Numerical Simulation and Analysis of Temperature Field in Laser Welding of TC4/PEEK
Titanium alloy/engineering plastics composite structure formed by welding has important application value in modern industrial field.In this paper,the finite element model of TC4/PEEK laser welding was established by ABAQUS software.The Subroutine DFLUX was written by Fortran language,and the Gaussian moving welding heat source distribution model was established.The temperature field distribution of laser welding process was obtained.The temperature distribution during laser welding was studied.The influences of laser power,welding speed and spot size on temperature field were studied.The results show that the temperature variation of each node on the welding path is basically the same;when the two welding parameters are constant,the maximum temperature increases with the increase of laser power,the decrease of welding speed,and the decrease of spot radius.The research results pro-vide a reference for laser welding test of two materials and a theoretical basis for further optimizing welding process parameters and improving the quality of welded joints.
Laser weldingNumerical simulationTemperature fieldWelding of dissimilar materials
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