材料性能对异形杯充液拉深成形的影响  

Influence of Material Properties on Hydromechanical Deep Drawing of Irregular Cup

作　　者：刘媛媛[1] 徐岩[1] 王辉[1] 李进[2] 

机构地区：[1]南京航空航天大学机电学院,南京210016 [2]中国直升机设计研究所,景德镇333001

出　　处：《南京航空航天大学学报》2012年第B04期101-104,共4页Journal of Nanjing University of Aeronautics & Astronautics

摘　　要：板料充液拉深是成形复杂零件的一种有效方法,在充液拉深中材料的性能参数对成形结果有着直接的影响。了解哪种性能参数对充液拉深成形影响最大,有利于恰当的选择板材,得到合格的成形件。本文以异形杯成形为例,采用Dyanform软件对异形杯的充液拉深成形进行数值模拟。以零件成形最终主应变、厚度分布等为评定标准,分析了材料性能参数中的应变硬化指数n和厚向异性指数r对异形杯充液拉深成形的影响。Sheet hydromeehanieal deep drawing is an effctive method for manufacturing complicated parts. During hydromeehanical deep drawing, the forming result is affected by the material properties. To find out which property has the greatest influence on the formability of hydromechanical deep draw- ing is conducive to select proper sheet and form qualified parts. The effects of material properties on the formability of the hydromechanical deep drawing of irregular cup are simulated by Dynaform. The major strain and the thickness distribution are used as evaluation criteria. The effects of the strain hardening exponent n and the anisotropy coefficient r on the hydromechanical deep drawing of the irregular cup are analysed.

关 键 词：充液拉深 数值模拟 应变硬化指数 厚向异性指数 

分 类 号：TG38[金属学及工艺—金属压力加工]