振动研磨材料去除机理研究  

Material Removal Mechanism in Vibration-assisted Finishing

作　　者：王宇[1] 尹韶辉[1] 进村武男 陈越[1] 

机构地区：[1]湖南大学国家高效磨削技术研究中心,长沙410082 [2]宇都宫大学,日本宇都宫市

出　　处：《中国机械工程》2009年第5期533-537,541,共6页China Mechanical Engineering

基　　金：国家863高技术研究发展计划资助项目(2006AA04Z335);湖南省科技厅资助重点项目(2006GK2011)

摘　　要：讨论振动研磨加工过程中通过辅助振动提高材料去除率的原因。在试验研究的基础上总结了振动研磨的加工特性,并建立了相关数学模型。通过分析和讨论,结果表明:受振动频率、振幅和磨粒运动规律的影响,辅助振动能够增大磨粒切削轨迹长度、切削速度和材料去除率;材料去除率的增大是材料去除量增大的主要因素,这主要是由于磨粒的交叉切削所致。This paper proposed a viewpoint to explain why vibration assistance may increase material removal rate （MRR） in vibration--assisted finishing process. On the basis of a series of experiments on vibration--assisted finishing process, the finishing characteristics were represented summarily and the relative mathematic models were built up. Through the analysis, it is shown that the vibration assistance method may increase cutting length and cutting speed of the abrasives, material removal in per unit finishing distance which is affected by vibration frequency and amplitude, in-process abrasives behavior. And the increase in material removal rate is mainly due to increase in material removal per unit finishing distance which is affected by the effect of abrasives cross--cutting.

关 键 词：振动研磨 砂纸 材料去除 加工长度 

分 类 号：TG580.616[金属学及工艺—金属切削加工及机床]