电焊机2024，Vol.54Issue(7)：1-11,11.DOI:10.7512/j.issn.1001-2303.2024.07.01
窄间隙激光焊接研究现状与存在的问题
Current Status of Research and Problems of Narrow Gap Laser Welding
摘要
Abstract
As a key technology in the manufacturing process of marine engineering equipment,ships,nuclear power pipe-lines and other fields,the thick plate welding quality determines the safety performance and service life of the equipment.Narrow gap submerged arc welding and narrow gap gas metal arc welding arewidely applied to the welding of plate with the thicknessof more than 20 mm,their higher heat input and high residual stress in the joints limit their application in welding of thick steel plate with high heat sensitivity.Laser welding has the advantages of high energy density,small heat-affected zone,small welding deformation,andsoon,whichis fit for welding of thick steel plate.Laser welding,laser welding with filler wire and laser-arc hybrid welding for narrow gap joint were introduced,their characteristics and problems were analyzed.Among them,laser-arc hybrid welding has the characteristics of higher welding efficiency,higher deposition rate and less thermal damage,which is one of the proper methods to weld thick plate.Atlast,the development prospect of laser welding technology in the weldingmanufacturing of thick plate were summarized and proposed.关键词
窄间隙焊接/厚板/激光焊接/激光-电弧复合焊Key words
narrow gap laser welding/thick plate/laser welding/laser-arc hybrid welding分类
矿业与冶金引用本文复制引用
郭雪洋,董彬,秦国梁,郭怀力..窄间隙激光焊接研究现状与存在的问题[J].电焊机,2024,54(7):1-11,11.基金项目
国家自然科学基金区域创新发展基金重点项目(U21A20129) （U21A20129）
山东省重点研发计划(重大科技创新工程)(2021ZLGX01) （重大科技创新工程）
