Elementum 3D was introduced to TAE by EOS, a leading laser powder bed Fusion (LPBF) printer manufacturer. A trusting relationship was quickly established between the Engineering Teams. It was an ideal combination of production and technical support for a company like TAE who needs strong industrial partners to build their components.
“Printing the Plasma Generator anode with Elementum 3D was a great experience. Their deep knowledge of the 3D-printing process, together with a materials expertise, has given us the confidence to pursue other projects with Elementum 3D,” said Vincent Pilard, TAE Project Engineer.
TAE found that the main challenge for this project was selecting the right choice of material. The Plasma Generator anode body was originally composed of two materials (CuCrZr and SS316) but it would now have only one body. TAE’s first choice was to use CuCrZr, based on early-stage AM development and the experience they gained. Elementum 3D engineers proposed GRCop-42 as an alternative material, with a turn-key heat treatment (HIP) solution, ensuring high mechanical strength and thermal conductivity. After having printed and successfully measured the quality of the GRcop-42 samples, TAE decided to use this solution for all their Plasma Generator anode bodies. Since then, it’s a standard material they plan to use in many applications dealing with thermal loads.
Once the testing and prototyping were complete, a successful result was achieved right away. TAE didn’t see any problem with the material or the 3D printed features. After the final machining and cleaning, they assembled the part and ran several tests, and the result was the first successful printing of a 3D-printed functional part to be used in TAE’s fusion experiments.
TAE reported back to us that the project met their expectations in many areas. They not only obtained a more efficient design, but by using AM, they reduced the initial cost and lead time. The transition from conventional machining to a monolithic AM build saved TAE around $10,000 per plasma generator, which includes the cost of chemical cleaning and final machining, both necessary post-processing steps for many (but not all) 3D-printed parts. Therefore, when you consider TAE’s need for four or eight plasma generators per accelerator system, plus spares and test stands, it represents a cost saving of over $800,000 on their Copernicus program -- just for this part! Furthermore, this project has paved the road for TAE to save time and money on many future critical parts and applications.
The other benefit they mentioned was establishing a trusted AM partnership with Elementum 3D -- one that can contribute to the development of TAE’s advanced designs and ensure high quality manufacturing, within a controlled time and cost frame.
Recently our TAE friends informed us that they will be advancing the design of their water-cooled accelerator grid, with the goal of printing a first prototype by the beginning of 2024.
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