Numerical simulation of transient temperature field during laser keyhole welding of 304 stainless steel sheet

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 ener...

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Bibliographic Details
Published inOptics and laser technology Vol. 43; no. 4; pp. 870 - 873
Main Authors Wang, Renping, Lei, Yongping, Shi, Yaowu
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.06.2011
Subjects
Evaporation
Keyholes
Laser beam welding
Laser welding
Mathematical models
Melting
Numerical simulation
Temperature distribution
Temperature field
Weld metal pool
Welding
Numerical simulation
Laser welding
Temperature field
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Summary: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.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0030-3992
1879-2545
DOI:10.1016/j.optlastec.2010.10.007