伞形筒热挤压工艺及模具设计  

Hot Extrusion Process and Die Design on Umbrella-type Cylinder

作　　者：张丽霞[1] 李达 张超彦[1] 

机构地区：[1]徐州工业职业技术学院,江苏徐州221140 [2]河南北方星光机电有限公司,河南邓州474150

出　　处：《铸造技术》2017年第11期2730-2733,共4页Foundry Technology

基　　金：徐州工业职业技术学院教科研基金项目(XGY201624)

摘　　要：利用数值模拟技术对伞形筒挤压工艺参数和挤压模具进行设计。建立有限元模型,采用DEFORM软件对其成形过程进行数值模拟,分析了挤压温度和挤压速度对挤压力的影响,并从模具寿命方面考虑设计了模具预热温度等成形工艺参数。结果表明,采用热挤压模具在300 T液压机上能够生产出合格的伞形筒工件;毛坯加热温度为930±10℃,模具预热温度为250±10℃,挤压速度为30 mm/s,挤压性能较好,挤压件符合设计要求。The extrusion parameters and extrusion die of the umbrella-type cylinder were designed by the numerical simulation. The finite element model was established, and the effects of heating temperature and extrusion speed on the extrusion force were analyzed by the DEFORM software. The molding process parameters such as mold preheating temperature were considered from the aspects of die life. The results show that the qualified workpiece can be produced by using the hot extrusion mold on the 300 T hydraulic machine. The extruded parts are qualified when the blank heating temperature, mold preheating temperature, and extrusion speed are 930±10℃, 250±10 ℃, and 30 mm/s, respectively.

关 键 词：伞形筒 热挤压 模具 数值模拟 

分 类 号：TG376[金属学及工艺—金属压力加工]