Numerical Simulation Of Laer-GTAW Arc Hybrid Welding

The laer-GTAW arc hybrid welding as a new efficient high-quality welding heat source,bring the superiorities of laer welding and arc welding into together, and meanwhile avoidsthe disadvantages of them. Therefore, the laer-GTAW arc hybrid welding is gaining extensiveattention by researchers and industries at home and abroad. Using the numerical simulationmethod to research the laer-GTAW arc hybrid welding could save a large number of cost forthe experimental study and be effectively analyzed. In this paper, I use finite element softwareANSYS to simulate the arc plasma features of laer-GTAW arc hybrid welding.First of all, it simulated the GTAW arc using the software of ANSYS and as the basis forcalculating the hybrid welding arc. To compound the GTAW arc coaxial, the laser heat sourceis set to be taper spiral body. Through changing the parameters of arc current and laser power,this paper study the characteristic of the laer-GTAW hybrid welding arc plasma.The simulated result of laer-GTAW hybrid welding arc plasma shows that the currentdensity, magnetic flux density B, electromagnetic force and the temperature distributionincreasing, especially near the anode area. With the reduction of arc current, the temperature,current density and flow velocity of hybrid welding arc plasma is dropping. The effect of thelaser is becoming more and more apparent. With the increase of the laser power, thetemperature distribution, especially near the anode area, of the laer-GTAW hybrid welding arcplasma is rising. This work of simulating the laer-GTAW hybrid welding arc plasma could laya foundation for further study.