Abstract:
|
The metal fluid flow always changes with multi-orient force.The artificial forecast and some simple analysis law computations were unable accurately to predict the real flow mechanism.MSC/superform was used to simulate multidimensional extrusion deformation.The simulation shows that in the volume forming process,the metal flow mainly has very big relations with the mold shape as well as the filling factor.The suitable filling factor not only facilitates feeds,but also reduces the friction between metals and the wall of mould,and thus can reduce resistance to deformation and uneven deformation.The simulation analyzed the load——traveling curve and the equivalent strain distribution while the metal being extruded which provided the science reference for the mold design.
|
Funds:
|
国家自然科学基金资助项目(50575213);;
山西省研究生教育创新项目
|
AuthorIntro:
|
|
Reference:
|
[1]林俊峰,苑世剑,刘钢.球面挤压成形金属流动规律的数值模拟研究[J].材料科学与工艺,2005,13(6):606-608.
[2]张治民,杨宝付,刘奎立.ZTC4合金筒形件等温挤压成形数值模拟研究[J].塑性工程学报,2004,11(3):31-34.
[3]Hsu T C,Ing-Ren Shien.Finite element modeling of sheetmetal forming process with bending effects[J].Journal ofMaterials Processing Technology,1997,63:733-737,
[4]徐吉生.等径三通多向模锻金属流动研究[J].锻压技术,2002,27(4):11-14.
[5]王梦寒,陈锡侯,周杰.基于刚粘塑性有限元法的定子挤压工艺仿真[J].计算机仿真,2005,22(12):230-233.
[6]Alberto B Roggi,Alessandra Fascioli.Artificial vision in ex-treme environments for snowcat tracks etection[J].IEEETransactions on Intelligent Transportation System,2002,3(3):162-172.
|
Service:
|
【This site has not yet opened Download Service】【Add
Favorite】
|
|
|