大型空心钢锭锻造工艺探讨  

Research on heavy hollow ingot forging process

作　　者：岳文彦[1] 马庆贤[1] 

机构地区：[1]清华大学机械工程系先进成形制造教育部重点实验室,北京100084

出　　处：《锻压技术》2012年第2期10-14,共5页Forging & Stamping Technology

基　　金：国家科技重大专项资助项目(2009ZX04014-051)

摘　　要：大型压力容器筒体锻造过程中,使用空心钢锭相比于实心钢锭具有偏析少、材料利用率高、周期短等优点。通过物理模拟和数值模拟相结合的方法,研究了空心钢锭锻造工艺中压下率、拔长V型砧夹角等工艺参数对变形的影响规律和作用效果,以期为大型空心钢锭锻造工艺的制定提供实验依据和理论基础。In the course of forging the shell of heavy pressure vessel, using the hollow steel ingot has the advantages of less segregation, higher material utilization and shorter production cycle, compared with the solid steel ingot. With the method of combining modeling and numerical simulation, the effect and influence of upsetting reduction rate and other technological parameters on the deformation law of specimen were studied in the forging process, which provides the experimental and theoretical basis for the forging process of heavy hollow steel ingot.

关 键 词：大型锻件 空心钢锭 数值模拟 锻造工艺 

分 类 号：TG316[金属学及工艺—金属压力加工]