局部冷却拉深在厚壁圆筒件成形中的应用  

Application of Drawing with Local Cooling in Forming of Cylinder with Thick Wall

作　　者：周朝辉[1] 曹海桥[1] 吉卫[1] 何大钧[2] 王孝培[2] 

机构地区：[1]中国工程物理研究院机械制造工艺研究所,四川绵阳621900 [2]重庆大学机械学院,重庆400044

出　　处：《锻压装备与制造技术》2003年第4期31-33,共3页China Metalforming Equipment & Manufacturing Technology

摘　　要：介绍了厚壁圆筒件的拉深成形工艺。建立了成形热力耦合刚粘塑性有限元模型并进行了模拟计算。分析了金属应力、应变、成形载荷、温度场及颈缩缺陷与成形工艺、预制坯尺寸、模具尺寸、冷却条件的关系,提出了消除颈缩缺陷的解决方案。Drawing technology with local cooling in forming of cylinder with thick wall has been introduced and FE model of forming thermodynamics coupling rigidity viscidity plasticity has been established and simulated calcula-tion done.Relation of metal stress,strain,forming load,temperature field and neck contraction defect with forming technology,preform size,die size and cooling conditions have been analysed and scheme of eliminating neck con-traction defect has been set forward.

关 键 词：塑性加工 局部冷却拉深 厚壁圆筒件 有限元 数值模拟 

分 类 号：TG386.32[金属学及工艺—金属压力加工] TB115[理学—数学]