3D Printing

MultiJet modeling with the HP Jet Fusion

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MultiJet modeling with the HP Jet Fusion

The MultiJet modeling technology developed by HP opens up new possibilities in additive manufacturing

As early as 2013, the then Hewlett-Packard (HP) boss Meg Whitman had announced her own 3D printer for mid-2014. However, it was to take a little longer before the company finally launched its two self-developed devices, the HP Jet Fusion 3D 3200 and the HP Jet Fusion 3D 4200, in May 2016.

We at 3D Activation are pleased to be able to offer you this MultiJet modeling process, which HP developed on this occasion, as a further 3D printing process, which is why we would like to explain this technology and its advantages to you in more detail at this point.

The HP Multi Jet Fusion at a glance

Source: ©HP

How exactly does HP 3D printing technology work?

Specifically, this 3D printing process is the so-called Multi Jet Fusion Technology.

This process, which is strongly inspired by 2D inkjet printing, is based on printing in a powder bed in a construction space filled with powder, using an inkjet print head and 2 special binder liquids. With these both liquids one that conducts heat and one that acts as a thermal retardant. While the former binds the actual object, the latter is applied to its edges. In a further step, infrared energy sources finally fuse the respective layer above the printing bed.

The two HP 3D printers in comparison

On the outside, the HP Jet Fusion 3D 3200 and 4200 do not differ from each other, but the 4200 offers the faster one with 4500 cm³ per hour print speedwhile the 3200 only achieves 3500 cm³ per hour.

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At the same time, the 4200 also achieves a higher one with up to 70 µm accuracy, compared to 80 to 100 µm with the 3200 series. For components with less accuracy requirements, the 4200 series offers the option of changing the setting to up to 120 µm.

As an additional extra, the 4200 series also offers this Fast cooling on. This further shortens the cooling process and thus achieves a higher throughput.

Both printers have one in common installation size of 406x305x406mm, a box size of 2178x1238x1448mm, and an identical print head with a resolution of 1200 dpi.

Diagram showing HP's MultiJet Fusion technology

MultiJet Fusion Technology Diagram; Source: ©HP

What are the advantages of this additive process?

By using the second heat-inhibiting liquid, Multi Jet Fusion enables sharp edges on the one hand and a good one on the other surface quality.

Compared to SLS printing, the die energy source With Multi Jet Fusion, they also act on the materials for a much longer time, which has a positive effect on the component properties.

Which materials can be processed in this technology?

In line with Selective Laser Sintering (SLS), Multi Jet Fusion is usually based on PA plastics, with HP itself offering PA12 for its two 3D printers. However, these are designed as an open system, so that you have a wide selection of thermoplastics for HP Fusion Jet printing at your disposal.

Would you like to test the possibilities of MultiJet Fusion Printing for yourself? Apply to us! In addition to the printing itself, we also offer you 3D printing training courses in this technology, as of course in other processes.

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