Melting powder consolidating
The engines are contained in a printed protective nacelle, also DMLS-printed, to prevent fault propagation in the event of an engine failure.The ability to 3D print the complex parts was key to achieving the low-mass objective of the engine.Additionally, DMLS allows for more rigorous testing of prototypes.Since DMLS can use most alloys, prototypes can now be functional hardware made out of the same material as production components.The two main methods of metal powder production are gas atomisation and plasma atomisation.Generally used for the production of high purity reactive metals with high melting points such as titanium alloy Ti6Al4V.The inert gas stream causes the molten metal to solidify, and the spherical particles are collected at the bottom of the chamber.
Once this "build file" has been completed, it is "sliced" into the layer thickness the machine will build in and downloaded to the DMLS machine allowing the build to begin.
Powder characteristics are very important for successful powder bed fusion.
Renishaw make sure that the powders supplied for their additive manufacturing systems are of the highest quality.
This technology is used to manufacture direct parts for a variety of industries including aerospace, dental, medical and other industries that have small to medium size, highly complex parts and the tooling industry to make direct tooling inserts. The technology is used both for rapid prototyping, as it decreases development time for new products, and production manufacturing as a cost saving method to simplify assemblies and complex geometries.) of 250 x 250 x 325 mm, and the ability to ‘grow’ multiple parts at one time, The Northwestern Polytechnical University of China is using a similar system to build structural titanium parts for aircraft.
On September 5, 2013 Elon Musk tweeted an image of Space X's regeneratively-cooled Super Draco rocket engine chamber emerging from an EOS 3D metal printer, noting that it was composed of the Inconel superalloy.