机械科学与技术2017，Vol.36Issue(1)：89-94,6.DOI:10.13433/j.cnki.1003-8728.2017.0113
单晶锗各向异性对加工表面粗糙度的影响
Effect of Germanium Single-crystal Anisotropy on Roughness of Cutting Surface
摘要
Abstract
In order to reduce the fracture damage and the not uniform quality of the machined surface in cutting of germanium element,according to the anisotropic characteristics of germanium single crystal structure,stress the change of the cleavage plane and slip surface of single crystal germanium were studied.The criterion of the degree of the crystal orientation influencing the brittle-ductile removal mode of chip was given.A stress calculation model for the cleavage plane and slip plane of single-crystal germanium arbitrary crystal plane was established,and anisotropy distribution law of machined surface roughness of single-crystal germanium was analyzed.The relationship between the brittle-ductile removal mode of chip and the crystal orientation of the arbitrary crystal plane and typical crystal plane was calculated.The correctness and effectiveness of the criterion and model were verified via ultra precision cutting experiment.关键词
单晶锗/表面粗糙度/各向异性/应力变化Key words
single crystal germanium/surface roughness/anisotropy/stress change分类
矿业与冶金引用本文复制引用
苗实,史国权,石广丰,蔡洪彬..单晶锗各向异性对加工表面粗糙度的影响[J].机械科学与技术,2017,36(1):89-94,6.基金项目
国家自然科学基金面上项目(51075042)资助 （51075042）
