基于田口法的AZ61A镁合金热挤压圆管成型工艺参数优化  

Process Parameters Optimization of AZ61A Magnesium Alloy Hot Extrusion Pipe based on Taguchi Method

作　　者：高正凯 李大为[2] GAO Zheng-kai;LI Da-wei(Jiamusi Special Device Inspection Research Institute,Jiamusi Heilongjiang 154002,China;College of Mechanical Engineering ,Jiamusi University ,Jiamusi Heilongjiang 154007,china)

机构地区：[1]佳木斯市特种设计检验研究所,黑龙江佳木斯154002 [2]佳木斯大学机械工程学院,黑龙江佳木斯154007

出　　处：《佳木斯大学学报（自然科学版）》2019年第3期435-436,477,共3页Journal of Jiamusi University：Natural Science Edition

基　　金：大学生创新训练项目(201710397044);福建省教育厅科技项目(JAT160513);福建省教育厅A类项目(JA15510)

摘　　要：减小AZ61A镁合金圆管成型的生产成本,采用田口法对AZ61A镁合金圆管成型热挤压实验进行了工艺参数优化。以挤压载荷最小为评价标准,分析了材料加热温度、主缸末速度、主缸初速度、润滑剂对挤压载荷的影响。基于工艺参数对挤压载荷的信噪比,获得了最优工艺参数组合。结果表明,材料加热温度对挤压载荷的影响最大,其次是主缸末速度。优化后的工艺参数组合为:材料加热温度400℃、主缸初速度为2mm/s、主缸末速度0.5mm/s、润滑剂为氮化硼。In order to reduce the production cost of AZ61A magnesium alloy tube forming, the hot extrusion process parameters of AZ61A magnesium alloy tube forming were optimized by Taguchi method. Taking the minimum extrusion load as the evaluation criterion, the effects of material heating temperature, main cylinder end speed, main cylinder initial speed and lubricant on extrusion load were analyzed. Based on the signal-to-noise ratio of process parameters to extrusion load, the optimal process parameters combination was obtained. The results show that the material heating temperature has the greatest influence on the extrusion load, followed by the main cylinder end speed. The optimized process parameters are as follows: material heating temperature 400 C, initial speed of main cylinder 2 mm/s, final speed of main cylinder 0.5 mm/s and lubricant boron nitride.

关 键 词：AZ61A镁合金 田口法 热挤压工艺参数 挤压载荷 

分 类 号：TG376.2[金属学及工艺—金属压力加工]