氮化硅全陶瓷球轴承沟道超精加工仿真与试验研究
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摘要
为提高氮化硅全陶瓷球轴承加工精度,探究套圈沟道最优超精工艺,应用ABAQUS仿真软件,建立氮化硅全陶瓷球轴承套圈沟道超精加工的仿真模型,通过改变不同超精工艺参数,分析沟道表面应力分布图。采用正交试验,用金刚石油石对氮化硅全陶瓷球轴承沟道进行超精加工,得到沟道表面形貌及粗糙度值。研究各超精工艺参数对沟道表面粗糙度的影响。结果表明:在工件切线速度为10.4 m/s、油石压力为0.9 MPa、油石摆动速度为1 250次/min时,沟道表面应力分布均匀,表面质量最好;较低的油石压力,较高的油石摆动速度导致沟道沟形精度变差;沟道表面粗糙度随着油石压力、超精时间的增加而降低,适当提高超精时间、油石压力、短行程震荡速度并维持长行程摆荡速度约为700次/min,有利于降低氮化硅套圈沟道表面粗糙度。合理的超精工艺可极大改善氮化硅陶瓷套圈沟道精磨脆性去除后留下的表面缺陷。
In order to improve the processing precision of silicon nitride full-ceramic ball bearings and explore the optimal superfine process of the raceway,the simulation model of ultra-fine machining of silicon nitride full-ceramic ball bearing ring was established by using ABAQUS simulation software. The stress distribution of raceway surface was studied by changing different superfinishing parameters. The surface morphology and roughness of silicon nitride ceramic bearing raceway were obtained by superfinishing the raceway with diamond oilstone using orthogonal experiment. The effect of each superfinishing process parameter on the roughness of raceway surface was analyzed. The results show that when workpiece tangent speed 10.4 m/s,oilstone pressure 0.9 MPa,oil stone rotating velocity is 1 250 times/min,the stress situation of raceway surface is the best.The lower stick pressure and higher rotation velocity of the oilstone lead to the deterioration of the shape accuracy. The roughness of raceway surface decreases with the increase of oilstone pressure and superfinishing time. The surface roughness of the silicon nitride raceway can be reduced by appropriately increasing the superfinishing time,the oil stone pressure,the short stroke oscillation speed and maintaining the long stroke oscillation speed at about 700 times/min. The morphology of the raceway surface after superfinishing was observed under the reasonable combination of process parameters,which greatly improved the surface defects after the brittle removal of fine grinding and obtained good surface quality. The reasonable superfinishing process can greatly improve the surface defects left by the fine grinding of silicon nitride ceramic rings.
In order to improve the processing precision of silicon nitride full-ceramic ball bearings and explore the optimal superfine process of the raceway,the simulation model of ultra-fine machining of silicon nitride full-ceramic ball bearing ring was established by using ABAQUS simulation software. The stress distribution of raceway surface was studied by changing different superfinishing parameters. The surface morphology and roughness of silicon nitride ceramic bearing raceway were obtained by superfinishing the raceway with diamond oilstone using orthogonal experiment. The effect of each superfinishing process parameter on the roughness of raceway surface was analyzed. The results show that when workpiece tangent speed 10.4 m/s,oilstone pressure 0.9 MPa,oil stone rotating velocity is 1 250 times/min,the stress situation of raceway surface is the best.The lower stick pressure and higher rotation velocity of the oilstone lead to the deterioration of the shape accuracy. The roughness of raceway surface decreases with the increase of oilstone pressure and superfinishing time. The surface roughness of the silicon nitride raceway can be reduced by appropriately increasing the superfinishing time,the oil stone pressure,the short stroke oscillation speed and maintaining the long stroke oscillation speed at about 700 times/min. The morphology of the raceway surface after superfinishing was observed under the reasonable combination of process parameters,which greatly improved the surface defects after the brittle removal of fine grinding and obtained good surface quality. The reasonable superfinishing process can greatly improve the surface defects left by the fine grinding of silicon nitride ceramic rings.
引文
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[15]侯万果,段欣生.提高轴承滚道超精油抗乳化性能的措施[J].轴承,2015(4):39-41.
[16]李颂华,秘文博,吴玉厚,等.氮化硅轴承套圈沟道的超精研工艺实验研究[J].机械与电子,2017,35(2):32-35.
[17]高作斌,郭星成,杨晓波.球轴承沟道超精研运动干涉分析[J].轴承,2019(1):13-17.
[18]CHENG J,GONG Y D,WU Z Z. Experimental study on mech.anism of surface formation for microgrinding of hard brittle materia[l J]. Journal of Mechanical Engineering,2012,48(21):190-198.
[19]吴玉胜,李明春.功能陶瓷材料及制备工艺[M].北京:化学工业出版社,2013:20-45.
[20]MARINESCU I D. Handbook of ceramics grinding and polish.ing[M]. 2nd. New York:William and Rewpublishing,LLC,2015:235-269.
[2]文怀兴,孙建建,陈威.氮化硅陶瓷轴承润滑技术的研究现状与发展趋势[J].材料导报,2015,29(17):6-14.
[3]张宏友,吴鸣宇.滚动轴承套圈及滚子滚道超精研发展现状[J].机械工程与自动化,2015(6):220-221.
[4]吴玉厚,李颂华.数控机床高速主轴系统[M].北京:科学出版社,2011:5-25.
[5]田欣利,徐西鹏,袁巨龙.工程陶瓷先进加工与质量控制技术[M].北京:国防工业出版社,2014:1-6.
[6]任敬心,康仁科,王西彬.难加工材料磨削技术[M].北京:电子工业出版社,2011:279-281.
[7]高作斌,郭章计,马伟.轴承沟道超精研加工中的原理性沟形误差[J].轴承,2011(7):7-12.
[8]杨佐,陈春晓,姜忠伟.轴承套圈超精切屑瘤的形成机理[J].轴承,2000(10):28-29.
[9]李悦凤.用“正交试验法”优化精超滚锥轴承滚道的工艺参数[J].组合机床与自动化加工技术,2012(5):74-77.
[10]李颂华,王维东,吴玉厚,等.金刚石油石超精加工氧化锆陶瓷轴承沟道的仿真与实验研究[J].金刚石与磨料磨具工程,2018,38(4):64-71.
[11]NEAGU.VENTZEL S,CIOC S,MARINESCU I. A wear mod.el and simulation of superfinishing process:Analysis for the su.perfinishing of bearing rings[J]. Wear,2006,260(9/10):1061-1069.
[12]高作斌,李庆玲.滚动轴承超精研工艺的特殊性[J].轴承,2014(8):53-58.
[13]PUTHANANGADY T K,MALKIN S. Experimental investigation of the superfinishing process[J].Wear,1995,185:173-182.
[14]CHANG S H,FARRIS T N,CHANDRASEKAR S. Experimen.tal characterization of superfinishing[J]. Proceedings of the Institution of Mechanical Engineers,Part B:Journal of Engi.neering Manufacture,2003,217(7):941-951.
[15]侯万果,段欣生.提高轴承滚道超精油抗乳化性能的措施[J].轴承,2015(4):39-41.
[16]李颂华,秘文博,吴玉厚,等.氮化硅轴承套圈沟道的超精研工艺实验研究[J].机械与电子,2017,35(2):32-35.
[17]高作斌,郭星成,杨晓波.球轴承沟道超精研运动干涉分析[J].轴承,2019(1):13-17.
[18]CHENG J,GONG Y D,WU Z Z. Experimental study on mech.anism of surface formation for microgrinding of hard brittle materia[l J]. Journal of Mechanical Engineering,2012,48(21):190-198.
[19]吴玉胜,李明春.功能陶瓷材料及制备工艺[M].北京:化学工业出版社,2013:20-45.
[20]MARINESCU I D. Handbook of ceramics grinding and polish.ing[M]. 2nd. New York:William and Rewpublishing,LLC,2015:235-269.