Simulation Study on Laser Welding of High Strength Steel to Vehicle

Qiang Wu; Yong Tang; Yong Qiang Yang; Yu Zhong Li

doi:10.4028/www.scientific.net/AMR.143-144.868

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 143-144Simulation Study on Laser Welding of High Strength...

Simulation Study on Laser Welding of High Strength Steel to Vehicle

Abstract:

Based on quasi-stable state heat-transfer control mode, finite difference equation of thermal conductivity in laser welding is deduced. Physical parameter (specific heat) substitutes for phase-changing latent heat, then critical temperature of thermal conductivity welding is determined, so finite difference equation can be solved by MATLAB software. Temperature field distribution is simulated to weldment.Influence of technological parameters such as laser power and welding speed on temperature field are investigated systematically by numerical simulation, these can establish theoretical basis for optimization of technological parameters in laser welding.

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Periodical:

Advanced Materials Research (Volumes 143-144)

Pages:

868-872

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.143-144.868

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Online since:

October 2010

Authors:

Qiang Wu, Yong Tang, Yong Qiang Yang, Yu Zhong Li

Keywords:

Laser Welding, Lower Critical Power, Technological Parameter

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References

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