Metal additive manufacturing is a disruptive technology that is revolutionizing the
manufacturing industry. Despite its unrivaled capability for directly fabricating metal parts …

Laser powder bed fusion (LPBF) is a key metal additive manufacturing process and has
attracted increasing attention both in academia and industry. An essential physical issue …

Digital particle image velocimetry (DPIV) is a non-intrusive analysis technique that is very
popular for mapping flows quantitatively. To get accurate results, in particular in complex …

Melt flow plays a critical role in laser metal additive manufacturing, yet the melt flow behavior
within the melt pool has never been explicitly presented. Here, we report in-situ …

A three-dimensional high-fidelity model was developed to simulate the single track formation
of stainless steel 316L during selective laser melting. Different laser powers and scanning …

It was thought that the aerodynamics of flapping flight in birds is fully understood for quite
some time, but recent studies have shown that this is not the case. Bird flight uses …

The molten-pool flow, particularly the keyhole effect, plays a critical role in the formation of
defects in additive-manufacturing and welding processes. In this study, we derive an …

Laser-induced keyholing occurs in additive manufacturing and welding processes, but the
keyhole dynamics have not been well understood. A multiphase and multiphysics numerical …

Aluminium alloys are widely used in many industries due to their high strength-to-weight
ratios and resistance to corrosion. Due to their specific thermophysical properties and …

Although the melt pool convection currents influence the dilution, porosity and distribution of
potentially included hard phase particles such as carbide or other ceramic particles, which …