大比例三通接头成形工艺研究及质量控制  

Process study and quality control for forming large-scale duplex fitting

作　　者：王玲[1] 付冬雪[1] 郎利辉[2] 王少华[2] 杨春雷[2] 

机构地区：[1]沈阳飞机工业(集团)有限公司制造工程部,辽宁沈阳110850 [2]北京航空航天大学机械工程及自动化学院,北京100191

出　　处：《锻压技术》2013年第2期57-61,共5页Forging & Stamping Technology

基　　金：工信部国际科技合作资助项目(2010DFA52030)

摘　　要：为适应导管内容物流量的要求,航空航天、汽配等领域上采用大量大比例成形系数的三通接头结构。成形系数为1的大比例接头存在成形难度大、报废率高等许多亟待解决的问题。本文以某型号成形系数为1的大比例三通接头为典型件,对成形中椭圆孔尺寸、模具形状等工艺参数进行设计与优化,并通过试验验证了锥面模胎工装形式相比两次球面模胎工装形式对成形质量的改善,最终成形出了合格零件。For meeting requirements of the large content flow inside the tube, a plenty of large-scale duplex fitting structures are used in the aircraft and aerospace areas. There are many issues to be tackled due to the high scrap rate in the large-scale duplex fitting forming processes. Taking duplex fitting with forming factor of 1 as experiment part, the optimization of the process parameters, tooling types and forming experiments were done. These researches show that the conical forming die is better than spherical die for improving the forming quality and qualified products were formed.

关 键 词：大比例三通接头 成形系数 圆形模胎 锥形模胎 

分 类 号：TH162[机械工程—机械制造及自动化]