滚抛磨块参数对离心式滚磨光整加工过程中接触力的影响  

Effect of media parameters on contact forces in centrifugal barrel finishing

作　　者：郝志明[1,2] 李文辉 李秀红[1,2] 武锋锋 赵文渊[1,2] HAO Zhiming;LI Wenhui;LI Xiuhong;WU Fengfeng;ZHAO Wenyuan(College of Mechanical Engineering, Taiyuan University of Technology, Taiyuan 030024, China;Shanxi Key Laboratory of Precision Machining, Taiyuan 030024, China)

机构地区：[1]太原理工大学机械工程学院,太原030024 [2]精密加工山西省重点实验室,太原030024

出　　处：《中国科技论文》2017年第23期2756-2760,共5页China Sciencepaper

基　　金：国家自然科学基金资助项目(U1510118;51345010);山西省科技攻关项目(2015031011-3);山西省自然科学基金资助项目(201701D121073)

摘　　要：为了揭示滚抛磨块参数对离心式滚磨光整加工的影响,采用Plackett-Burman试验方法,以滚抛磨块在加工过程中的平均接触力作为评价指标,分析滚抛磨块9项参数对离心式滚磨光整加工的影响,筛选出对滚抛磨块在加工过程中平均接触力影响显著的参数,并初步判断显著性参数对评价指标的影响情况。然后使用Box-Behnken试验法进一步研究显著性参数与平均接触力的关系,推导出显著性参数与平均接触力的方程,使用该方程可通过滚抛磨块参数预测计算离心式滚磨光整加工过程中滚磨磨块的平均接触力,进而选择合适的滚抛磨块。从滚抛磨块参数角度,为优化与完善离心式滚磨光整加工技术提供理论支撑。To reveal the influences of media parameters on the centrifugal barrel finishing,nine media parameters were selected and analyzed by adopting the Plackett Burman test method with the mean contact force of the media in manufacturing as evaluation indexes.The most significant parameters which can influence the mean contact force during finishing process were filtered out,and their effects were roughly evaluated.Then,the Box Behnken test method was employed to further study the relationship between the significant parameters and the mean contact force of the media in the machining process,and corresponding equation was derived.Using this equation,the mean contact force of the media in the centrifugal barrel finishing process can be calculated through the prediction of media parameters,and then the right media can be chosen.It can provide theoretical support for further optimizing and promoting the centrifugal barrel finishing technology from the media parameters point of view.

关 键 词：机械制造及其自动化 滚磨光整加工 滚抛磨块 离散元法 参数 

分 类 号：TG580.6[金属学及工艺—金属切削加工及机床]