铝合金机轮轮毂锻件微观组织仿真及工艺优化  

Simulation on Microstructure of Aluminum Alloy Wheel-hub Forging and Its Optimal Design of Forging Technology

作　　者：张玉勋[1] 易幼平[1] 黄始全[1] 

机构地区：[1]中南大学机电工程学院,湖南长沙410083

出　　处：《热加工工艺》2010年第15期27-30,共4页Hot Working Technology

基　　金：国家973计划资助项目(2005CB724105)

摘　　要：利用Deform-2D仿真软件,研究了锻造工艺对机轮轮毂锻件微观组织的影响,并用实验进行了验证。研究结果表明,热模锻时,提高模具温度在细化锻件晶粒方面效果显著,特别是当温度高于420℃后;采用坯料、模具温度均为450℃,成形速度为0.1mm/s的等温模锻工艺成形机轮轮毂,锻件形变均匀,晶粒细小均匀,再结晶充分。仿真结果与实验结果基本符合。The effect of forging technology on microstructure of aluminum alloy wheel-hub was studied with Deform-2D simulation software,and the results were verified by experiment.The results show that,in hot die forging,increasing the die temperature obviously refines grain,especially when the temperature is higher than 420 ℃;in the isothermal forging process,when the die and the billet temperature is 450 ℃ and compaction velocity is 0.1 mm/s,the forgings with uniform fine grain and uniform deformation are obtained.The simulation results are generally consistent with the experimental results.

关 键 词：铝合金机轮轮毂 微观组织 等温模锻 

分 类 号：TG306[金属学及工艺—金属压力加工]