单颗立方氮化硼磨料磨损过程试验研究与分析Experimental research and analysis on CBN wear process based on single abrasive grinding
余剑武;肖清;罗红;刘智康;龙小兵;
摘要(Abstract):
设计单颗磨粒磨削装置,通过超景深显微镜观测单颗立方氮化硼(CBN)磨粒的磨损现象,分析CBN磨粒磨损状态的变化规律及原因。研究表明,钎焊CBN磨粒磨削合金渗碳钢20Cr Mo时,可将CBN磨粒磨损状态变化归纳为微观磨损、磨平、宏观破碎和失效4种形式。由于磨粒的磨损规律受磨粒表面形貌、磨粒的突出高度及磨削深度的影响,每个CBN磨粒的磨损形式不尽相同。在单颗粒磨削过程中,磨削深度对磨粒破碎形式有较大的影响,在磨削深度较小时,磨粒磨损以微观磨损和磨平为主;在磨削深度较大时,磨粒磨损以宏观破碎为主,并导致磨粒的失效。
关键词(KeyWords): 单颗粒磨削;CBN磨粒;微观磨损;宏观破碎;失效
基金项目(Foundation): 国家科技重大专项(2013ZX04012-051)
作者(Author): 余剑武;肖清;罗红;刘智康;龙小兵;
Email:
DOI: 10.14024/j.cnki.1004-244x.20170503.001
参考文献(References):
- [1]DENG Zhaohui,LIU Wei,WAN Linlin,et al.Experiment research progresses of single abrasive grain grinding[J].Key Engineering Materials,2013,589/590:470-474.
- [2]SHI Z,MALKIN S.An investigation of grinding with electroplated CBN wheels[J].CIRP Annals-Manufacturing Technology,2003,52(1):267-270.
- [3]MALKIN S,COOK N H.The wear of grinding wheels:part 2—fracture wear[J].Journal of Engineering for Industry,1971,93(4):1129-1133.
- [4]詹友基,黄辉,徐西鹏.钎焊金刚石磨削石材过程中磨粒磨损状态研究[J].金刚石与磨料磨具工程,2007(5):10-13.
- [5]ZHU Y J,DING W F,XU J H,et al.Surface fractal evolution of fracture behavior of polycrystalline CBN grains in highspeed grinding[J].International Journal of Advanced Manufacturing Technology,2014,76(9/10/11/12):1505-1513.
- [6]陈珍珍,徐九华,丁文锋,等.纳米Ti C粉末改性钎料钎焊CBN磨粒的结合界面和磨损特性(英文)[J].南京航空航天大学学报(英文版),2010,27(3):232-238.
- [7]马伯江,徐鸿钧,付玉灿,等.金刚石磨盘磨削的磨粒损伤特性研究[J].中国机械工程,2004,15(12):1085-1088.
- [8]田霖,傅玉灿,杨路,等.基于速度效应的高温合金高速超高速磨削成屑过程及磨削力研究[J].机械工程学报,2013,49(9):169-177.
- [9]TIAN L,FU Y,XU J,et al.The influence of speed on material removal mechanism in high speed grinding with single grit[J].International Journal of Machine Tools&Manufacture,2015,89:192-201.
- [10]程泽.单颗磨粒高速磨削镍基高温合金机理研究[D].南京:南京航空航天大学,2011.
- [11]DING W F,XU J H,CHEN Z Z,et al.Grain wear of brazed polycrystalline CBN abrasive tools during constant-force grinding Ti-6Al-4V alloy[J].International Journal of Advanced Manufacturing Technology,2011,52(9/10/11/12):969-976.
- [12]李晋年,付建军.CBN刀具磨损机理的研究[J].哈尔滨工业大学学报,1989(1):80-85.
- [13]曾志新.机械制造技术基础[M].武汉:武汉理工大学出版社,2001:38-40.
- [14]丁文锋,徐九华,周来水,等.立方氮化硼超硬磨料与45钢钎焊接头残余应力有限元分析[J].机械工程学报,2007,43(5):133-137.
- [15]羊松灿,李洪涛,译.单层钎焊CBN砂轮磨粒破损的研究[J].磨料磨具通讯,2007(5):13-17.