中南大学学报（自然科学版）2011，Vol.42Issue(7)：1967-1972,6.
铝合金机轮轮毂锻造流线仿真与实验研究
Simulation and experiment research on forging flow lines for aluminum alloy wheel-hub
摘要
Abstract
The simulation of forging flow lines for aluminum alloy wheel-hub was carried out on the condition of different process parameters by using software platform Deform 2D. The experiment of forging process for reduced-scale wheel-hub was performed to verify the simulation results. The results show that a proper increase of friction between the mould and billet contributes to reduction of the angle between flow lines and workpiece surface, and prevention of flow lines outcrop. In comparison with the hot die forging, due to higher temperature and lower velocity in isothermal die forging with the temperature of the billet and models 450 ℃ and the velocity 0.1 mm/s, the metal strain resistance is reduced greatly, and the flowability of metal in the mould is improved. Therefore, the reasonable flow lines and uniform fine grain are obtained and the defects such as forging cracks and underfill occurring in hot die forging can be avoided.关键词
铝合金机轮轮毂/流线/摩擦/等温模锻Key words
aluminum alloy wheel-hub/flow lines/friction/isothermal die forging分类
矿业与冶金引用本文复制引用
张玉勋,易幼平,李云,黄始全..铝合金机轮轮毂锻造流线仿真与实验研究[J].中南大学学报（自然科学版）,2011,42(7):1967-1972,6.基金项目
国家重点基础研究计划(“973”计划)项目(2005CB724105) （“973”计划）
