金属加工（热加工）Issue(11)：20-24,5.
钢桥梁U肋角接全熔透焊缝高效焊接技术的应用研究
Research on the application of high-efficiency full penetration welding technology for the corner joint of steel bridge U-stub
摘要
Abstract
This paper mainly introduces the common problems of stress concentration at the root of welding seam after welding U-rib and face groove of steel structure bridge,which are easy to produce fatigue cracks and restrict the service life of steel bridge.The automatic welding technology of robot and high frequency pulse deep penetration arc welding power source and laser-MAG arc composite welding technology are proposed.The welding method,welding process test and welding process in the welding process of U-rib and panel were tracked and studied,and the automatic application of the welding technology was prospected.The efficient automatic welding technology of full permeability weld of U-rib and face plate is adopted to comprehensively improve the welding quality of U-rib weld,thereby improving the stress characteristics of U-rib bridge panel and effectively ensuring the operational service life of steel bridge.关键词
U肋/坡口熔深/单面焊双面成形/全熔透/自动化Key words
U-stub/groove penetration/single-side welding molding/full penetration/automation引用本文复制引用
王旭,李维维..钢桥梁U肋角接全熔透焊缝高效焊接技术的应用研究[J].金属加工（热加工）,2025,(11):20-24,5.基金项目
甘肃省科协企业技术创新项目(GXHQY20240328-1). （GXHQY20240328-1）
