Additive manufacturing with phenolic resin

The Phenol Direct Binding (PDB) process is a future-proof solution for 3D printing of complex and filigree sand cores and molds and can be used as an alternative to furan resin. Casting molds printed with phenol 3D-printing are characterized by particularly high resistance to thermal stress and dimensional stability.

In addition to phenolic resin, furan resin or inorganic binder systems can also be supplied by voxeljet.

Your advantages of 3D printing with phenolic resin:

  • High tensile strength:
    Cores printed with phenolic resin show an elongation at break of 250 - 500 N/cm³.

  • Recyclability:
    Unprinted sand can be recycled and reused up to 100%.

  • Material variety:
    Regardless of the pH value of the material, we also offer 3D printing of special sands such as Cerabeads, Kerphalite and Chromite in addition to quartz sands.

  • Quality assurance:
    Due to low loss of ignition as well as low gas formation and hot deformation, high-quality casting results can be achieved.

With the turbo from the 3D printer to 900 hp

Vehicle technology manufacturer Lütgemeier increases flexibility and productivity using our industrial 3D-printing system VX 1000 in order to supply the high-performance car tuning company BRABUS.


Technical data of our phenol molds and cores

Sandtypes

Molding material Silica sand Cerabeads Chromite
Type GS 14/19/25 Cerabeads Chromite
Average grain size 140 µm 200 µm 220 µm
Application Molds and cores with demanding requirements for surfaces High thermal resistance, low thermal extension, good packaging, good strength and surface, alternative to Chromite, Kerphalite or Zircone Goo against buoyancy and buoyancy, increased heat transfer
Total loss of ignition (weight. - %) 2,0 - 2,6 > 1,5 %, >0,5 %  

Bindertypes

Max. size 1,000 x 600 x 500 mm
Molding Material Untreated silica sands in different granulation
Binder type Phenolic binder
Layer thickness 250 - 300 µm, Standard 300 µm
Resolution approx. 200 µm (depending on sand used)
Accuracy ± 0,1 % (min. ± 1,5 * layer thickness)
Bending strength 250 - 500 N/cm² (depending on sand or binder used)
Recycling rate almost 100 % of the unbound sand