Sökning: "powder properties"
Visar resultat 1 - 5 av 335 avhandlingar innehållade orden powder properties.
1. The Effects of Morphology and Surface Oxidation of Stainless Steel Powder in Laser Based-Powder Bed Fusion
Sammanfattning : Laser based-powder bed fusion (LB-PBF) is one of the many techniques within additive manufacturing (AM) that allows for near net shape manufacturing of metallic components. By using powder feedstock, it is possible to spread thin layers of powder and further selectively fuse powder in a repetitive manner until the component is completed. LÄS MER
2. Powder degradation during powder bed fusion processing
Sammanfattning : Powder bed fusion (PBF) techniques, including laser-based powder bed fusion (LB-PBF) and electron beam powder bed fusion (EB-PBF), are two rapidly growing additive manufacturing (AM) processes due to their ability to produce complex geometries in near-net shapes. To attain reproducibility and repeatability in PBF processes, a consistent set of powder properties is vital. LÄS MER
3. Laser-based powder bed fusion of stainless steels
Sammanfattning : The aim of the present work has been to widen the knowledge of how variations within powder manufacturing affect laser-based powder bed fusion processing, and how this processing affects the microstructure and strength of stainless steels. The approach was to keep the processing parameters fixed while the powder feedstock was varied. LÄS MER
4. Powder mechanics and dispersion properties of adhesive mixtures for dry powder inhalers : Conceptualized as a blend state model
Sammanfattning : Inhaled medicines is a therapy that dates back several thousands of years. Nowadays, using various types of inhaler devices to deliver active pharmaceutical ingredients (APIs) to treat respiratory diseases has become common practice. LÄS MER
5. Aspects of building geometry and powder characteristics in powder bed fusion
Sammanfattning : Additive manufacturing (AM) produces near-net-shaped parts directly from a 3D-CAD model in a layer-by-layer manner. One of the most common AM technique for fabricating metallic components is powder bed fusion (PBF). The PBF process has shown great potential in fabricating metallic parts with properties better or comparable to conventional methods. LÄS MER