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Xuxiao Li

Ph.D. from University of Utah
Mechanical Engineering Department

xuxiaoli.utah@gmail.com

801-209-6239

Research Mechanical Engineer at
Global Engineering and Materials, Inc.

I gained my Ph.D. degree in mechanical engineering at University of Utah, under the supervision of Dr. Wenda Tan. Currently, I am working at Global Engineering and Materials (GEM), Inc. and involved with GEM's Multiphysics Simulation projects. My research interest is the thermal, fluid, and metallurgical modeling for additive manufacturing (3D printing) processes.

A laser is scanning on a bare plate of Ti-6Al-4V. The simulation shows a typical laser keyhole welding process in side (upper left), top (lower left) and isometric (right) views. The laser diameter is 80 um and it scans a distance of 2 mm. The keyhole is formed due to vaporization of metal. The fluctuation of the molten pool is induced by the unstable keyhole. The simulation can be compared to the X-ray high-speed imaging, Cunningham, R., et al., Science (2019) , with matching conditions.
A stationary laser is shining on a powderbed of Ti-6Al-4V. Multi-physics simulation is shown in isometric (left), top (middle) and side (right) views. The simulation can be compared to the X-ray high-speed imaging, Zhao, C., et al., Scientific Report (2017) , with matching conditions.