Metal Additive Manufacturing Conference 2019

Since 2 years or so AIM Sweden is working closely with Siemens Gas & Power in Duisburg with the goal to qualify the production of shrouded compressor impellers based on the EBM technology. This application sets up number of technical challenges that calls for solutions which are not to be found in the “std EBM toolbox”. AIM Sweden is well under way to do so and we look forward to share some of these experiences. Shrouded impellers has internal cavities or flow paths that require internal support structure. Removing these support structures and post process these surfaces to an acceptable quality is one of the key challenges. Finding a suitable post processing method is key but it has also proven to be necessary to work outside the normal contour melting strategies.