Numerical simulation of weld pool shape during laser beam welding
Journal Title: International Research Journal of Applied and Basic Sciences - Year 2012, Vol 3, Issue 8
Abstract
A three-dimensional transient numerical model was developed to study the temperature field and molten pool shape during continuous laser keyhole welding. The volume-of-fluid (VOF) method was employed to track free surfaces. Melting and evaporation enthalpy, recoil pressure, surface tension, and energy loss due to evaporating materials were considered in this model. The enthalpy-porosity technique was employed to account for the latent heat during melting and solidification. Temperature fields and weld pool shape were calculated using FLUENT software. The calculated weld dimensions agreed reasonable well with the experimental results. The effectiveness of the developed computational procedure had been confirmed.
Authors and Affiliations
R. Daneshkhah*| Department of Mechanical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran,patientman2004@gmail.com, M. Najafi| Department of Mechanical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran, H. Torabian| Department of Mechanical Engineering, Central Tehran Branch, Islamic Azad University, Tehran, Iran
Keywords
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