工艺参数对长悬臂结构空心截面型材挤压模强度的影响  

Influence of process parameters on the intensity of extrusion die for hollow profile with long cantilever

作　　者：曾文浩[1] 魏刚[1] 邓小亮[1] 陈功[1] 

机构地区：[1]西华大学材料科学与工程学院,四川成都610039

出　　处：《模具工业》2018年第1期1-7,共7页Die & Mould Industry

基　　金：四川省科技支撑计划项目(16201401)

摘　　要：针对具有长悬臂结构空心截面铝型材的结构特点,使用HyperXtrude13.0软件对其挤压过程进行数值模拟,采用正交试验分析了挤压速度、棒料预热温度、挤压筒预热温度、模具预热温度、棒料直径等工艺参数对模具应力和变形的影响规律,找到最优工艺参数组合。将最优工艺参数组合应用于实际挤压生产并获得尺寸合格的型材,验证了最优方案的可靠性和使用HyperXtrude13.0模拟仿真的可行性,该模拟结果可为改善同类空心截面铝型材挤压模零件的强度提供指导。Based on the characteristics of the hollow profile with long cantilever, the extru- sion process was simulated by using HyperXtrude13.0 software. The process parameters such as extrusion speed, pre-heating temperature of the billet, extrusion cylinder and die, billet diameter that affect the stress and deformation of extrusion die were investigated by adopting orthogonal experiment. And the optimal combination of the process parameters was found out. Finally the profile with qualified size was achieved in the actual extrusion production according to the optimal scheme, which verified the reliability of the optimal scheme and the feasibility of HyperXtrudel3.0 simulation, It could provide guidance for im- proving the strength of the extrusion die parts for aluminum profiles with the similar hol- low profile.

关 键 词：长悬臂结构 空心截面型材 挤压模 工艺参数 正交试验 

分 类 号：TG376[金属学及工艺—金属压力加工] O242.21[理学—计算数学]