MJF
Multi Jet Fusion
​Multi Jet Fusion is a powder-based technology but does not require lasers. The powder bed is heated evenly from the start. A thermally conductive liquid is injected when particles need to be selectively melted, and a thermally inhibiting liquid is injected around contours to ensure sharp edges and good surface quality. As lamps are moved across the surface of the powder bed, the injected material dims the heat and aids in even distribution.
Technology
Infrared lamps are used as the energy source for the MJF, which continuously illuminate the print surface. The powder particles to be fused are wetted with a thermally conductive liquid via the print head. The particles absorb the heat from the lamps and fuse with each other and with the underlying layer. To prevent the powder particles from fusing together beyond the intended area, a heat-inhibiting liquid is applied around the contour of the component at the same time. In this way, the 3D object gets an even and smooth surface.
Advantages
Multi Jet Fusion uses a fine-grain PA 12 material that allows thin layers of 80 microns. This creates parts with high density and low porosity compared to parts made with laser sintering. Also, it requires minimal finishing. This shortens lead times, which is ideal for functional prototypes and short runs of ready-to-use parts.
Applications
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Prototypes with mechanical properties comparable to those of injection molded parts
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Series of small components as a cost-effective alternative to injection molding
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Personalized manufacturing, the economical production of unique, complex designs that are manufactured only as single items or in small batches
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Lightweight constructions with complex lattice constructions
Technical Data
Accuracy
± 0,2 mm
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Depending on the project, the accuracy can still be improved.
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Max. Space
380 x 280 x 380 mm
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Layer Thickness
0,08 mm
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Surface Texture
​Unfinished parts have a soft finish with no visible layers, but they can be sandblasted and stained
Minimum Wall Thickness
1 mm (at hinges 0,5mm)
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Materials
PA 12 (Polyamides)
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