Audi Toolmaking has elaborated a 1:2 replica of a 1936 Auto Union Typ C by using a 3D printer.
Built on a 1:2 scale, this Silver Arrow model stays true to the real deal and was created by implementing selective-sintering laser technology using metallic powder that has a grain size of 15 to 40 thousands of a millimeter which is about half of the diameter of a human hair. This means the tech is very flexible and enables production of various parts that have complex geometries which are hard to produce with conventional methods.
Audi says they are currently 3D printing components made from steel and aluminum that have a length of up to 240 mm and a maximum height of 200 mm. The Ingolstadt-based marque goes on to specify the 3D-printed parts benefit from a higher density compared to the components manufactured by hot forming or die casting.
The Volkswagen Group currently has 14 toolmaking units in nine countries and they are setting up cooperative ventures to enhance research and development in this domain, with the top priority being the implementation of metallic 3D printing and 3D printing in the sand-printing method.
Metal printing was used to create all of the metallic bits and pieces of this 1936 Auto Union Typ C replicated on a 1:2 scale. One of the most important goals of the extensive R&D work is to apply metal printers in series production, but that will take a while.