Research on Grain impacting load in Abrasive Flow Machining
In order to grasp the microcosmic mechanism of abrasive flow machining (AFM),find out the real law of grain cutting workpiece surface,make out a reasonable process parameters and improve the abrasive flow processing efficiency.The process of grain (near to workpiece surface,called as active grains) cutting workpieces material has been analyzed and the cutting force model has been established in present work.Firstly,at the beginning of the present work,the general process of grain cutting,wearing or deburring workpiece surface has been researched.Theoretical analysis shows that the cutting force not only derives from static force,such as abrasive medium viscoelasticity and grain squeezing,but also dynamic force,such as grain impacting load on the workpiece surface.In ordering to prove the dynamic force exists,one or two main dynamic process parameters (such as abrasive viscosity,extrusion pressure,piston velocity) are chosen,dynamic force is most sensitive to the variation of which,meantime,static force is not,and then the effects of main dynamic process parameters on cutting force value have been compared with the effects of others process parameters by several experiments in the present work.The experimental results show that with the same proportion of variation of process parameters,the change in cutting force (mainly axial cutting force) consists with theoretical results very well in some degree.
Dynamic force cutting force AFM Impact load
Ding jinfu Zhang Kehua Xu yongchao
Precision Engineering Institute of Zhejiang Normal University,JinHua,321004,China
国际会议
杭州
英文
405-410
2013-09-23（万方平台首次上网日期，不代表论文的发表时间）