Case Studies

Bespoke Filters : easy made solution for critical foundry part

Bespoke Filters : easy made solution for critical foundry part

In order to produce more efficient filters, Avignon ceramic is printing these specific parts with Zetamix Alumina filaments.

Zetamix filaments are the first making it possible to get ceramic parts with a 99% density by using almost any FDM 3D printer.

While the structure of the foam is randomly obtained in the traditional process, 3D printing allows engineers to design a tailor made and hollow part. A wide range of design and size can be obtained such as gyroid or geometric designs. Therefore, 3D printing technology enables more control of the casting and the accuracy of the filtration by varying not only the design, but also the structure, size and pore size of the filter.

For years, molten metal is filtered by ceramic foams made by impregnating an open cell polymer foam with  ceramic slurries. Then, by sintering  the ceramic the polymer structure disappears and only the ceramic foam remains.

Indeed, filters cannot be produced by regular industrial shaping processes such as moulding or injection because hollow out parts are impossible to obtain with these processes.

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.

For years, molten metal is filtered by ceramic foams made by impregnating an open cell polymer foam with  ceramic slurries. Then, by sintering  the ceramic the polymer structure disappears and only the ceramic foam remains.

Avignon Ceramic 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.  

Have a project similar to this?

We’re always happy to discuss potential new projects and ideas. Get in touch, either via email or phone and we can help make your idea a reality.

Get in touch