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 …

Powder spreading is a crucial step in the powder bed fusion process, which controls the
quality of powder bed and consequently affects the quality of printed parts. To date …

It is widely accepted that gas porosity and lack-of-fusion flaws can degrade both static and
dynamic mechanical performance of additively manufactured components, limiting the use …

The packing density of the powder layer plays a key role in the final quality of the parts
fabricated via powder-bed-based (PBB) additive manufacturing. This paper presents a …

Selective laser sintering (SLS) is a powder bed fusion technology that uses a laser source to
melt selected regions of a polymer powder bed based on 3D model data. Components with …

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 …

Laser powder bed fusion (L-PBF) is one of the most promising additive manufacturing (AM)
methods which provides an exceptional opportunity to improve the existing designs and …

Metal additive manufacturing has seen extensive research and rapidly growing applications
for its high precision, efficiency, flexibility, etc. However, the appealing advantages are still …

Powder spreading process is to use a spreader such as blade or roller to spread powder
layers for subsequent fusion in powder bed fusion additive manufacturing. In this work, the …