20MnNiMo高压容器左封头热模锻数值模拟  

Numerical Simulation of Hot Die Forging for 20MnNiMo Steel High Pressure Vessel Left Head

作　　者：华凯旋[1] 余小鲁[1] 王柯智 

机构地区：[1]安徽工程大学高性能有色金属材料省级重点实验室,安徽芜湖241000

出　　处：《热加工工艺》2016年第9期132-136,共5页Hot Working Technology

基　　金：安徽省科技计划重点实验室项目(1106c0805011);安徽省高等学校省级自然科学研究项目(KJ2009B134)

摘　　要：针对高压容器封头的热模锻工艺,利用Deform-3D软件对其进行了热力耦合模拟分析。得出了封头热模锻成形的应力和应变分布、金属流动规律以及始锻温度、摩擦因子、锻造速度分别对材料流动、上模磨损和成形载荷的影响规律,并结合经验及模拟获得了合理的工艺参数范围。结果能为提高模具寿命以及成形工艺的研究提供理论支持。Aiming at the hot die forging technology of high pressure vessel head, its thermal-mechanical coupling simulation was carried out by using Deform-3D software. The stress and strain distribution, and metal flow law of the hot die forging of the head were obtained. The effects of process parameters on results（initial forging temperature on material flow,friction factor on top die wear and forming speed on forming load） were obtained. Combined with the experience and simulation, the reasonable process parameters were also obtained. The results can provide theoretical support for improving the life of the die and forming process research.

关 键 词：高压容器 左封头 热模锻 数值模拟 

分 类 号：TG316.3[金属学及工艺—金属压力加工]