(1. 哈爾濱理工大學(xué) 材料科學(xué)與工程學(xué)院，哈爾濱 150040；
2. 哈爾濱工業(yè)大學(xué) 材料科學(xué)與工程學(xué)院，哈爾濱 150001)
摘 要: 采用有限元模擬和實驗研究相結(jié)合的方法，分析了模具結(jié)構(gòu)對航空輪轂件模鍛成形過程中金屬變形流動行為的影響機理，揭示成形過程中金屬變形及流動的規(guī)律。結(jié)果表明：利用錐角凹模更利于金屬向模腔內(nèi)充填成形；并從塑性加工力學(xué)角度，將其成形過程的不同階段和區(qū)域抽象地分解為3個基本變形模式耦合而成的形式，使復(fù)雜模鍛問題的分析模塊化，進(jìn)而為復(fù)雜盤類鍛件精確塑性成形的變形流動控制提供理論依據(jù)。
關(guān)鍵字: 盤類鍛件；變形耦合；金屬流動；變形模式；模塊化
（1. College of Materials Science and Engineering, Harbin University of Science and Technology,
Harbin 150040, China;
2. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China）
Abstract: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.
Key words: disk components; coupling deformation; metal flow; deformation mode; modularization
