现代制造工程Issue(1)：110-113,4.DOI:10.16731/j.cnki.1671-3133.2017.01.021
基于应变梯度塑性理论的AISI 4340微细铣槽研究
The research of AISI 4340 micro slotting based on strain gradient plasticity theory
摘要
Abstract
Considering the mechanics characteristics of AISI 4340 during micro scale machining,a constitutive model of AISI 4340 for micro milling is set up based on the Johnson-Cook constitutive model and strain gradient plasticity theory.And the simulation model of micro milling tool which made by cemented carbide is also built.The Arbitrary Lagrangian-Eulerian (ALE) adaptive grid technique is used to simulate micro slotting.The forces during micro slotting are obtained under different spindle speed and feed rate.The correctness of AISI 4340's constitutive model is validated by comparing the predicted micro milling force with the corresponding experimental data.It provides the foundation for the further research of micro milling.关键词
AISI 4340/微细铣槽/Johnson-Cook材料模型/应变梯度塑性理论/微铣削力Key words
AISI 4340/micro slotting/Johnson-Cook material model/strain gradient plasticity theory/micro milling force分类
矿业与冶金引用本文复制引用
孟杰,雷贞贞,刘敏..基于应变梯度塑性理论的AISI 4340微细铣槽研究[J].现代制造工程,2017,(1):110-113,4.基金项目
国家自然科学基金项目(51505049) （51505049）
重庆市基础与前沿研究计划项目(cstc2013jcyjA70004) （cstc2013jcyjA70004）
重庆市教委科学技术研究项目(KJ1501314) （KJ1501314）
