激光熔化沉积温度场和应力场有限元模拟研究进展  

Review on finite element simulation of temperature and stress fields in laser melting deposition

作　　者：黄西娜 陈文静 上官永康 HUANG Xina;CHEN Wenjing;SHANGGUAN Yongkang(School of Mechanical and Electrical Engineering,China University of Mining and Technology-Beijing,Beijing 100083,China)

机构地区：[1]中国矿业大学(北京)机械与电气工程学院,北京100083

出　　处：《粉末冶金工业》2024年第4期152-160,共9页Powder Metallurgy Industry

基　　金：国家自然科学基金青年科学基金资助项目(42102345);中央高校基本科研业务费专项资金资助项目(2023ZKPYJD03);中国矿业大学(北京)大学生创新训练项目资助(202304028,202304082)

摘　　要：激光熔化沉积(Laser Melting Deposition,LMD)技术是一种典型的增材制造工艺,但其复杂的热传导和应力变形问题对成形产品的质量和性能有重要的影响。采用传统实验分析方法成本高且难保证一致性,因此有限元法(Finite Element Method,FEM)成为对LMD制造过程中复杂的热传导和应力演化进行分析的重要手段。综述了LMD温度场和应力场有限元模拟的关键因素和研究方法,包括温度场模拟设置、应力场模拟设置、材料属性以及求解设置;阐述了LMD温度场和应力场有限元模拟的研究进展以及当前应用的挑战并提出了未来的发展趋势,为优化LMD制造过程和提高产品性能提供了指导。Laser Melting Deposition(LMD)technology is a typical additive manufacturing process,but its complex heat conduction and stress deformation problems have an important impact on the quality and performance of the formed product.The traditional experimental analysis method is expensive and difficult to ensure consistency,so the Finite Element Method(FEM)has become an important method to analyze the complex heat conduction and stress evolution in the LMD manufacturing process.In this paper,the key factors and research methods of LMD temperature and stress field finite element simulation are reviewed,including temperature field simulation settings,stress field simulation settings,material properties and solution settings.The research progress of finite element simulation of LMD temperature field and stress field,as well as the challenges of current applications were described,the future development trend was put forward,which provides guidance for optimizing the LMD manufacturing process and improving product performance.

关 键 词：激光熔化沉积 有限元法 温度场 应力场 数值模拟 

分 类 号：TG665[金属学及工艺—金属切削加工及机床]