不同体积分数SiC_p/Al复合材料精密磨削试验研究
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摘要
对体积分数为40%和60%的SiC_p/Al复合材料进行ELID精密磨削试验。分析了体积分数对加工材料物理化学性能的影响;运用正交试验和极差分析方法探究了磨削深度、砂轮线速度、电解电流及占空比对磨削加工表面质量和精度的影响规律,并得到优化工艺参数。采用相同优化工艺参数,对不同体积分数SiC_p/Al复合材料进行ELID精密平面磨削试验,对所得到的加工样件表面质量、形貌和机械加工性能进行分析研究。试验结果表明:SiC_p/Al复合材料ELID精密磨削加工表面质量和机械加工性能随着体积分数的增加而降低。采用ELID磨削技术可以实现对SiC_p/Al复合材料的精密加工,加工样件的表面粗糙度为95nm和106nm。
In this paper,ELID precision grinding experiments are carried out on SiC_p/Al composites with volume fractions of 40% and 60%.The effects of volume fraction on the physicochemical properties of the processed materials are analyzed.The orthogonal test and range analysis method are used to investigate the influence of grinding depth,grinding wheel linear velocity,electrolysis current and duty cycle on the surface quality and precision of grinding,and get optimized process parameters.ELID precision surface grinding experiments are carried out on different volume fractions of SiC_p/Al composites using the same optimized process parameters.The surface quality,morphology and mechanical processing properties of the obtained samples are analyzed.The experimental results show that the surface quality and machinability of SiC_p/Al composite ELID precision grinding process decreases with the increase of volume fraction.The precision machining of SiC_p/Al composites can be achieved by ELID grinding technology,and the surface roughness of the processed samples is 95 nm and 106 nm.
In this paper,ELID precision grinding experiments are carried out on SiC_p/Al composites with volume fractions of 40% and 60%.The effects of volume fraction on the physicochemical properties of the processed materials are analyzed.The orthogonal test and range analysis method are used to investigate the influence of grinding depth,grinding wheel linear velocity,electrolysis current and duty cycle on the surface quality and precision of grinding,and get optimized process parameters.ELID precision surface grinding experiments are carried out on different volume fractions of SiC_p/Al composites using the same optimized process parameters.The surface quality,morphology and mechanical processing properties of the obtained samples are analyzed.The experimental results show that the surface quality and machinability of SiC_p/Al composite ELID precision grinding process decreases with the increase of volume fraction.The precision machining of SiC_p/Al composites can be achieved by ELID grinding technology,and the surface roughness of the processed samples is 95 nm and 106 nm.
引文
[1]崔葵馨,常兴华,李希鹏,等.高体积分数铝碳化硅复合材料研究进展[J].材料导报,2012,26(S2):401-405.
[2]刘晓,袁峰,尹春晖,等.高体积分数SiCp/Al复合材料航天结构件的铣磨加工[J].航天制造技术,2015(2):5-8,22.
[3]于晓琳.高体积分数SiCp/Al复合材料精密磨削机理及表面评价研究[D].沈阳:沈阳工业大学,2012.
[4]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.
[5]关佳亮,郭东明,袁哲俊.ELID镜面磨削砂轮氧化膜生成机理[J].中国机械工程,1999,10(6):630-632.
[6]关佳亮,朱磊,陈玲,等.SiCp/Al复合材料的ELID精密加工工艺[J].北京工业大学学报,2015,41(6):823-829.
[7]方玲,张小联,王科军.高体积分数SiCp/Al复合材料的研究现状[J].江西有色金属,2007(4):34-37.
[8]叶邦彦,刘伟,徐进全,等.颗粒增强复合材料加工表面粗糙度及刀具设计[J].工具技术,2004(9):99-102.
[9]杨广宾.旋转超声辅助磨削高体分SiCp/Al复合材料试验研究[D].焦作:河南理工大学,2014.
[10]聂云峰.SiCp颗粒增强镁基复合材料弹塑性研究[D].兰州:兰州理工大学,2012.
[11]Mpolian J M.Pressgure infiltration of liquid aluminum into packed SiC particulate with a bimodal size distribution[J].Acta Materialia,2002,50(2):247-257.
[2]刘晓,袁峰,尹春晖,等.高体积分数SiCp/Al复合材料航天结构件的铣磨加工[J].航天制造技术,2015(2):5-8,22.
[3]于晓琳.高体积分数SiCp/Al复合材料精密磨削机理及表面评价研究[D].沈阳:沈阳工业大学,2012.
[4]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.
[5]关佳亮,郭东明,袁哲俊.ELID镜面磨削砂轮氧化膜生成机理[J].中国机械工程,1999,10(6):630-632.
[6]关佳亮,朱磊,陈玲,等.SiCp/Al复合材料的ELID精密加工工艺[J].北京工业大学学报,2015,41(6):823-829.
[7]方玲,张小联,王科军.高体积分数SiCp/Al复合材料的研究现状[J].江西有色金属,2007(4):34-37.
[8]叶邦彦,刘伟,徐进全,等.颗粒增强复合材料加工表面粗糙度及刀具设计[J].工具技术,2004(9):99-102.
[9]杨广宾.旋转超声辅助磨削高体分SiCp/Al复合材料试验研究[D].焦作:河南理工大学,2014.
[10]聂云峰.SiCp颗粒增强镁基复合材料弹塑性研究[D].兰州:兰州理工大学,2012.
[11]Mpolian J M.Pressgure infiltration of liquid aluminum into packed SiC particulate with a bimodal size distribution[J].Acta Materialia,2002,50(2):247-257.