工程设计学报2017，Vol.24Issue(2)：162-167,6.DOI:10.3785/j.issn.1006-754X.2017.02.006
旋转超声磨削钛合金有限元仿真与试验研究
Finite element simulation and experimental research on rotary ultrasonic grinding of titanium alloy
摘要
Abstract
In order to study the effects of the abrasive grain size of core tool on grinding force in rotary ultrasonic grinding titanium alloy, abrasive grain in the shape of irregular polyhedron was modeled by cutting regular hexahedron with random interception plane on a hexahedron.Based on virtual grid method, a simulation model of core drill with multi abrasive grains randomly distributing on the end face of tool was built.A 3D finite element model of rotary ultrasonic grinding of titanium alloy was developed by using Deform-3D.The simulation value of grinding force in rotary ultrasonic grinding of titanium alloy Ti6Al4V with multi abrasive grains was obtained by Lagrangian incremental algorithm, and the effects of the abrasive grain size on grinding force was investigated.A series of experiments were conducted to validate the grinding force in rotary ultrasonic grinding of titanium alloy.The result proved that rotary ultrasonic grinding force decreased as abrasive grain size increased and the experimental result agreed well with the simulation result.The result shows that the multi abrasive grain tool model and the finite element model of rotary ultrasonic grinding have certain accuracy.A new way for multi abrasive grain tool relational investigation in rotary ultrasonic grinding has been provided.关键词
多颗磨粒/虚拟格子法/旋转超声磨削/钛合金/有限元分析Key words
multi abrasive grain/virtual grid method/rotary ultrasonic grinding/titanium/finite element analysis分类
机械制造引用本文复制引用
刘凡,秦娜,牛健地,郑亮..旋转超声磨削钛合金有限元仿真与试验研究[J].工程设计学报,2017,24(2):162-167,6.基金项目
国家自然科学基金资助项目(51305369) （51305369）
中国博士后科学基金资助项目(2012M521708) （2012M521708）
高等学校博士学科点专项科研基金新教师类课题(20130184120007) （20130184120007）
中央高校基本科研业务费专项资金资助项目(SWJTU11CX023) （SWJTU11CX023）
教育部重点实验室开放式基金资助项目(JMTZ201605) （JMTZ201605）
