摘要
A computer simulation procedure for metal powder die compaction was described. Friction behavior of metal powder during cold compaction was simulated by the finite element method. The movement of powder relative to the die wall was taken into consideration by utilizing the shear friction model. Friction between the powder and the rigid die wall leads to inhomogeneous density distribution during the compaction process. The floating die technique and double punch pressing can attain more homogenous compacts than the fixed die technique can do. The results obtained from numerical analysis agree well with the experimental results. Simulation model was built in MSC.Mentat, and MSC.Marc software was used to calculate the powder compaction process.
A computer simulation procedure for metal powder die compaction was described. Friction behavior of metal powder during cold compaction was simulated by the finite element method. The movement of powder relative to the die wall was taken into consideration by utilizing the shear friction model. Friction between the powder and the rigid die wall leads to inhomogeneous density distribution during the compaction process. The floating die technique and double punch pressing can attain more homogenous compacts than the fixed die technique can do. The results obtained from numerical analysis agree well with the experimental results. Simulation model was built in MSC.Mentat, and MSC.Marc software was used to calculate the powder compaction process.
出处
《中国有色金属学会会刊：英文版》
CSCD
2002年第5期890-893,共4页
Transactions of Nonferrous Metals Society of China
基金
Project( 5 9875 0 19)andkeyproject( 5 0 135 0 2 0 )supportedbytheNationalNaturalScienceFoundationofChina
Project( 2 0 0 1A3370 10 )supportedbytheNationalAdvancedTechnologyResearchandDevelopmentProgram
project( [2 0 0 0 ]No .1)supportedbytheMinistryo
