Publication alert
New paper out on "Design and analyses of powder deposition, gas flow, and productivity for a rotary laser powder bed fusion system"
In this study, we present a novel rotary laser powder bed fusion (PBF-LB/M) system (RAPTURE), continuously deposits powder and extracts soot over a stationary build plate. Through CFD simulations and experimental validation, we demonstrate that an angled recoater with a narrow outlet enables stable and uniform powder flow after just a few layers. We optimized a square grid nozzle to produce laminar gas flow while minimizing powder disturbance. By eliminating recoater idle time, RAPTURE achieves up to 52.5% productivity improvement for thin-walled annular parts. This architecture offers a compelling alternative to rectilinear designs, with further enhancements underway.
Open-access link: external page click here.
