Abstract Scope |
PA12 polymer powders, particularly those produced via precipitation, have set a benchmark in Polymer Powder Bed Fusion technologies, such as Selective Laser Sintering (SLS) and High Speed Sintering (HSS). So far, filled powder materials were made either by dry-blending fillers into an existing powder or by milling compounds. However, each came with the one or other disadvantage due to the production method used. A promising and innovative solution to overcome these disadvantages is found in core-shell particle design. This presentation will discuss latest core-shell particles and their properties in comparison to dry-blended or milled particles. The special properties of this kind of precipitated core-shell particles are described in more detail by examining a development product. To illustrate the benefits of such core-shell particle powders in Powder Bed Fusion processes, we will highlight relevant differences including energy absorption, the effects of free fine-particles and the like. |