基于修整力的树脂结合剂金刚石砂轮机械修整

发布时间：2018-10-17 11:05

【摘要】：研究了树脂结合剂金刚石砂轮修整过程中修整力与修整效果的关系,基于修整力的变化表征了砂轮的表面形貌及磨削性能。首先,对碳化硼、碳化硅、白刚玉3种砂轮修整工具进行实验,并采集了修整过程中修整力的变化;然后,利用白光干涉仪观测修整后砂轮的表面形貌;最后,对修整后砂轮进行磨削验证实验,得到不同修整工具修整后砂轮的磨削性能。基于上述实验,分析并验证了修整力的变化与砂轮表面形貌和砂轮磨削性能的关系。结果表明,法向力Fn能够表征砂轮的磨粒切削刃密度以及磨粒突出高度;修整比率β反映了砂轮的锋锐程度,当β稳定时,砂轮达到充分修整。因此修整力反映了砂轮表面形貌和磨削性能,根据修整力的变化可以把握砂轮的修整进程。
[Abstract]:The relationship between dressing force and dressing effect in the dressing process of resin bonded diamond grinding wheel was studied. The surface morphology and grinding performance of grinding wheel were characterized based on the change of dressing force. First, three grinding wheel dressing tools, boron carbide, silicon carbide and white corundum, were tested, and the change of dressing force was collected. Then, the surface morphology of the dressing wheel was observed by white light interferometer. The grinding performance of different dressing tools is obtained by grinding verification experiment. Based on the above experiments, the relationship between the change of dressing force and the surface morphology of grinding wheel and grinding performance of grinding wheel is analyzed and verified. The results show that the normal force Fn can characterize the cutting edge density of grinding wheel and the height of grain protruding, and the dressing ratio 尾 reflects the sharpness of grinding wheel, and when 尾 is stable, the grinding wheel achieves full dressing. Therefore, the dressing force reflects the surface morphology and grinding performance of the grinding wheel. According to the change of dressing force, the dressing process of the grinding wheel can be grasped.
【作者单位】：天津大学精密测试技术及仪器国家重点实验室;
【基金】：国家自然科学基金资助项目(No.51375336) 天津市自然科学基金资助项目(No.12JCZDJC27900)
【分类号】：TG580.6;TG743

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