高颈法兰封闭轧制成形金属流动规律研究  

Study on Metal Flow Law of High Neck Flange Forming by Closed Ring Rolling

作　　者：徐龙庆[1] 肖旻[1] 孙宝寿[1] 束学道[1] 彭文飞[1] 

机构地区：[1]宁波大学机械工程与力学学院,浙江宁波315211

出　　处：《轻工机械》2013年第5期34-36,40,共4页Light Industry Machinery

基　　金：国家自然科学基金资助项目(51075216);浙江省杰出青年基金资助项目(R1110646);浙江省自然科学基金资助项目(LY12E05008);宁波市自然基金项目(2012A610078)

摘　　要：为研究高颈法兰封闭轧制成形中轧制缺陷的产生机理,借助DEFORM有限元分析软件建立了封闭轧制成形仿真模型,并利用软件后处理中的点追踪功能获得了金属在轧制过程中的轴向和径向流动规律。研究结果表明轧件在轧制过程中总体表现为径向压缩、轴向及周向拉伸,同时验证了上下挡板对金属轴向流动的抑制作用。According to the generation mechanism of defects which occurred during high neck flange was produced by closed rolling, the finite element model （FEM） for high neck flange closed rolling process was set up by DEFORM software. Based on the point tracing function including in the post-processor, metal flow law in the rolling process was obtained. The simulation results show that, the work piece during the rolling process behaves radial compression, axial and hoop tension. The two plates which set on the upper and lower face of driving roll have inhibited metal＇s axial-flow effect.

关 键 词：高颈法兰 封闭轧制 数值模拟 金属流动规律 

分 类 号：TG335.19[金属学及工艺—金属压力加工]