基于磨削速度的K9光学玻璃平面磨削亚表面裂纹深度研究  

Research on sub-surface crack depth in surface grinding for optical glass K9 based on grinding speed

作　　者：陈江[1,2] 张飞虎[1] 

机构地区：[1]哈尔滨工业大学机电工程学院,哈尔滨150001 [2]哈尔滨商业大学轻工学院,哈尔滨150028

出　　处：《金刚石与磨料磨具工程》2016年第4期13-17,共5页Diamond & Abrasives Engineering

基　　金：国家自然科学基金项目(项目编号:51175126);国家重点基础研究发展计划(973计划)项目(项目编号:2011CB013202)

摘　　要：根据磨削参数协同分析的结果,在保证磨粒运动轨迹一致的情况下,进行基于磨削速度的单因素平面磨削实验。利用试件角度抛光、SEM检测亚表面裂纹层的深度。实验结果显示:随着砂轮转速的提高,亚表面裂纹层的深度呈下降趋势;当砂轮转速从500r/min逐渐提高到2500r/min时,亚表面裂纹层的最大深度的平均值下降达25μm左右;光学玻璃平面磨削实验结果表明,光学玻璃磨削磨削速度是影响磨削过程中光学玻璃材料亚表面裂纹层深度的重要因素,磨削速度对光学玻璃亚表面裂纹生成有重要影响。According to the collaborative analysis of grinding parameters, the surface grinding experiment for optical glass is carried out based on the single factor of grinding speed while the abrasive paths are kept consistent. The damage depth of sub-surface crack layer is detected by specimen angle polishing and SEM, which shows that damage depth of the sub-surface crack layer decreases with the increase of the grinding speed. When the grinding speed increases from 500 r/min to 2500 r/min, the average value of the maximum sub-surface crack layer depth drops to about 25 gin. The results of grinding experiment for optical glass show that grinding speed is an important factor to the damage depth of the sub-surface in grinding process, which has important influence on the formation of sub- surface crack.

关 键 词：磨削 光学玻璃 磨削速度 亚表面裂纹 

分 类 号：TG58[金属学及工艺—金属切削加工及机床]