Experimental investigations into abrasive flow machining of helical gear
Abrasive flow machining (AFM) is an effective method that using the flow of a pressurized abrasive medium to remove workpiece material.It is used to deburfing,polishing or radiusing,etc.In this paper,the effect that AFM process on the surface of the helical gear is investigated.Then,the distribution of the velocities,shear rates and shear forces of the abrasive flow on the helical gear surface is obtained by CFD module of the COMSOL Muitiphysics software.The simulation results show that the abrasive grains near the addendum,tooth surface and tooth root can be subjected to corresponding shear stress.Experimental results indicated that the surface roughness Ra of the left tooth surface,right tooth surface and addendum before processing 1.429um,1.108um and 2.732um dropped after processing 0.228um,0.216um and 1.754um.All burrs at the intersection between tooth surface and end surface has been cleared,the surface quality of the helical gear has been improved.Therefore,AFM method can improve the surface quality of the helical gear effectively.
Abrasive flow machining helical gear burr surface quality
Yongchao Xu Kehua Zhang Shuang Lu Zhiqiang Liu
School of Mechatronic Engineering,Lanzhou Jiao Tong University,Lanzhou,730070,China Precision Engineering Institute of Zhejiang Normal University,JinHua,321004,China
国际会议
宁波
英文
65-69
2012-11-12（万方平台首次上网日期，不代表论文的发表时间）