DN2000特大型管模成形仿真分析与试验研究  

Simulation analysis and experiment research of forging processes for DN2000 tube sheet

作　　者：胡振志 郭卫东 肜亮 刘旺 张素芳 吕指挥 

机构地区：[1]中信重工机械股份有限公司,河南洛阳471003 [2]河南省大型铸锻件工程技术研究中心,河南洛阳471003

出　　处：《模具工业》2017年第11期23-27,共5页Die & Mould Industry

摘　　要：针对DN2000特大管模锻件相对壁厚薄、拔长效率低的问题,通过建立有限元分析模型,分析了试制工装生产可行性及对拔长效率的影响,对锻件进行坯料与芯轴贴合情况、拔长时长度增加及成形载荷进行模拟分析。结果表明:采用上平下V砧能够满足该管模锻造拔长生产,拔长效率较高。通过生产试制,验证了上述分析的正确性和可行性。In order to improve the drawing efficiency and solve the small relative thickness problem of the DN2000 tube sheet, the influence of drawing efficiency and the feasibility of pro-prodtion was analyzed by establishing the FEM model. It included the analysis of embracing between the blanks and mandrel, the increase of the length and the simulation analysis of forming force. The results showed that the tube sheet could meet the forging and drawing production with the upper flat and lower V-shaped anvils, and the drawing efficiency was high. Finally the rationality and feasibility of the above analysis was proved by the production experiment.

关 键 词：管模锻件 相对壁厚 拔长效率 FEM 工装 

分 类 号：TG316[金属学及工艺—金属压力加工] TP391.9[自动化与计算机技术—计算机应用技术]