矿山装备曲轴激光再制造数值模拟及性能调控  

Numerical simulation and performance control of laser remanufacturing of mine crankshaft

作　　者：王云飞 程延海[1] 周嘉利 耿汝伟 万义兴 Valerii Cherniienko Wang Yunfei;Cheng Yanhai;Zhou Jiali;Geng Ruwei;Wan Yixing;Valerii Cherniienko(School of Mechanical Engineering,China University of Mining and Technology,Jiangsu Xuzhou,221116,China;EO.Paton Electric Welding Institute of the National Academy of Sciences of Ukraine,Kiev,03150,Ukraine)

机构地区：[1]中国矿业大学机电工程学院,江苏徐州221116 [2]乌克兰国家科学院巴顿焊接研究所,乌克兰基辅03150

出　　处：《机械设计与制造工程》2023年第10期15-20,共6页Machine Design and Manufacturing Engineering

基　　金：国家重点研发计划(2023YFE0201600);中央高校基本科研业务费专项资金(2021ZDPY0223);江苏高校优势学科建设工程资助项目。

摘　　要：针对矿山装备发动机曲轴激光熔覆过程中温度分布对熔覆层质量的影响,利用ANSYS软件及生死单元法对熔覆过程进行模拟仿真,得到不同工艺参数下激光熔覆层的温度场,获得了熔池温度及冷却速度的变化规律。结果表明:熔池最高温度受激光功率的影响比较大,冷却速度与扫描速度呈正相关,热影响区随着扫描速度的增加而减小。温度场分布与红外摄像仪拍摄结果比较接近,验证了模型的可靠性。Aiming at the influence of temperature distribution on cladding quality during laser cladding of crankshaft of mine equipment engine,ANSYS software and life-death unit technology are used to simulate the cladding process.The changing law of temperature and cooling rate of molten pool are analyzed by the temperature field of laser cladding layer under different process parameters.The results show that the maximum temperature of the molten pool is greatly affected by the laser power.The cooling rate of the molten pool is positively correlated with the scanning speed,and the heat affected zone decreases with the increase of the scanning speed.The distribution of temperature field is close to that of infrared camera,which verifies the reliability of the model.

关 键 词：矿山装备 曲轴 激光熔覆 温度场 熔池 

分 类 号：TG665[金属学及工艺—金属切削加工及机床]