scholarly journals Numerical Modeling of Temperature Distribution in Laser Beam Welding of 304 Stainless Steel

Author(s):  
Pramod Kumar et al., Pramod Kumar et al., ◽  
2011 ◽  
Vol 287-290 ◽  
pp. 3112-3115
Author(s):  
Tsung Yuan Kuo ◽  
Huan Chang Lin ◽  
Tze Yuan Liao ◽  
Chih Hua Kuo ◽  
Tsung Jen Han

This study uses the relative tensile strength of weld and base metal as a quality factor for the Taguchi analysis in laser beam welding of stainless steel. The result shows that the optimum process parameters can be obtained reasonably even in the case of the base metals have a larger property variation or the operation setup is not controlled well properly.


2011 ◽  
Vol 383-390 ◽  
pp. 6225-6230
Author(s):  
K.R. Balasubramanian ◽  
T. Suthakar ◽  
K. Sankaranarayanasamy ◽  
G. Buvanashekaran

Laser beam welding (LBW) is a fusion joining process that uses the energy from a laser beam to melt and subsequently crystallize a metal, resulting in a bond between parts. In this study, finite element method (FEM) is used for predicting the weld bead profile of laser welding butt, lap and T-joints. A three-dimensional finite element model is used to analyze the temperature distribution weld bead shape for different weld configurations produced by the laser welding process. In the model temperature-dependent thermo physical properties of AISI304 stainless steel, effect of latent heat of fusion and convective and radiative boundary conditions are incorporated. The heat input to the FEM model is assumed to be a 3D conical Gaussian heat source. The finite element software SYSWELD is employed to obtain the numerical results. The computed weld bead profiles for butt, lap and T-joints are compared with the experimental profiles and are found to be in agreement.


2015 ◽  
Vol 775 ◽  
pp. 138-142
Author(s):  
Daniel Drimal ◽  
Frantisek Kolenic

Laser beam welding of the absorption tubes made from stainless steel with increased boron content represent suitable production method of storage for spent nuclear fuel. This contribution presents results of weld joints investigation. The experiments were performed on borated stainless steel AISI 304 B6B with boron content 1.74 % wt. Weld joints were prepared by laser beam welding using fiber laser generator and examined by optical and electron microscopy.


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