金刚石与磨料磨具工程2017，Vol.37Issue(3)：55-61,68,8.DOI:10.13394/j.cnki.jgszz.2017.3.0011
环形金刚石线锯切割YAG晶体的亚表面损伤预测
Prediction of subsurface damage of endless diamond wire sawing YAG crystal
摘要
Abstract
The material performance and the service life of YAG (Y3Al5O12) crystal are reduced due to subsurface damage.Based on the classical fracture mechanics model of brittle solids and the formula to calculate median crack depth, it is found out that the median crack is the main factor of subsurface damage (SSD) of brittle material.Through the statistics of the number of diamond grits and the summary of diamond wire cutting parameters, the cutting depth, the normal and tangential forces of single abrasive grain and the cutting projected area was calculated, it is predicted that SSD is closely related to the diamond wire speed vs, feed speed vw, cutting material properties, particle size distribution of diamond on electroplated saw wire, and so on.Finally, it is suggested that the model needs further revision through experiments.关键词
金刚石线锯/亚表面损伤/切削力模型/YAG晶体/脆性材料Key words
diamond wire saw/subsurface damage (SSD)/cutting force model/YAG crystal/brittle material分类
化学化工引用本文复制引用
刘文涛,赵惠英,李彬,赵凌宇,于贺春,房红军..环形金刚石线锯切割YAG晶体的亚表面损伤预测[J].金刚石与磨料磨具工程,2017,37(3):55-61,68,8.基金项目
河南省高等学校重点科研项目(硬脆材料元件低亚表面损伤的超精密磨削关键技术研究,项目号16A460030) （硬脆材料元件低亚表面损伤的超精密磨削关键技术研究,项目号16A460030）
