超高速点磨削几何模型参数的研究  

Research on the Geometrical Parameter In Super-high Speed Point Grinding

作　　者：刘玉娇[1] 刘月明[1] 巩亚东[1] 

机构地区：[1]东北大学机械工程与自动化学院,辽宁沈阳110004

出　　处：《制造技术与机床》2009年第5期98-100,共3页Manufacturing Technology & Machine Tool

基　　金：国家自然科学基金项目(50775032)

摘　　要：介绍了超高速点磨削砂轮的结构并根据砂轮在外圆纵向磨削过程中与工件的干涉情况,建立了超高速点磨削几何模型。研究了砂轮磨削工件时的粗磨区和精磨区的材料去除过程及其几何接触弧长,并在对点磨削中单颗磨粒轨迹进行研究的基础上求得动态接触弧长。得出砂轮粗磨区倾角θ和偏转角α的变化对接触弧长的影响,为今后进一步研究超高速点磨削加工的机理提供了理论基础。It introduced the neoteric wheel which is used in super high speed point grinding. According to the position between the wheel and workpiece in cylindrical grinding process, the geometrical parameter in super high speed point grinding had been built completely. It educed the mechanism of material removal in coarse grinding and finished grinding area and the length of geometric contact arc. It also acquired the dynamic arc length of contact based on the research of single abrasive particle track in point grinding. The connection between the contact arc and α and θ could be described in plot, which could provide the theoretical element of mechanism research in super high speed point grinding.

关 键 词：点磨削 几何模型 去除机制 

分 类 号：TG580.6[金属学及工艺—金属切削加工及机床] TP391.41[自动化与计算机技术—计算机应用技术]