Loading...
Publication
Large scale Binder jet printing using waste materiais
| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 24.71 MB | Adobe PDF |
Abstract(s)
Additive manufacturing (AM) is especially suited for unique objects or low production
batches since it does not require expensive tooling. The AM market has undergone enormous
growth, even though there is still a significant limitation in this technology type when
producing large parts.
Powder bed technology, particularly binder jetting, allows the production of several types
of materials. The print size is directly related to the machine’s build volume size when using
powder bed technology. Moreover, materials used in powder bed processes are usually
high-cost materials, making large prints not affordable. Instead of working with high-cost
types of powder, it is possible to replace them with low cost, biodegradable materials, like
wood, or waste materials like ground tire (GTW). Using materials such as this allows low-cost
production parts while contributing to the incorporation of residues that otherwise would have
to be discarded, with a low environmental impact.
This work studies the usage of waste materials in small grains and calibrated dust with
different sizes as a matrix in a binder jetting machine with a build volume of 1m3. Wood dust
and GTW are being studied and additives can be added to the bulk material to affect the
powder deposit ability, printing behavior, final part properties and post-processing behavior.
It was possible to produce test specimens, but the machine had to be refilled each layer
manually. The rest of the printing process was made automatically, producing specimens
that were tested successfully.
Description
Keywords
Additive manufacturing Binder jetting Ground tire rubber Polyvinyl alcohol Sustainability Wood