摘要
采用有限元模拟和实验研究相结合的方法,分析了模具结构对航空轮毂件模锻成形过程中金属变形流动行为的影响机理,揭示成形过程中金属变形及流动的规律。结果表明:利用锥角凹模更利于金属向模腔内充填成形;并从塑性加工力学角度,将其成形过程的不同阶段和区域抽象地分解为3个基本变形模式耦合而成的形式,使复杂模锻问题的分析模块化,进而为复杂盘类锻件精确塑性成形的变形流动控制提供理论依据。
The effects of the wheel hub part structure on the metallic deformation flow actions during die forging process were analyzed by using the methods of combining the finite element numerical simulation with the experimental study, and the metalic deformation flow rule during die forging process was revealed. The results show that the female die with the cone angel makes the metal flow into the die cavity more easily during forming. From the view of plastic processing mechanics, the different stages and regions of the deforming process are abstractly divided into three basic deformation modes coupled in a form, which makes the analysis of complicated forging modularization, and then supplies with theoretical references for the investigation on the deformation flow control of precise plastic forming of complicated disk components.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2009年第6期1012-1018,共7页
The Chinese Journal of Nonferrous Metals
基金
国家重点基础研究发展计划资助项目(5131903ZT2)
关键词
盘类锻件
变形耦合
金属流动
变形模式
模块化
disk components
coupling deformation
metal flow
deformation mode
modularization
