Temperature Numerical Simulation of Laser Penetration Welding Based on Calculated Keyhole Profile

Abstract:

According to the calculation model of the keyhole porfile[1], the 3D point cloud data is calculated. Then, the paper establishes a physical model of the keyhole in the laser welding by using the 3D reverse technology. The adaptive mesh generation of the model is processed by the independent development software. Finally this paper establishes a mathematical model of the temperature field in the laser welding, which considers the factor of the welding velocity. A more accurate temperature field is obtained by using the laser welding solver which is a secondary development of OpenFOAM, adding the Guass surface source and the keyhole volume source, and setting the boundary condition of convection and radiation. The result provides more accurate bases for the welding stress field.

• Periodical: Advanced Materials Research (Volumes 314-316)
• Pages: 1238-1241
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.314-316.1238
• Online since: August 2011
• Authors: Ya Jun Yin, Jian Xin Zhou, Tao Chen
• Keywords: Keyhole Profile, Laser Penetration Welding, OpenFOAM, Temperature Field

References

[1] A Kaplan, A model of deep penetration laser welding based on calculation of the keyhole profile[J], J.Phys.D:Appl. Phys. 27(1994)1805-1814.

DOI: 10.1088/0022-3727/27/9/002

[2] Z Xue, L Gu,Y Zhang, Numerical simulation on temperature in laser welding[J], Transactions of the China Welding Institution(in Chinese), 2003, 24(2):79-82

[3] R Zhang, S Katayama, N Yasuaki, D Fan, Numerical simulation of the laser welding by using the Rotary-Gauss body heat source model[J], Electric Welding Machine(in Chinese), 2007, 37(5):51-54

[4] Y Zhou, L Ding, M Li, Simulation the temperature Distribution for laser welding Processing[J], Applied Laser(in Chinese), 2007, 27(5):393-397

[5] J Li，G Han，Y He，Study on simulation of laser welding[J], Electric Welding Machine(in Chinese)，2003，33(9):10-14

[6] X Wu, L Hu, H Du, X Hu, Application of ANSYS software in temperature field value simulation of laser welding[J], Electric Welding Machine(in Chinese), 2002, 32(9):1-3

[7] D Xiong, Y Li, X Zhao, M Li, Numerical simulation of temperature field in deep penetration laser welding under hot and press condition[J], Transaction of the China Welding Institution(in Chinese), 2007, 28(8):41-44

[8] R.Rai, G.G. Roy, T.DebRoy, A computationally efficient model of convective heat transfer and solidification characteristics during keyhole mode laser welding[J], J.Appl.Phys 101, 054909(2007)

DOI: 10.1063/1.2537587