化,发生在砂轮工作面上的cBN磨粒的破碎和脱落受到了抑制,因此均匀集束砂轮磨削时各磨粒切刃径向磨损的变化比传统集束砂轮小。
The article discusses the influence of the microstructure uniformity of the cBN grinding wheel on the grinding performance. In order to clarify the influence of the uniformity of the microstructure on the characteristics of the cutting edge during grinding, two types of cBN cluster wheel (“conventional cluster wheel” and “traditional cluster wheel”) manufactured by a conventional manufacturing method and a newly developed “coating method” Uniform cluster wheel ") cluster grinding test. The average abrasive grain radial wear of the uniform cluster grinding wheel is smaller than that of the traditional cluster grinding wheel. In addition, due to the homogenization of the grinding wheel structure, the breakage and shedding of the cBN abrasive grains occurring on the working face of the grinding wheel are suppressed. Therefore, the radial wear of the cutting edge of each abrasive grain wheel when the uniform grinding wheel is grinded is smaller than that of the conventional grinding wheel.