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onclick="setCopy('http://forum.oecr.com/plugin.php?id=attachcenter:page&aid=88291', '链接已经复制到剪贴板');" type="submit"> <em>复制链接推荐给好友</em></button> <input type="text" class="px vm" onclick="this.select();setCopy(this.value, '链接已经复制到剪贴板');" value="http://forum.oecr.com/plugin.php?id=attachcenter:page&aid=88291" size="50" /></p> </div> <div class="bm"> <div class="bm_c xld"> <b>光学玻璃超精密切削加工裂纹的离散元仿真研究:</b><div class="postmsg">光学玻璃超精密切削加工裂纹的离散元仿真研究<br /> Discrete Element Simulation for Cracks in Optical Glass Ultra-precision Machining<br /> 下载全文<br /> <br /> 作 者：周里群[1,2] 肖威红[1] 李玉平[1]<br /> Zhou Liqun1, Xiao Weihong , Li Yuping1 （ 1School of Mechanical Engineering, Xiangtan University, Xiangtan 411105 ; 2Key Laboratory of Low Dimensional Materials Application Technology, Xiangtan University, Ministry of Education, Xiangtan 411105）<br /> 机构地区：[1]湘潭大学机械工程学院,湘潭411105 [2]湘潭大学低维材料及其应用技术教育部重点实验室,湘潭411105<br /> 出 处：《机械科学与技术》 CSCD 2014年第33卷第4期 527-530页,共4页<br /> Mechanical Science and Technology<br /> 基 金：智能制造湖南省重点实验室基金项目（2009IM05）和湖南省自然科学基金项目（09JJ6064）资助<br /> 摘 要：通过力学性能的数值模拟实验及校准，建立了光学玻璃的离散元模型和超精密切削加工的模型，并对其微切削过程进行了模拟；分析了在不同刀具前角、切削深度及切削速度加工条件下对加工后表面裂纹形成的影响。结果表明：加工表面的裂纹数目和裂纹最大深度随切削深度的增大而增大，而随刀具前角的增大而减小；加工表面的裂纹数目随切削速度的增大而减小，裂纹最大深度随切削速度的增大而增大。<br /> The discrete element model of optical glass and the model of ultra-precision machining process were con- structed by numerical simulation and calibration of mechanical properties. Based on these models, the mirco- machining process of optical glass was simulated, and the effects of different rake angles, cutting depths and cutting speeds on the formation of surface cracks were also analyzed. The result show that both of the surface crack number and maximum depth increase with the increasing of cutting depth, while decrease with the increasing of rake angle. The maximum depth increases with the increasing of cutting speed, and the surface cracks decrease with the in- crease of cutting speed.<br /> 关键词：光学玻璃 切削加工 离散元 裂纹<br /> calibration ; computer simulation ; crack ; crack initiation ; crack propagation ; cutting ; discrete element method ; finite difference method ; machining ; mathematical models ; mechanical properties ; optical glass ;</div> <div style="height200px;"></div> </div> </div> </div> </div></div> </div> <!--autocomment filter by maxnum--> <div class="ft_wp"> <div id="ft" class=" cl"> <div id="flk" > <p> <a href="http://wpa.qq.com/msgrd?V=3&Uin=20600600&Site=光电工程师社区&Menu=yes&from=discuz" target="_blank" title="QQ"><img src="static/image/common/site_qq.jpg" alt="QQ" /></a><span class="pipe">|</span><a href="http://m.oecr.com" >手机版</a><span class="pipe">|</span><a href="http://so.oecr.com" title="站内搜索" target="_blank" >搜索</a><span class="pipe">|</span><a href="http://www.focaloptics.com" title="主办单位：武汉焦点光学技术有限公司" target="_blank" >焦点光学</a><span class="pipe">|</span><a href="http://www.oecr.com" target="_blank">光电工程师社区</a> ( <a href="http://beian.miit.gov.cn/" target="_blank">鄂ICP备17021725号-1</a> <a href="http://www.beian.gov.cn/portal/registerSystemInfo?recordcode=42011102000821" target="_blank">鄂网安备42011102000821号</a> ) <span id="tcss"></span><script type="text/javascript" src="http://tcss.qq.com/ping.js?v=1eOg" charset="utf-8"></script><script type="text/javascript" reload="1">pgvMain({"discuzParams":{"r2":"1028778","ui":0,"rt":"plugin","pn":1,"qq":"000"},"extraParams":""});</script></p> <p class="xs0"> <span id="debuginfo"> Copyright 2015 光电工程师社区 版权所有 All Rights Reserved. </span> </p> </div> <div id="ftl" > <p>申明：本站为非盈利性公益个人网站，已关闭注册功能，本站所有内容均为网络收集整理，不代表本站立场。如您对某些内容有质疑或不快，请及时联系我们处理！ </p> </div> <div id="frt" > <div class="wp"> <p class="dd01"> © 2001-2022 <a href="http://www.oecr.com" target="_blank">光电工程师社区</a> 网站备案号：<a href="https://beian.miit.gov.cn/">鄂ICP备17021725号</a> 网站公安备案号：<a href="http://www.beian.gov.cn/portal/registerSystemInfo?recordcode=42011102000821">鄂42011102000821号</a> Powered by <a href="http://www.discuz.net" target="_blank">Discuz!</a> <em>X3.2</em> </p><p class="dd02">GMT+8, 2025-12-16 22:49 </p> </div> </div></div> </div> </div> <!--bottombg结束--> <!--<div id="scrolltop"> <span hidefocus="true"><a title="返回顶部" onclick="window.scrollTo('0','0')" class="scrolltopa" ><b>返回顶部</b></a></span> </div> --> <div id="scrolltop"> <span hidefocus="true"><a title="返回顶部" onclick="window.scrollTo('0','0')" class="scrolltopa" ><b>返回顶部</b></a></span> </div> <script type="text/javascript">_attachEvent(window, 'scroll', function () { showTopLink(); });checkBlind();</script> <div id="discuz_tips" style="display:none;"></div> <script type="text/javascript"> var tipsinfo = '1028778|X3.2|0.6||0||0|7|1765896578|f23a630dcac947cfc3049ae999607a4b|2'; </script> <script src="http://discuz.gtimg.cn/cloud/scripts/discuz_tips.js?v=1" type="text/javascript" charset="UTF-8"></script></body></html>