کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
5007138 1369161 2018 12 صفحه PDF ندارد دانلود رایگان
عنوان انگلیسی مقاله
Full length articleNumerical simulation of the laser welding process for the prediction of temperature distribution on welded aluminium aircraft components
کلمات کلیدی
Laser welding; T-joint; Fillet weld; Aluminium; Finite element method; SYSWELD code; Thermal transient analysis; Temperature distribution;
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی برق و الکترونیک
پیش نمایش صفحه اول مقاله
Full length articleNumerical simulation of the laser welding process for the prediction of temperature distribution on welded aluminium aircraft components
چکیده انگلیسی

•Prediction of the temperature distribution in T-joint laser welded plates.•Use of “Birth and death” technique for the simulation of the weld fillet.•Non-linear analysis with temperature dependent material properties.•Agreement between predicted and experimental results.

The present investigation is focused to the modelling of the temperature field in aluminium aircraft components welded by a CO2 laser. A three-dimensional finite element model has been developed to simulate the laser welding process and predict the temperature distribution in T-joint laser welded plates with fillet material. The simulation of the laser beam welding process was performed using a nonlinear heat transfer analysis, based on a keyhole formation model analysis. The model employs the technique of element “birth and death” in order to simulate the weld fillet. Various phenomena associated with welding like temperature dependent material properties and heat losses through convection and radiation were accounted for in the model. The materials considered were 6056-T78 and 6013-T4 aluminium alloys, commonly used for aircraft components. The temperature distribution during laser welding process has been calculated numerically and validated by experimental measurements on different locations of the welded structure. The numerical results are in good agreement with the experimental measurements.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics & Laser Technology - Volume 100, 1 March 2018, Pages 45-56
نویسندگان
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