宇航材料工艺2024，Vol.54Issue(6)：78-84,7.DOI:10.12044/j.issn.1007-2330.2024.06.011
0Cr17Ni4Cu4Nb与3Cr19Ni9Mo2N不锈钢带激光焊接接头组织及性能
Microstructure and Properties of 0Cr17Ni4Cu4Nb and 3Cr19Ni9Mo2N Stainless Steel Joint With Laser Welding
郭晨亮 1武婧亭 1焦云雷 1薛江红1
作者信息
- 1. 天津航天机电设备研究所,天津 300301
- 折叠
摘要
Abstract
A laser welding process test was conducted on the lap joint of 0.40mm 0Cr17Ni4Cu4Nb and 0.26mm 3Cr19Ni9Mo2N stainless steel to investigate the microstructure and properties of the welded joint.The structure of the welded specimen was composed of three longitudinal welds created through lap welding.The HKQW-300 laser welding machine was utilized to perform welding joints in an argon atmosphere.The microstructure and mechanical properties of the welded joints were analyzed through tests.The results indicate that,when welding under the process parameters of a laser power of 20W,a defocusing amount of+8mm,a speed of 180mm/min,and argon protection,the weld of the 0Cr17Ni4Cu4Nb and 3Cr19Ni9Mo2N laser welded lap joint exhibits a ferritic weisman structure,with the weld width ranging from 335.3 to 404.0μm.The heat affected zone(HAZ)is narrow.The tensile force of the welded joint exceeds 5.493 9kN,which is better than 73.7％of the tensile force after 3Cr19Ni9Mo2N base metal strengthening,and meets the welding performance requirements of the product.The welding joint demonstrates excellent performance,and the welding seam has no phenomena such as virtual welding and welding penetration.This process has been extensively applied in the development of the pressing belt of the solar wing pressing and releasing mechanism for a satellite.关键词
激光焊接/压紧带/0Cr17Ni4Cu4Nb/3Cr19Ni9Mo2N/显微组织/力学性能Key words
Laser welding/Compact belt/0Cr17Ni4Cu4Nb/3Cr19Ni9Mo2N/Microstructure/Mechanical properties分类
矿业与冶金引用本文复制引用
郭晨亮,武婧亭,焦云雷,薛江红..0Cr17Ni4Cu4Nb与3Cr19Ni9Mo2N不锈钢带激光焊接接头组织及性能[J].宇航材料工艺,2024,54(6):78-84,7.
