孔光整加工表面粗糙度在线测量实验研究  

An Experimental Study of Online Measurement of Orifice Surface Roughness During Finishing Process

作　　者：王娟[1] 孙桓五[1] 谷丰收[1,2] 张云飞[1] 

机构地区：[1]太原理工大学机械工程学院,山西太原030024 [2]哈德斯菲尔德大学

出　　处：《机械设计与制造》2015年第2期108-110,114,共4页Machinery Design & Manufacture

基　　金：国家自然科学基金(51075294);山西省自然基金资助(2010011034-1);山西省研究生创新项目(20143052)

摘　　要：针对液体磁性磨具光整加工孔时,无法对孔内壁表面质量进行在线检测的现状,提出利用声发射技术检测加工过程中摩擦声发射信号并进而在线预测孔壁粗糙度的方法。通过实验和分析验证了声发射(Acoustic Emission,简称AE)信号与试件表面粗糙度值有良好的对应关系,获取了与孔壁粗糙度值相对应的AE信号特征值,研究了某零件光整加工时AE信号的均方根值与表面粗糙度值变化情况的对应规律,为利用声发射技术进行孔表面光整加工的在线检测和相关设备的自动化控制提供了有益的参考。For the current situation that there was no on-line method to detect the surface roughnesswhen fluid magnetic abrasives （FMA） finishing machining holes, an on-line prediction method of surface roughness was presented. It usedfriction-induced acoustic emission producing in the process of machining Through the experiments and analysis, itvalidated that there was a good corresponding relation between acoustic emission （AE） signals and the surface roughness value.lt also obtained the AE feature values which werecorresponding with the hole-wall surface roughness and the correspondence rule between root mean square of AE signal produced in machining and surface roughness value changes. Itprovided beneficial reference to on-line measurement of finishing machining surface roughness using AE technique, and relaed equipment automation control.

关 键 词：液体磁性磨具 智能加工 声发射检测 表面粗糙度 孔 光整加工 

分 类 号：TH16[机械工程—机械制造及自动化] TH161.5