深孔薄壁件正挤压凹模的有限元分析  

Finite Element Analysis of Forward Extrusion Cavity Die for Deep Hole and Thin Wall Shell

作　　者：赵健[1] 陈拂晓[2] 

机构地区：[1]郑州航空工业管理学院机电工程学院,河南郑州450015 [2]河南科技大学材料科学与工程学院,河南洛阳471039

出　　处：《热加工工艺》2009年第15期132-135,共4页Hot Working Technology

基　　金：河南省教育厅自然科学研究计划资助项目(2007460023)

摘　　要：针对用于深孔薄壁件挤压的典型正挤压凹模,在不作厚壁圆筒简化并施加非均布载荷的情况下,采用有限元法进行受力和变形情况的分析,计算结果更接近于实际,并进而得到组合凹模配合面过盈量、切向应力和预紧圈外径的关系图。利用此关系可以方便地选取外模圈尺寸和相应的内外模圈配合面的过盈量,为实现组合凹模的设计提供更加精确的设计依据,在实际生产中有较好的应用价值。Without the assumption of equally distributed load and thick-wall cylinder, the stress and deformation analysis were made on forward extrusion cavity.die for deep hole and thin wall shell by FEM. Based on the result of FEA, a relation curve chart of shrink-fitting range, shear stress and outside diameter-b of prestressed ring was found. By this chart, the useful data of optimizing design will be found easily, which can provide the more accurate reference for the design of combination cavity die.

关 键 词：深孔薄壁 挤压 组合凹模 有限元分析 

分 类 号：TG376.2[金属学及工艺—金属压力加工]