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Abstract：
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The isotherm deformation physical modeling of unsymmetrical aerocraft frame part with Z, Ч,and H shape transverse section has been done with lead and LF21 aluminium alloy in this investigation. The results of modeling show the flow of metal toward add radius convex arc is faster than the flow of metal toward decrease radius concave arc. The deformation of nets is very big at narrow location due to less metal here when same width web was modeled with same thick billet. The full filling of frame part with greater rate of height and width is more a time to modify mean billet with LF21 aluminium alloy modeling.
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AuthorIntro：
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Reference：
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1 鹿守理相似理论在金属塑性加工中的应用北京:冶金出版社,1995
2 姚泽坤,兰芳,冯鹏发,等王字型变厚度筋钛合金结构件热模锻过程的物理模拟锻压技术,1999,(6):13～16
3 YaoZK ,GuoHZ et al,Physicalmodellingofisothermaldieforg ingprocessofTi alloystructuralair framepartwithEtypecross sec tionandvaryingthicknessribActaMetallurgicaSinica,2000,13(1):401～405
4 牛济泰材料和热加工领域的物理模拟技术北京:国防工业出版社,1999
5 ErmanE ,SemiatinSL PhysicalmodelingofMetalworkingprocessAIME ,1987
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