ELID沟道成形磨削氧化膜特性及影响作用实验
|
摘要
针对ELID沟道成形磨削特点,研究了磨削过程中氧化膜的特性及其影响作用。探讨分析了氧化膜的电流表征、氧化膜在沟道成形磨削中的状态变化以及氧化膜状态对磨削力和表面粗糙度的影响。实验过程中,电解电流从1 A增长到4 A,氧化膜厚度从35.33!m减小到11.07!m,法向磨削力从7.06 N增长到36.12 N,切向磨削力从1.62 N增长到4.47 N;垂直于磨削方向的表面粗糙度由0.256!m增长到0.355!m,平行于磨削方向的表面粗糙度由8 nm增长到13 nm。结果表明,氧化膜越厚,磨削力和表面粗糙度越小;氧化膜越薄,磨削力和表面粗糙度越大。
The characteristics and mechanism of the oxide layer in ELID groove profile grinding process were investigated. The non-uniform contact during ELID groove grinding and the effect of oxide layer on the grinding force and the surface roughness were studied. As the current increases from 1 A to 4 A,the thickness of oxide layer decreases from 35.33 !m to 11. 07 !m. Meanwhile,the normal grinding force increases from 7. 06 N to 36. 12 N,and the tangential grinding force increases from 1. 62 N to 4. 47 N. Ravincreases from 0. 256 !m to 0. 355 !m,and Rapincreases from 8nm to 13 nm. The result indicates that as the thickness of oxide layer decreases,the grinding force and surface roughness increase,while as the thickness of oxide layer increases,the grinding force and surface roughness decrease.
The characteristics and mechanism of the oxide layer in ELID groove profile grinding process were investigated. The non-uniform contact during ELID groove grinding and the effect of oxide layer on the grinding force and the surface roughness were studied. As the current increases from 1 A to 4 A,the thickness of oxide layer decreases from 35.33 !m to 11. 07 !m. Meanwhile,the normal grinding force increases from 7. 06 N to 36. 12 N,and the tangential grinding force increases from 1. 62 N to 4. 47 N. Ravincreases from 0. 256 !m to 0. 355 !m,and Rapincreases from 8nm to 13 nm. The result indicates that as the thickness of oxide layer decreases,the grinding force and surface roughness increase,while as the thickness of oxide layer increases,the grinding force and surface roughness decrease.
引文
[1]张飞虎,朱波,栾殿荣,等.ELID磨削-硬脆材料精密和超精密加工的新技术[J].宇航材料工艺,1999,29(1):51-55.
[2]关佳亮,范晋伟,马春敏.ELID磨削技术在硬脆材料精密超精密加工中的应用[J].北京工业大学学报,2001,27(4):486-488.
[3]张开飞.球轴承套圈沟道ELID成形磨削试验研究[D].天津:天津大学,2013.
[4]关佳亮,郭东明,袁哲俊.ELID镜面磨削中砂轮生成氧化膜特性及其作用的研究[J].机械工程学报,2000,36(5):89-92.
[5]DAI Y,OHMORI H,LIN W,et al.A Fundamental Study on Optimal Oxide Layer of Fine Diamond wheels during ELID grinding process[J].Key Engineering Materials,2006,304-305:176-180.10.4028/www.scientific.net/KEM.304-305.176.
[6]朱育权,马保吉,D.J.Stephenson.ELID超精密磨削砂轮表面氧化膜形成过程的建模和仿真[J].工具技术,2008,42(5):11-14.
[7]KUAI J C,ZHANG H L,ZHANG F H,et al.Research on Oxide Film Mechanical Properties of ELID Grinding Wheel Surface by Nanoindentation[C].2010 International Conference on E-Product E-Service and E-Entertainment,Henan,IEEE,2010:1-5.10.1109/ICEEE.2010.5660294.
[8]YANG L J,REN C Z,JIN X M.Experimental study of ELID grinding based on the active control of oxide layer[J].Journal of materials processing technology,2010,210(13):1748-1753.http://dx.doi.org/10.1016/j.jmatprotec.2010.06.005.
[9]赵波,刘折,郑友益,等.超声ELID复合磨削磨削力模型研究[J].宇航材料工艺,2014,44(4):31-35.
[10]WU M L,ZHANG K F,REN C Z.Study on the non-uniform contact during ELID groove grinding[J].Precision Engineering,2015,39:116–124.http://dx.doi.org/10.1016/j.precisioneng.2014.07.011.
[2]关佳亮,范晋伟,马春敏.ELID磨削技术在硬脆材料精密超精密加工中的应用[J].北京工业大学学报,2001,27(4):486-488.
[3]张开飞.球轴承套圈沟道ELID成形磨削试验研究[D].天津:天津大学,2013.
[4]关佳亮,郭东明,袁哲俊.ELID镜面磨削中砂轮生成氧化膜特性及其作用的研究[J].机械工程学报,2000,36(5):89-92.
[5]DAI Y,OHMORI H,LIN W,et al.A Fundamental Study on Optimal Oxide Layer of Fine Diamond wheels during ELID grinding process[J].Key Engineering Materials,2006,304-305:176-180.10.4028/www.scientific.net/KEM.304-305.176.
[6]朱育权,马保吉,D.J.Stephenson.ELID超精密磨削砂轮表面氧化膜形成过程的建模和仿真[J].工具技术,2008,42(5):11-14.
[7]KUAI J C,ZHANG H L,ZHANG F H,et al.Research on Oxide Film Mechanical Properties of ELID Grinding Wheel Surface by Nanoindentation[C].2010 International Conference on E-Product E-Service and E-Entertainment,Henan,IEEE,2010:1-5.10.1109/ICEEE.2010.5660294.
[8]YANG L J,REN C Z,JIN X M.Experimental study of ELID grinding based on the active control of oxide layer[J].Journal of materials processing technology,2010,210(13):1748-1753.http://dx.doi.org/10.1016/j.jmatprotec.2010.06.005.
[9]赵波,刘折,郑友益,等.超声ELID复合磨削磨削力模型研究[J].宇航材料工艺,2014,44(4):31-35.
[10]WU M L,ZHANG K F,REN C Z.Study on the non-uniform contact during ELID groove grinding[J].Precision Engineering,2015,39:116–124.http://dx.doi.org/10.1016/j.precisioneng.2014.07.011.