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激光熔化沉积温度场和应力场有限元模拟研究进展

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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.
Review on finite element simulation of temperature and stress fields in laser melting deposition
Laser Melting Deposition (LMD) technology is a typical additive manufacturing process,but its com-plex 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 consisten-cy,so the Finite Element Method (FEM) has become an important method to analyze the complex heat conduc-tion 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 simula-tion settings,stress field simulation settings,material properties and solution settings. The research progress of fi-nite element simulation of LMD temperature field and stress field,as well as the challenges of current applica-tions were described,the future development trend was put forward,which provides guidance for optimizing the LMD manufacturing process and improving product performance.

Laser Melting Depositionfinite element methodtemperature fieldstress fieldnumerical simulation

黄西娜、陈文静、上官永康

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中国矿业大学(北京)机械与电气工程学院,北京 100083

激光熔化沉积 有限元法 温度场 应力场 数值模拟

国家自然科学基金青年科学基金资助项目中央高校基本科研业务费专项资金资助项目中国矿业大学(北京)大学生创新训练中国矿业大学(北京)大学生创新训练

421023452023ZKPYJD03202304028202304082

2024

10.13228/j.boyuan.issn1006-6543.20240099

粉末冶金工业
中国钢研科技集团有限公司 中国钢协粉末冶金分会 中国机协粉末冶金分会

粉末冶金工业

CSTPCD北大核心
影响因子：0.406
ISSN：1006-6543
年,卷(期)：2024.34(4)
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