东北大学学报:自然科学版 ›› 2020, Vol. 41 ›› Issue (4): 557-562.DOI: 10.12068/j.issn.1005-3026.2020.04.018

• 机械工程 • 上一篇    下一篇

牙科氧化锆陶瓷微尺度磨削力研究

周云光, 董彪, 岳新伟, 谭雁清   

  1. (东北大学秦皇岛分校 控制工程学院, 河北 秦皇岛066004)
  • 收稿日期:2019-07-30 修回日期:2019-07-30 出版日期:2020-04-15 发布日期:2020-04-17
  • 通讯作者: 周云光
  • 作者简介:周云光(1986-),男,河北秦皇岛人,东北大学秦皇岛分校讲师,博士.
  • 基金资助:
    国家自然科学基金资助项目(51905083); 河北省自然科学基金资助项目(E2019501094); 河北省高等学校科学技术研究项目(QN2019321); 中央高校基本科研业务费专项资金资助项目(N172303008,N162303011).

Micro-scale Grinding Force of Dental Zirconia Ceramics

ZHOU Yun-guang, DONG Biao, YUE Xin-wei, TAN Yan-qing   

  1. School of Control Engineering, Northeastern University at Qinhuangdao, Qinhuangdao 066004, China.
  • Received:2019-07-30 Revised:2019-07-30 Online:2020-04-15 Published:2020-04-17
  • Contact: ZHOU Yun-guang
  • About author:-
  • Supported by:
    -

摘要: 基于带有圆弧刃角的圆锥状磨粒形状和突出高度服从瑞利分布的假设,建立单颗磨粒未变形切削厚度数学模型.根据微磨削力的三种不同来源,以单颗磨粒为研究对象,建立磨削过程中单颗磨粒的切削变形力、耕犁力和摩擦力理论模型.结合单位面积内的磨粒数目,建立微磨削力的理论模型.切向磨削力和法向磨削力预测模型的验证结果表明:切向磨削力理论值与实验值平均误差为7.32%,最大误差小于10%;法向磨削力的平均误差为8.18%,最大误差小于20%.

关键词: 氧化锆陶瓷, 微尺度磨削, 磨削力, 磨削力预测, 磨削力理论模型

Abstract: Based on the assumption that the shape of conical abrasive with circular edge angles and the protrusion height follow Rayleigh distribution, a mathematical model of undeformed cutting thickness of a single abrasive was established. According to three different sources of the micro-grinding force, a single abrasive was taken as the research object, and a theoretical model of cutting deformation force, plough force and friction force of single abrasive during the grinding process was established. A theoretical model of micro-grinding force was established by combining the number of abrasive per unit area. The verification results of tangential grinding force and normal grinding force prediction models showed that the average error between theoretical and experimental values of tangential grinding force is 7.32%, and the maximum error is less than 10%. The average error of normal grinding force is 8.18%, and the maximum error is less than 20%.

Key words: zirconia ceramic, micro-scale grinding, grinding force, prediction of grinding force, theoretical model of grinding force

中图分类号: