Research on the process and molten pool flow mechanism of laser cladding Inconel 625  

作　　者：Hu Xiaofeng Pan Jiajing An Zhou Lyu Xingyue Lu Kun Wang Zifu 胡校锋;潘家敬;安洲;吕惺玥;卢昆;王子福

机构地区：[1]College of Electromechanical Engineering,Qingdao University of Science and Technology,Qingdao 266061,China [2]College of Materials Science and Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China [3]Qingdao Tianhuichen Technology Co.,Ltd.,Qingdao 266100,China

出　　处：《China Welding》2024年第4期32-41,共10页中国焊接(英文版)

基　　金：supported by Natural Science Foundation of Shandong Province of China(Grant No.ZR2023ME201);Qingdao Key Technology Research and Industrialization Demonstration Project(23-1-2-qljh-17-gx).

摘　　要：In order to investigate the process of laser cladding(LC)Inconel 625 alloy powder on Q235 steel plate,this paper focuses on analyzing the effects of different process parameters on the temperature field,stress field and flow behavior of the molten pool through a combination of finite element simulation and experiment.The simulation part established a geometric model,applied the Goldak double el-lipsoid heat source model,and simulated the LC process by varying the laser power and scanning speed.For the experimental part,LC equipment was used,parameters such as laser power and scanning speed were adjusted,and the molten pool dynamics were observed by in-frared temperature measurement and high-speed photography.The results show that the laser power and scanning speed are the key factors affecting the quality of cladding,and the experimental observation coincides with the simulation results,which verifies the validity of the simulation method and provides theoretical basis and experimental support for the optimization of the LC process.

关 键 词：laser cladding Inconel 625 numerical simulation temperature field molten pool flow 

分 类 号：TG1[金属学及工艺—金属学]