|
Abstract：
|
|
The blade of steam turbine is a key part to change steam energy into mechanical power.Precision forging of blade is the developing tendency of blade forging technology.By means of numerical simulation experiment,the flow and forming process of the blade metal in the cavity of forging die were analyzed.The influence of friction on the forming rules in the precision forging of bade was discussed.Three phases of billet deformation in the forging blade process were emulated and the influence of the different interface friction m on the blade forming rules and the die failure were analyzed and discussed.The experiment results indicate that with the increase of the friction factor m,the accessional die forging load used in overcoming the resistance of the billet-metal flowing on billet-die interface and the differences between the largest and the smallest temperature,equivalent strain and equivalent stress at different areas in the billet section will be increased.At the same time,the local maximum effective stress and temperature in the die cavity will also be increased.
|
|
Funds：
|
|
|
|
AuthorIntro：
|
|
|
|
Reference：
|
[1]杨合,詹梅,刘郁丽,等.面向叶片精密成形过程的三维有限元数值模拟技术[J].材料科学与工艺,1999,7(增刊):87-90.
[2]Kong C,Bang J.Structural investigation of composite windturbine blade considering various load cases and fatigue life[J].Energy,2005,30(11-12):2101-2114.
[3]Grass H,Krempaszky C,Werner E.3-D FEM-simulation ofhot forming processes for the production of a connecting rod[J].Computational Materials Science,2006,36(4):480-489.
[4]傅建,彭必友,李军.铝型材挤出速度对模具工作带的影响[J].塑性工程学报,2005,12(3):27-30.
[5]Snape Guy,Clift Sally,Bramley Alan.Parametric sensitivityanalyses for FEA of hot steel forging[J].Journal of Materi-als Processing Technology,2002,1(125-126):353-360.
[6]彭颖红.金属塑性成形仿真技术[M].上海:上海交通大学出版社,1999.
[7]彭建声,秦晓刚.模具技术问答[M].北京:机械工业出版社,2003.
|
|
Service：
|
|
【This site has not yet opened Download Service】【Add
Favorite】
|
|
|
|
Copyright Forging & Stamping Technology.All rights reserved