不同热源工作模式下熔覆过程多物理场耦合机理研究  

Research on Multi-Physical Field Coupling Mechanism in Cladding Process under Different Heat Source Modes

作　　者：赵峻嘉 陈荣华[1] 王辉[1] ZHAO Junjia;CHEN Ronghua;WANG Hui(Maanshan Iron&Steel Co.,Ltd.,Maanshan,Anhui 243000,China)

机构地区：[1]马鞍山钢铁股份有限公司,安徽马鞍山243000

出　　处：《冶金动力》2025年第2期26-31,共6页Metallurgical Power

摘　　要：为了解决不同热源工作模式对激光熔覆工艺缺乏理论支撑的问题,建立三维激光熔覆过程多物理场耦合数值模型,揭示不同热源工作模式下的激光熔覆过程多物理场耦合瞬时演变机理。通过瞬态热分布计算凝固特征,预测凝固组织形态,重点分析PW、CW工作模式下熔覆过程中温度场、流场和应力场的瞬时演变规律,将数值模拟与试验研究进行对比分析,验证了模型的准确性。该研究为优化不同热源工作模式下的熔覆质量提供重要理论依据。To address the lack of theoretical support for laser cladding processes under different heat source modes,a three-dimensional multi-physical field coupling numerical model of the laser cladding process was established.This model reveals the transient evolution mechanism of multiphysical field coupling in the laser cladding process under different heat source modes.Transient thermal distribution calculations predict solidification characteristics and microstructure morphology.The study focuses on the transient evolution laws of temperature,flow,and stress fields under PW and CW modes,comparing numerical simulations with experimental results to verify the model's accuracy.This research provides important theoretical support for optimizing cladding quality under different heat source modes.

关 键 词：脉冲激光熔覆 多物理场耦合 热源工作模式 

分 类 号：TG456[金属学及工艺—焊接]