Powder spreading in powder bed fusion is a recoater-powder interaction shaped by cohesion, particle size distribution, and particle shape. This article maps streaking, short-feeding, and layer non-uniformity back to their underlying mechanisms and separates powder-driven causes from blade wear and spreading speed.
As aerospace metal additive manufacturing capacity expands, more reused powder is going back into qualified builds. The virgin-to-reused blend ratio decision depends on PSD shift, satellite formation, and morphology drift, and cannot be settled by a single powder check disconnected from the part's stress state.
Sintered contacts, additive manufactured heat exchangers, EV motor components, and conductive pastes each require a different copper powder. This article explains why morphology, particle size distribution, oxygen content, and packing density are engineering variables, and how to specify them correctly for electrification applications.
Sustainable powder metallurgy depends on controlled powder loops, [...]
Metal powder feedstock quality has a direct effect [...]
Biodegradable magnesium alloy powders are gaining attention in [...]
Rare earth powders now sit in the control [...]
Core-shell and coated powders let you engineer surface [...]
Smart powder processing in additive manufacturing links engineered [...]
The relevance of powder testing for circular economy [...]
