148 citations · 505 across the 22 of their papers we have counts for
23 papers
Particle Inertia-Driven Pore Formation over Material Property Effects in Laser Powder-blown Directed Energy Deposition
Dong Hee Kang, Samantha Webster, Sampson Canacoo +3
Laser Powder-blown Directed Energy Deposition (LP-DED) offers flexibility for process and materials and high productivity (~5 kg/h), but process-induced pores often compromise mech…
Aeroacoustic signatures reveal fast transient dynamics of vapor-jet-driven cavity oscillations in metallic additive manufacturing
Haolin Liu, S. Kiana Naghibzadeh, Zhongshu Ren +12
Aeroacoustic emissions from intense evaporation are widely measured yet often treated as noisy byproducts and used mainly in empirical monitoring. Here, we show that airborne sound…
Revealing mesoscale bubble and particle dynamics in ultrasound-driven multiphase fluids by ultrafast synchrotron X-ray radiography and hybrid modelling
Ling Qin, Kang Xiang, Iakovos Tzanakis +4
Multiphase fluid flows comprising of mesoscale solid particles, liquid droplets, or gas bubbles are common in both natural and man-made systems, but quantifying the energy transfer…
A Mechanistic Study on Environment Gases in Metal Additive Manufacturing
Zhongshu Ren, Samuel J. Clark, Lin Gao +2
A variety of protective or reactive environmental gases have recently gained growing attention in laser-based metal additive manufacturing (AM) technologies due to their unique the…
Deep learning-based spatio-temporal fusion for high-fidelity ultra-high-speed x-ray radiography
Songyuan Tang, Tekin Bicer, Tao Sun +2
Full-field ultra-high-speed (UHS) x-ray imaging experiments have been well established to characterize various processes and phenomena. However, the potential of UHS experiments th…
High-speed synchrotron X-ray imaging of melt pool dynamics during ultrasonic melt processing of Al6061
Lovejoy Mutswatiwa, Lauren Katch, Nathan J. Kizer +10
Ultrasonic processing of solidifying metals in additive manufacturing can provide grain refinement and advantageous mechanical properties. However, the specific physical mechanisms…