Metal AM by means of L-PBF
Laser Powder Bed Fusion (L-PBF) is a fusion-based additive manufacturing technology for metals. Thin layers of metal powder are locally melted by a laser and form a solid body upon cooling. Support structures might be required during printing, which have to be removed in a post-processing step. L-PBF is suitable for the production of prototypes. The following materials can be selected:
- 316L (1.4404)
- Hot-working steel 1.2709
- Titanium Grade 2
Metal AM by means of sinter-based technologies
In case of sinter-based AM technologies a green part is printed. Through the subsequent process steps debinding and sintering the green part is transformed into a nearly dense (>96%) and fully metallic component.
Cold Metal Fusion
This method is performed on conventional SLS machines known from plastic 3D printing. After spreading a thin layer of a feedstock powder (metal powder + binder) in the build box, the binder is locally melted by a laser. No support structures are necessary during printing. The process is suitable for the production of prototypes as well as for the series production of several thousand pieces. Currently, the following materials are available:
- 316L (1.4404)
- Cobalt-Chromium alloy (Stellite)
A wax-like mould is printed layer by layer. After each layer a metal paste is placed in the mould. During printing the component is supported by the surrounding mould material, thus support structures are not required. The MoldJet process enables series production of small to medium quantities up to approx. 100,000 pieces. Currently, the following materials are available:
- Stainless steel (316L, 17-4PH, 15-5PH)
- Tool steel (M2, D2, H13, 4340)
- Inconel 718
plastic tool inserts
Here a tool insert made of a heat resistant polymer is produced by means of established AM technologies for plastics. Afterwards the printed tool insert is fitted into a metallic master form and prototypes can be moulded on conventional injection molding machines. Prototypes and small series up to 200 parts are possible with this method. The whole material portfolio of MIMplus Technologies can be processed.
made of aluminum
A mould tool made of aluminum is much more cost efficient compared to a conventional steel tooling. First samples can be delivered within a few weeks. Small series up to 1.000 parts can be produced using an aluminum mould tool. The same materials as for the classical MIM can be processed with this method.