Case Studies

3D Printed Foundry Filters

3D Printed Foundry Filters

Avignon Ceramics is using 3D Printed Foundry Filters to produce a more efficient filters. In the field of foundry, ceramics are an excellent choice to produce consumable tools, including ceramic filters. Ceramics are the only materials that are both high temperature resistant and chemically stable.

Zetamix filaments are a first. Now it is possible to get 99% dense ceramic parts by using an FDM 3D printer.

Traditional processes only allow for randomly obtained structure. Meanwhile 3D Printed Foundry Filters allow engineers to design a tailor made and hollow part. Favorites include gyroid or geometric designs. Detailing the structure, size and pore size of the filter. Therefore, 3D printing technology enables more control of the casting and the accuracy of the filtration.


Ceramic foams where used to filter molten metal. Indeed, traditional processes such as moulding or injecting can’t manufacture ceramic foams. So, a traditional ceramic foam is made when a polymer structure is coated in a ceramic slurry. Then, by sintering the ceramic the polymer structure disappears and only the ceramic foam remains. This is because hollow structure are impossible to obtain with these processes.

Avignon Ceramics produces ceramic parts for foundry, aerospace and energy industries. The company is historically an  expert on ceramic injection molding and produces cutting edge parts such as aerospace cores.  

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