人工晶体学报2011，Vol.40Issue(2)：323-328,6.
大尺寸KDP晶体切削开裂效应数值模拟分析研究
Research on Cutting Effects of the Large-size KDP Crystal by Numerical Simulation Method
摘要
Abstract
Cracks may occur in the large-size KDP (KH2PO4 ) crystals during cutting process.To investigate the mechanical mechanism of cracking in the large-size KDP crystal and find a reasonable cutting method, this paper studies the cutting effects of large-size KDP crystals.The contact stresses and thermal stresses between the blade and crystal are the main factors to induce the cracks, thus the thermomechanical coupled numerical simulations were carried out by the finite element method.The simulation results demonstrate that the pressure between the KDP crystal and blade should limited in 4.1MPa and the range of temperature difference should be limited in 4.2 ℃.This paper also obtains the security range of the cutting parameters (the propulsion and linear velocity ).This study has very important significance to prevent cracks in large-size KDP crystals during cutting process.关键词
KDP晶体/切削效应/热力耦合/数值模拟/安全范围Key words
KDP crystal/ cutting effects/ thermal coupling/ numerical simulation/ security range分类
通用工业技术引用本文复制引用
张宁,张强勇,王圣来,孙云..大尺寸KDP晶体切削开裂效应数值模拟分析研究[J].人工晶体学报,2011,40(2):323-328,6.基金项目
国家重点基础研究发展计划(973)(2009CB724607)资助项目 （973）
国家自然科学基金(40772173)资助项目:山东省自然科学基金(Y2007F52)资助项目 （40772173）
山东大学晶体材料重点实验室开放基金(KF0705) （KF0705）
