Existing commercial three-dimensional (3D) printing systems based on powder bed fusion
approach can normally only print a single material in each component. In this paper …

In this paper, we present a new approach of combining point-by-point selective powder
delivery with powder bed fusion for multiple material (metal/glass) components printing …

In this report, the dry delivery of polyamide 12 powders by vibrating capillary steel nozzles is
investigated and discussed regarding its potential for powder layer preparation in Laser …

Laser-based additive manufacturing is a group of manufacturing processes widely used to
produce three-dimensional near net shape components. Lasers can provide localized and …

Continuous feeding of small quantities of powder is increasingly applied in pharmaceutical
manufacturing. With that regard, what is crucial is not only the feasibility, but also the …

Precise and effective feeding of small powder quantities remains a challenge in many fields,
including pharmaceutical development and production. This paper demonstrates that a …

Although vibration-assisted powder delivery systems have been developed and studied in
the literature, their characteristics and principles of operation are generally not well suited for …

Highly potent active pharmaceutical ingredients (APIs) and low-dose excipients, or
excipients with very low density, are notoriously hard to feed with currently available …

Continuous feeding of powders is critical to ensure manufacturing quality in laser-based
additive manufacturing processes. However, current powder delivery systems are either not …

Ultrasonic vibration-assisted powder feeding (UVPF) technology enables precise point-by-
point delivery of powder in additive manufacturing. However, it is prone to compaction and …