铝合金联装架焊接变形控制  

Welding deformation control of aluminum alloy connection framework

作　　者：高艳芳 廖传清 万骏 高嘉爽 于彬 夏文吉 Gao Yanfang;Liao Chuanqing;Wan Jun;Gao Jiashuang;Yu Bin;Xia Wenjia(Shanghai Aerospace Equipments Manufacturing Co.,Ltd.,Shanghai 200245,China)

机构地区：[1]上海航天设备制造总厂有限公司,上海200245

出　　处：《焊接》2020年第11期17-20,55,62,共6页Welding & Joining

基　　金：国防基础科研计划资助项目(JCKY2017203B066)。

摘　　要：以铝合金联装架为产品对象,进行了铝合金联装架焊接变形控制的研究。通过焊接组件配对优化、焊接变形预判、焊接工装优化设计、零件焊接余量预留、焊后热处理过程控制等方式,控制了联装架的焊接变形量和焊缝质量。最终,上架对角线长度之差和底架对角线长度之差均不超过3 mm,上架安装面的平面度和底架安装面的平面度均不超过1.3 mm,焊缝质量满足QJ 2698A—2011Ⅱ级标准要求。Taking aluminum alloy connection framework as the product object,whose welding deformation control was researched.Welding deformation and weld quality of connection framework were controlled by methods of optimization of matching welding components,prediction of welding deformation,optimal design of welding fixture,reservation of welding allowance in parts and process control of post weld heat treatment.Finally,the difference of diagonal length of the upper framework and the bottom framework was no more than 3 mm,and the flatness of mounting surface of upper framework and bottom framework did not exceed 1.3 mm.Weld quality of connection framework fulfilled the requirement of level II in QJ 2698A—2011 standard.

关 键 词：铝合金 焊接工装 焊接变形 联装架 SYSWELD 

分 类 号：TG404[金属学及工艺—焊接]