ESTABLISHMENT OF 3D FEM MODEL OF MULTI-PASS SPINNING  

作　　者：ZHAN Mei ZHOU Qiang YANG He ZHANG Jinhui 

机构地区：[1]College of Materials Science and Engineering,Northwestern Polytechnical University, Xi＇ an 710072, China

出　　处：《Chinese Journal of Mechanical Engineering》2007年第4期19-23,共5页中国机械工程学报（英文版）

基　　金：Selected from Proceedings of the 7th International Conference on Frontiers of Design and Manufacturing(ICFDM' 2006);This project is supported by National Natural Science Foundation of China(No.50405039,No.50575186);National Natural Science Foundation of China for Distinguished Young Scholor(No.50225518).

摘　　要：In order to improve the computational accuracy and efficiency,it is necessary to establish a reasonable 3D FEM model for multi-pass spinning including not only spinning process but also springback and annealing processes.A numerical model for multi-pass spinning is established using the combination of explicit and implicit FEM,with the advantages of them in accuracy and efficiency. The procedures for model establishment are introduced in detail,and the model is validated.The application of the 3D FEM model to a two-pass spinning shows the following：The field variables such as the stress,strain and wall thickness during the whole spinning process can be obtained,not only during spinning process but also during springback and annealing processes,and the trends of their distributions and variations are in good agreement with a practical multi-spinning process.Thus the 3D FEM model for multi-pass spinning may be a helpful tool for determination and optimization of process parameters of multi-pass spinning process.In order to improve the computational accuracy and efficiency,it is necessary to establish a reasonable 3D FEM model for multi-pass spinning including not only spinning process but also springback and annealing processes.A numerical model for multi-pass spinning is established using the combination of explicit and implicit FEM,with the advantages of them in accuracy and efficiency. The procedures for model establishment are introduced in detail,and the model is validated.The application of the 3D FEM model to a two-pass spinning shows the following：The field variables such as the stress,strain and wall thickness during the whole spinning process can be obtained,not only during spinning process but also during springback and annealing processes,and the trends of their distributions and variations are in good agreement with a practical multi-spinning process.Thus the 3D FEM model for multi-pass spinning may be a helpful tool for determination and optimization of process parameters of multi-pass spinning process.

关 键 词：Multi-pass spinning 3DFEM SPRINGBACK Annealing Explicit Implicit 

分 类 号：TB30[一般工业技术—材料科学与工程]