RESEARCH ON INFLUENCE OF TEMPERATURE ON A PRECISION FORGING PROCESS OF BLADE WITH A TENON  

作　　者：Y.L. Liu H. Yang T. Gao M. Zhan W. Cai 

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

出　　处：《Acta Metallurgica Sinica(English Letters)》2005年第6期749-755,共7页金属学报（英文版）

基　　金：supported by the Aeronautical Science Foundation of China(No.02H53061);the National Science Found of China for Distinguished Young Scholar(No.50225518);the Shaan'xi Provincial Natural Science Foundation of China(No.2001CS0401)

摘　　要：The blade precision forging process is a forming process with high temperature and large plastic deformation. Interaction of deformation and heat conduction leads to large uneven distribution of temperature. The unevenness of temperature distribution has a great effect on mechanical properties and the microstracture of materials. So it is necessary to consider the influence of temperature on the precision forging process of blades. Taking a blade with a tenon into consideration, a 3D mechanical model in precision forging is built up. The distribution laws of temperature field and the influence of the temperature on the equivalem stress in the process are obtained by using 3-D coupled thermo-mechanical FEM code developed by the authors Theresuits obtained illustrate that the influence of the temperature field on the blade forging process is considerable. The achievements of predicting microstructure and mechanical properties for forged blades is significant.The blade precision forging process is a forming process with high temperature and large plastic deformation. Interaction of deformation and heat conduction leads to large uneven distribution of temperature. The unevenness of temperature distribution has a great effect on mechanical properties and the microstracture of materials. So it is necessary to consider the influence of temperature on the precision forging process of blades. Taking a blade with a tenon into consideration, a 3D mechanical model in precision forging is built up. The distribution laws of temperature field and the influence of the temperature on the equivalem stress in the process are obtained by using 3-D coupled thermo-mechanical FEM code developed by the authors Theresuits obtained illustrate that the influence of the temperature field on the blade forging process is considerable. The achievements of predicting microstructure and mechanical properties for forged blades is significant.

关 键 词：blade with a tenon precision forging equivalent stress field temperature field thermo-mechanical coupled 3D FEM simulation 

分 类 号：TG316[金属学及工艺—金属压力加工] TB115[理学—数学]