Numerical Simulation Temperature Field of Laser Cladding Titanium Alloy

Abstract:

Abstract: In order to control the thermal stress of cladding, a numerical simulation of temperature field during multi-track & multi-layer laser metal deposition (LMD) process is developed with ABAQUS based on “element birth and death” technology of FEM. The dynamic variances of temperature field and stress field of forming process are calculated with the energy compensation of interaction between molten pool-powder. The temperature field, temperature gradient, thermal stress field and distribution of residual stress are obtained. The results indicate that although the nodes on different layers are activated at different time, their temperature variations are similar. The temperature gradients of samples are larger near the molten pool area and mainly along z-direction.

• Periodical: Applied Mechanics and Materials (Volumes 117-119)
• Pages: 1633-1637
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.117-119.1633
• Online since: October 2011
• Authors: Guang Yang, Wei Wang, Lan Yun Qin, Xing Lang Wang
• Keywords: Laser Meter Deposition Shaping, Numerical Simulation, Temperature Gradient, Transient Temperature Field

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