Numerical Modelling Of Thermal And Structural Phenomena In Yb:YAG Laser Butt-Welded Steel Elements

Archives of Metallurgy and Materials

S. Stano¹  M. Kubiak²  W. Piekarska²  Z. Saternus² 

[1] ELDING INSTITUTE, 16-18 B?OGOS?AWIONEGO CZES?AWA STR., 44-100 GLIWICE, POLAND;INSTITUTE OF MECHANICS AND MACHINE DESIGN FOUNDATIONS, CZESTOCHOWA UNIVERSITY OF TECHNOLOGY, 73 D?BROWSKIEGO STR., 42-200 CZ?STOCHOWA, POLAND

关键词: Keywords: Laser welding;    heat transfer;    phase transformations;    numerical modelling;    Kriging method;   

DOI  :  10.1515/amm-2015-0213

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

The numerical model of thermal and structural phenomena is developed for the analysis of Yb:YAG laser welding process with the motion of the liquid material in the welding pool taken into account. Temperature field and melted material velocity field in the fusion zone are obtained from the numerical solution of continuum mechanics equations using Chorin projection method and finite volume method. Phase transformations in solid state are analyzed during heating and cooling using classical models of the kinetics of phase transformations as well as CTA and CCT diagrams for welded steel. The interpolated heat source model is developed in order to reliably reflect the real distribution of Yb:YAG laser power obtained by experimental research on the laser beam profile.

【 授权许可】

Unknown