超大厚壁法兰锻件成形工艺的研发  

Research and Development of Forming Process for Super Heavy Flange Forgings with Thick Wall

作　　者：万明珍 朱乾皓 吴剑 张斌 陈艺杰 陈克宇 WAN Mingzhen;ZHU Qianhao;WU Jian;ZHANG Bin;CHEN Yijie;CHEN Keyu(Zhangjiagang Hailu Annular Forging Co.,Ltd.,Zhangjiagang 215626 China;School of Material Science and Engineering,Jiangsu University,Zhenjiang 212013,China)

机构地区：[1]张家港中环海陆特锻股份有限公司,江苏张家港215626 [2]江苏大学材料科学与工程学院,江苏镇江212013

出　　处：《热加工工艺》2020年第5期123-125,共3页Hot Working Technology

摘　　要：针对超大厚壁法兰成形困难问题,用锻造模拟软件Forge对φ5350mm×φ3750mm×200mm环件进行了径轴向轧制有限元分析,给出了工件辗环之前环坯的最佳尺寸。采用开坯+辗环+芯轴拔长+局部镦粗+马架扩孔+粗车+辗环成形工艺,最终生产出了符合要求的产品,解决了超大厚壁法兰轧制成形困难的问题。Aiming at the forming difficulty of super large thick-walled flange, the finite element analysis of φ5350 mm×φ3750 mm×200 mm ring parts was carried out by using the forging simulation software Forge. The optimum size of ring blank before ring rolling was given. By adopting the blanking +mandrel drawing +horse-rack reaming process +local upsetting spinning forming +ring rolling forming process, the products which meet the requirements are finally produced, and the problem of forming super-large thick-wall flange is solved.

关 键 词：大型法兰 马架扩孔工艺 局部镦粗工艺 有限元分析 

分 类 号：TG335[金属学及工艺—金属压力加工]