激光束位姿对激光熔化沉积层截面形貌的影响  

Research on Influence of Laser Beam Posture on Cross-section Morphology of Laser Melt Deposits

作　　者：刘殿海[1,2] 何振丰 赵吉宾 王志国[1,2] LIU Dianhai;HE Zhenfeng;ZHAO Jibin;WANG Zhiguo(Shenyang Institute of Automation,Chinese Academy of Sciences,Shenyang 110016,China;Institutes for Robotics and Intelligent Manufacturing,Chinese Academy of Sciences,Shenyang 110016,China)

机构地区：[1]中国科学院沈阳自动化研究所,辽宁沈阳110016 [2]中国科学院机器人与智能制造创新研究院,辽宁沈阳110169

出　　处：《热加工工艺》2021年第10期35-39,共5页Hot Working Technology

基　　金：国家重点研发计划项目(2016YFB11005)。

摘　　要：在不同激光束位姿下进行多个基体倾斜角度(0°、15°、30°、45°)激光熔化沉积试验研究。分析了沉积层外观与形貌特征,以获得两种不同激光束位姿状态下基体倾斜角度对沉积层形貌的影响机制。结果表明:在小倾斜角度(0~30°)范围内,两种激光束位姿沉积层外观质量差距不大;在大倾斜角度(30°以上)范围内,激光束与基体面相对垂直的位姿状态,其沉积层外观质量更好,更有利于界面冶金结合。Laser melting deposition experiments of multiple substrate tilt angles(0°, 15°, 30°, 45°) under different laser beam postures were performed. The appearance and morphology of the deposited layers were analyzed to obtain the influence mechanism of the substrate tilt angle on the morphology of the deposited layers under two different laser beam postures. The results show that there is not much difference in the appearance quality of the two laser beam postures at small tilt angles(0°-30°). But at large tilt angles(> 30°), the posture of the laser beam relatively perpendicular to the substrate surface has better appearance quality of the deposited layer, which is more conducive to the interface metallurgy.

关 键 词：激光束位姿 激光熔池沉积 外观形貌 

分 类 号：TG456.7[金属学及工艺—焊接]