Simulation Investigation Of Hybrid Laser-TIG Meltinjection Of Ceramic Particleson Alsurface

In recent years, Laser Melt Injection has been adopt more frequently in creatingcomposites. But most of them focus on steel or titanium as the basic material, whilethere are less research on the aluminum alloy. Laser-TIG Melt Injection technology issti ll in the preliminary exploration stage as a new technology. Because of the poorstability of the process, it is necessary to analysis the factors of laser-TIG MeltInjection process.This article overcomes the discipline of the motion of WC ceramic particles inHybrid Laser-TIG Melt Injection process. We use software ANSYS to simulate thedistribution of the temperature of Hybrid Laser-TIG Melt Injection by the heat sourceGaussian. B y the simulation of the melting pool's temperature field, the pool's shapeand the retain time was found. By using ANSYS FLOTRAN CFD module to simulatethe flowing of the melting pool in laser-TIG Melt Injection process, The regularpattern of the welding pool under different parameters was found.According to fluid dynamics, Javascript scripting language was used on thecalculation of WC ceramic particles trajectory in the injection process. Theconditions of which WC particles could be injected into the pool has been analyzed.It is found that th e speed of the particles arriving at the surface of the pool. Theminimum speed of the minimum speed at which WC particles could be injected in tothe welding pool could be calculat ed . Finally, the movement of the WC particles inthe welding pool has been calculated. The drag force and drag coefficient can bedetermined. The WC particles were injected into the welding pool at the left edge, onthe left of any position, the center and the right of the pool respectively at the speedwhich could be found . Then the trade of WC particles could be got.