微磨具磨削钠钙玻璃的磨损机理实验研究
发布时间：2019-05-17 04:13
【摘要】：建立了微磨削过程中单颗磨粒的磨损数学模型,通过观测微磨具磨削前后直径变化、表面形貌变化及加工前后试件的表面质量,分析了微磨削过程中不同阶段磨粒的磨损情况.利用粒度500~#微磨具对钠钙玻璃进行单因素磨损实验,研究不同的磨削影响因素对微磨具磨损的影响规律.实验结果表明:随着磨削速度和进给速度增大,磨粒的磨损和破碎现象加剧;随着去除材料体积的增加,微磨具直径先是急剧减小,而后呈线性减小趋势;加工表面的粗糙度随着去除工件体积的增加总体呈下降趋势.研究结果为提高微磨具的使用寿命和加工性能提供了理论参考和实验依据.
[Abstract]:The wear mathematical model of a single abrasive particle in the process of micro-grinding is established. By observing the change of diameter before and after grinding, the change of surface morphology and the surface quality of the specimen before and after machining, the wear of abrasive particles in different stages of micro-grinding process is analyzed. The single factor wear experiment of sodium calcium glass was carried out by using 500 渭 # micro grinding tool, and the influence of different grinding factors on the wear of micro abrasive tool was studied. The experimental results show that the wear and breakage of abrasive particles increase with the increase of grinding speed and feed speed, and the diameter of micro-grinder decreases sharply at first and then decreases linearly with the increase of material volume. The roughness of machined surface decreases with the increase of workpiece volume. The research results provide theoretical reference and experimental basis for improving the service life and machining performance of micro-abrasive tools.
【作者单位】： 东北大学机械工程与自动化学院;
【基金】：国家自然科学基金资助项目(51375082);国家自然科学基金青年基金资助项目(51505073)
【分类号】：TQ171.684
[Abstract]:The wear mathematical model of a single abrasive particle in the process of micro-grinding is established. By observing the change of diameter before and after grinding, the change of surface morphology and the surface quality of the specimen before and after machining, the wear of abrasive particles in different stages of micro-grinding process is analyzed. The single factor wear experiment of sodium calcium glass was carried out by using 500 渭 # micro grinding tool, and the influence of different grinding factors on the wear of micro abrasive tool was studied. The experimental results show that the wear and breakage of abrasive particles increase with the increase of grinding speed and feed speed, and the diameter of micro-grinder decreases sharply at first and then decreases linearly with the increase of material volume. The roughness of machined surface decreases with the increase of workpiece volume. The research results provide theoretical reference and experimental basis for improving the service life and machining performance of micro-abrasive tools.
【作者单位】： 东北大学机械工程与自动化学院;
【基金】：国家自然科学基金资助项目(51375082);国家自然科学基金青年基金资助项目(51505073)
【分类号】：TQ171.684
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