Numerical simulation of hybrid laser welding with induction pre- and post-heating
KOTLAN, V., HAMAR, R., PÁNEK, D., DOLEŽEL, I. Numerical simulation of hybrid laser welding with induction pre- and post-heating. In Využití laserů v průmyslu. Plzeň: MATEX PM s.r.o., 2015. s. 86-93.
|Druh:||STAŤ VE SBORNÍKU|
|Anglický název:||Numerical simulation of hybrid laser welding with induction pre- and post-heating|
|Název zdroje:||MATEX PM s.r.o.|
|Autoři:||Ing. Václav Kotlan Ph.D. , Ing. Roman Hamar Ph.D. , Ing. David Pánek Ph.D. , Prof. Ing. Ivo Doležel CSc. ,|
|Abstrakt EN:||A novel way of continuous welding of steel bodies is modeled, where the high-temperature heating is realized by a laser beam. The process is supplemented with pre-heating and post-heating of the welding trace by a classic inductor in order to obtain smooth weld, and to avoid unacceptably high temperature gradients and subsequent mechanical stresses in the processed material. Its continuous mathematical model is solved numerically in 3D under several acceptable simplification assumptions. The solution takes into account the material non-linearities (saturation curve of the welded steel and temperature dependences of its physical properties). The methodology is illustrated with a typical example whose selected results are verified by experiment.|