voxeljet AG: EuroMold premiere: 3D printing with Phenolic-Direct-Binding (PDB)

Phenolic resin binder opens up new possibilities

At the EuroMold 2014 trade show in Frankfurt am Main, Germany, voxeljet will be presenting trend-setting process developments for 3D printing at its booth C 130 in Hall 11. The new Phenolic-Direct-Binding method not only offers key advantages for sand printing but also allows for the production of ceramic molds.

FRIEDBERG, Germany — (BUSINESS WIRE) — November 25, 2014 — voxeljet's research laboratory has been doing extensive work on phenolic resin binders for some time. The new binder offers a number of advantages for many 3D printing applications, as process engineer Dr. Florian Mögele can attest: "With this binder, we are able to achieve an incredible level of resolution and precision in 3D printing. At the same time, we have also made significant improvements in terms of stability and sand recycling. And: phenolic resin binders are ideally suited for processing ceramic and other materials."

3D printed, complicated PDB sand molds surpass even the highest expectations. The Phenolic-Direct-Binding method, with its impressive accuracy and increased strength, is setting new trends, especially for complex molds with undercuts, elaborate details and very small radii.

Various base materials useable

The phenolic resin that is used is not toxic and allows for 100% recycling of non-printed particle material. In contrast to conventional binders, the PDB process does not require silica sand to be pre-treated, which means that it can be easily returned to the sand cycle. Another advantage: Phenolic-Direct-Binding also allows for the unlimited use of untreated silica sands with different pH values and ceramic materials.

voxeljet expects to offer the new material-set for various printer platforms by the middle of 2015. Until that time, the company will be working on implementing and optimizing the process for relevant printer platforms: "In PDB, temperature management plays a key role in the quality of the components. In the coming months, we will empirically calculate the optimum parameters for all voxeljet printers. This ensures that the printers reach the best possible quality using a very reliable process," says Dr. Daniel Günther, Head of Research and Development. Of course, interested parties can also obtain advance information about the performance of the new binder method on the basis of standardized benchmark parts.

Company Profile:

voxeljet is a leading provider of high-speed, large-format 3D printers and on-demand parts services to industrial and commercial customers. The Company’s 3D printers employ a powder binding, additive manufacturing technology to produce parts using various material sets, which consist of particulate materials and proprietary chemical binding agents. The Company provides its 3D printers and on-demand parts services to industrial and commercial customers serving the automotive, aerospace, film and entertainment, art and architecture, engineering and consumer product end markets.

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