首页期刊信息编委及顾问期刊发行联系方式使用帮助常见问题ENGLISH
位置:首页 >> 正文
光滑粒子流体动力学方法模拟石英玻璃超精密切削过程
作者:郭晓光 郑桂林 康仁科 金洙吉 郭东明 
单位:大连理工大学 精密与特种加工教育部重点实验室 辽宁大连116024 
关键词:石英玻璃 光滑粒子流体动力学 切削 仿真 超精密加工 
分类号:TQ171.73
出版年,卷(期):页码:2016,44(1):0-0
DOI:
摘要:

 应用无网格光滑粒子流体动力学(SPH)方法,建立了石英玻璃SPH模型,模拟了石英玻璃超精密切削过程,分析了 0.1~1.0 pm多组切削深度下材料去除模式和应变分布情况,以及不同刀具前角时切削过程中裂纹形成机理及其对超精密加工 过程的影响。仿真结果表明:石英玻璃能在微纳尺度上实现塑性域去除。通过研宄微裂纹与塑性应变的关系发现:在前角为 0°、切削速度10m/s、刀具钝圆半径0.1pm的仿真条件下,石英玻璃塑脆转变临界切削深度是0.18 pm;刀具负前角切削可 以得到更好的表面加工质量,说明负前角切削更适合石英玻璃超精密加工。金刚石飞切实验数据验证了 SPH仿真结果的合理性。

doxycycline doxycycline doxycycline
bystolic copay card click bystolic coupon voucher

 A smoothing particle hydrodynamics (SPH) model of quartz glass was established to simulate the ultra-precision cutting process of quartz glass by a mesh-free method for SPH. The material removal mode and strain distribution for the cutting depth of 0.1-1.0 pm were analyzed. The mechanism of crack formation and its influence on the ultra-precision machining process were discussed when the tools of different rake angles were used. The simulated results indicate that quartz glass can be machined in a ductile mode on the micro- and nanoscale. Based on the relation between micro-cracks and plastic strain, the critical cutting depth of brittle-ductile transition is confirmed, and the value is 0.18 pm under given simulated conditions (i.e., rake angle of 0°, cutting speed of 10 m/s and rounded cutting edge radius of 0.1 pm. The negative rake angle cutting tool can obtain a better surface quality, showing that the negative rake angle is more suitable for ultra-precision machining of quartz glass. Furthermore, the experimental results of diamond fly cutting is similar to the simulated results by SPH

基金项目:
作者简介:
printable coupons for cialis drug discount coupons coupon for free cialis
参考文献:

 修树东,周明,李敏.光学玻璃微切削时材料去除机理和表面质量 的研宄[J].工具技术,2008, 42: 15-17.XIU S D,ZHOU M,LI M. Tool Eng (in Chinese),2008, 42: 15-17. 苏英,周永恒,黄武,等.石英玻璃与HF酸反应动力学的研宄J]. 硅酸盐学报,2004, 32(3): 287-293.SU Ying,ZHOU Yongheng,HUANG Wu,et al. J Chin Ceram Soc,2004, 32(3): 0454-5648.陈明君,张飞虎,董申.光学非球曲面器件的超精密磨削加工技术 研宄[J].光学技术,2001,27(6): 512-513 CHEN Mingjun, ZHANG Feihu, DONG Shen. Opti Tech (in Chinese), 2001,27(6): 512-513.周明,李敏,杨志勇.光学玻璃塑性域切削试验研究[J].制造技术 与机床,2008, 8: 9-12.ZHOU M, LI M,YANG ZY. Manuf Technol Mach Tool (in Chinese), 2008, 8: 9-12.YAO Peng,WEI Wang,HUANG Chuanzhen,et al. Indentation crack initiation and ductile to brittle transition behavior of fused silica [J].Adv Mater Res,2013, 797: 667-672.TAMAKI J,KUBO A,YAN J. Experimental analysis of elastic and plastic behavior in ductile-regime machining of glass quartz utilizing a diamond tool [C] //11th International Symposium on Advances in Abrasive Technology,Awaji,Japan,2009: 235-240.YAO Peng, YOSHIHARA N, HITOMI N, et al. Ductile and brittle mode grinding of fused silica [C] //13th ICPE International Conference on Advanced Precision Engineering, Singapore, Singapore, 2010: 21-25.RAVINDRA D,PATTEN J. Ductile regime single point diamond turning of quartz [C] //AIP conference proceedings, Paris, France, 2011: 1029-1029.GUOX G, WEI Y J, JIN Z J, et al. A numerical model for optical glass cutting based on SPH method [J]. Int J Adv Manuf Technol,2013, 68(5-8): 1277-1283.LUCY L B. A numerical approach to the testing of fusion process [J]. Astron J,1977, 88: 1013-1014.SU C, ZHANG Y, HOU J M. Numerical simulation and analysis for metal cutting processes based on FEM and SPH [C] //2008 Asia Simulation Conference,Beijing,China,2008: 1325-1328.BENZ W,ASPHAUG E. Simulation of brittle solids using smooth particle hydrodynamics [J]. Comput Phys Comm,1995,87(1-2): 253-265.JOHNSON G R,HOLMQUIST T J. An improved computational constitutive model for brittle materials [C] //High-Pressure Science and Technology,Colorado Springs,USA,1994: 981-984. 王承遇.玻璃材料手册[M].北京:化学工业出版社,2007: 535-555. WANG Chengyu. Handbook of glass materials (in Chinese). Beijing: Chemical Industrial Press,2007: 535-555.DAVISON D,COUR-PALAIS B,QUAN X Y,et al. Computer models of micrometeoroid impact on fused silica glass mirrors [C] //Hypervelocity Impact Symposium,Noordwijk,Netherlands,2003: 203-214.TAKECHI T,TAMAKI J,KUBO A,et al. Elastic and Plastic Behaviors in Ductile-Regime Machining Process of Quartz Glass [C] //13th International Symposium on Advances in Abrasive Technology, Taipei,China,2010: 235-240.LIU Y,GUAN C L,YIN Z Q,et al. Ultra-precision flycutting microstructures on brittle materials [J]. Appl Mech Mater,2013,310:63-66.ZHAO Q L,STEPHENSON D,CORBETT J,et al. Single grit diamond grinding of Spectrosil 2000 glass on Tetraform 'C' [J]. Key Eng Mater,2004, 257-258: 107-112.

cialis coupon cialis coupon cialis coupon
服务与反馈:
文章下载】【加入收藏
中国硅酸盐学会《硅酸盐学报》编辑室
京ICP备10016537号-2
京公网安备 11010802024188号
地址:北京市海淀区三里河路11号    邮政编码:100831
电话:010-57811253  57811254    
E-mail:jccs@ceramsoc.com