Three Dimensional Numerical Simulation of Cup-Shaped Thin-Walled Inner Gear Spin-Forming  

作　　者：SUN Ling-yan YE Bang-yan HAO Shao-hua XIA Qin-xiang 

机构地区：[1]School of Mechanical and Automobile Engineering, South China University of Technology, Guangzhou 510640, China

出　　处：《Computer Aided Drafting,Design and Manufacturing》2009年第2期21-26,共6页计算机辅助绘图设计与制造（英文版）

基　　金：Support by National Natural Science Foundation of China (50475097);Provincial Natural Science Foundation of Guangdong (04105943);Industrial Science and Technology Development Program Foundation of Guangdong (600611901001)

摘　　要：The cyclic symmetry and local fine-mesh technology were adopted in the establishment of numerical simulation model for inner gear spin-forming. And the processing experiment was proceeded to verify the reliability of the established model. The simulation result indicates that besides radial and axial flows, there also exists rather large tangential flow, which results in an increase of forming force in tangential direction. Furthermore, the un-uniform deformation of metal during spin-forming would cause forming defects, such as underfill in tooth fillet region and indentation on the outside spun part.

关 键 词：inner gear spin-forming numerical simulation forming defect spinning force 

分 类 号：TQ320.669[化学工程—合成树脂塑料工业] TU457[建筑科学—岩土工程]