TECHNOLOGIC RESEARCH AND NUMERICAL ANALYSIS OF SPINNING OF CYLINDERS WITH INNER RIBS

ZHANG Tao¹  LIU Zhichong¹  MA Shicheng²

(1.College of Mechanical Engineering, Yanshan University, Qinhuangdao 066004;

2.The 5th Graduate School, China Weapon Combine, Changchun 130012 )

Abstract: The technologic research and numerical simulation of spinning of cylinders with inner ribs are experimented. According to the dimensions and deformation information of the realistic work-piece, boundary, contact, friction, spatial trajectory information is taken into account. To analyze the forming principle of the inner ribs due to different stresses, strains, and spinning forces with different ratio of thinning and feeding, the 3D FEM mathematical model is established. The technology of estimating and preliminarily analyzing the possibility of crackle and surface-coming-off problems can improve the work efficiency; Meanwhile the developing cost can be reduced. This simulation method is established for further studying of mechanism and features of general spinning of cylinders with inner ribs, and it provides optimization of processing parameters with effective methods and reliable support.

Key words: Spinning Inner ribs Power spinning of cylinders Numerical simulation

CLC No: TG386

总装备部“十五”规划子项目资助. Received 20060201，received in revised form 20060918