基于热效应的航空复材成型Invar钢模具焊接工艺研究  

Research on Welding Process of Invar Steel Die for Aerospace Composite Forming Based on Thermal Effect

作　　者：丁亚伟 孙震 范志强 DING Yawei;SUN Zhen;FAN Zhiqiang(Xinxiang Aviation Industry(Group)Co.,Ltd.,Xinxiang 453000)

机构地区：[1]新乡航空工业(集团)有限公司,新乡453000

出　　处：《现代制造技术与装备》2024年第10期146-148,共3页Modern Manufacturing Technology and Equipment

摘　　要：针对传统点位式航空复材成型Invar钢模具焊接模型效率低、变形大的问题,提出基于热效应的焊接工艺设计。通过设定焊接参数、计算熔敷效率、设置摆动焊缝和反变形角,结合热效应原理,提高焊接效率,并采用层间温度调整和热累积比对进行焊接处理。测试结果显示,在1430℃、1570℃和1620℃条件下,热效应焊接工艺相比传统工艺,焊接变形值更小,表明该工艺更稳定、高效,具有实际应用价值。This study proposes a welding process design based on thermal effects to address the issues of low efficiency and large deformation in the welding model of traditional point based aerospace composite forming Invar steel molds.By setting welding parameters,calculating deposition efficiency,setting swing weld seams and anti deformation angles,and combining the principle of thermal effects,welding efficiency is improved,and interlayer temperature adjustment and thermal accumulation comparison are used for welding treatment.The test results show that under the conditions of 1430℃,1570℃,and 1620℃,the thermal effect welding process has smaller welding deformation values compared to traditional processes,indicating that this process is more stable,efficient,and has practical application value.

关 键 词：热效应 航空复材 Invar钢模具 焊接工艺 航空材料 

分 类 号：V261.34[航空宇航科学与技术—航空宇航制造工程] TG457.11[金属学及工艺—焊接]