6061铝合金异形管材分流挤压模拟研究与优化  

Numerical Simulation and Optimum on Split-flow Extrusion Process of Al6061 Alloy Profile Pipe

作　　者：李春风[1] 赵严[2] 宁永权[2] 

机构地区：[1]西京学院机电工程系,陕西西安710123 [2]西北工业大学材料学院,陕西西安710072

出　　处：《热加工工艺》2013年第1期82-84,共3页Hot Working Technology

基　　金：中国博士后基金特别资助项目(2012T50818)

摘　　要：基于刚粘塑性有限元理论,采用DEFORM-3D有限元软件,对6061铝合金异形管材分流挤压工艺过程进行了数值模拟,揭示了挤压力的变化规律和坯料金属温度的分布规律。通过虚拟正交试验,获得了影响挤压力峰值的因素主次顺序为:工作带长度L>焊合角θ>焊合室深度h。以降低挤压力峰值为优化目标,获得了该规格6061铝合金异型管材分流挤压工艺最优水平组合为焊合室深度h=20mm,焊合角θ=35°,工作带长度L=5mm。Based on rigid viscoplastic finite element theory, the extrusion process of A16061 alloy split-flow die was numerically simulated with finite element analysis software DEFORM-3D. The extrusion load and temperature fields of billet metal were displayed. Through the virtual orthogonal experiment, it was gained that the sequence of influencing factors of maximum extrusion force are L （work zone length）〉θ（welding angle）〉 h （welding chamber depth）. Taking reducing the peak of extrusion load as optimized object, it was gained that the reasonable parameters are h=20 ram, θ-35° and L=5mm.

关 键 词：6061铝合金 异形管材 分流挤压工艺 数值模拟 虚拟正交优化 

分 类 号：TG376.2[金属学及工艺—金属压力加工]