【作者】 双远华； 胡建华； 张中元；

【Author】 Shuang Yuanhua~1 Zhang zhongyuan~2 (1.Taiyuan University of Science & Technology 2.Nanjing University of Aeronautics and Astronautics)

【机构】 太原科技大学材料科学与工程学院； 南京航空航天大学机电工程学院；

【摘要】 二辊辊弯成型技术主要用于普通碳钢的卷筒生产,对不锈钢板进行卷筒,仍存在生产不稳定和理论研究工作滞后等问题。本文应用商用Marc有限元软件对二辊不锈钢板生产过程进行了模拟,针对所加工板料变形的内部应力-应变状态进行计算分析;对轧件的咬入动态过程作模拟分析;对下辊采用的聚氮脂在板料弯曲中的变形作了分析。通过工艺参数的模拟计算,优化了成型过程的压下量、上轧辊直径和摩擦系数,为合理设定工艺参数提供了理论依据,并确定了卷筒成型过程的工艺方案。更多还原

【Abstract】 The technology of sheet bending with two rolls is only used in productions of carbon steel for barrel.It has been employed to bend the non-rust steel sheet,and it is still necessary to do some works for its technologies by now.The forming process is simulated by Marc software of FEM,and the equivalent strain,stress and the configuration are calculated.The process of biting sheet is also simulated.Elastic deformation of rubber,which down roll is consists of,is analyzed,and the technical parameters are optimized.By the analyses,the optimal technical parameters can be obtained,such as reduction,diameter of upper roll,and friction coefficient between rolls and sheet.更多还原