MJF - Multi Jet Fusion
Speed is a hallmark of MJF, enabling rapid production without compromising on precision. With its ability to print multiple parts simultaneously, MJF optimizes efficiency, delivering shorter lead times and greater productivity. This transformative technology empowers businesses to streamline their manufacturing processes, accelerate innovation, and bring products to market fast.
For parts with high level of detail and fast production.
What is MJF - Multi Jet Fusion?
The MJF technology, invented by HP, is a relative newcomer when it comes to 3D printing. Despite its freshness, the technology is highly appreciated and used by many industries for industrial-scale productions. Today, it’s adopted by a wide range of industries such as automotive, medical and consumer goods.
MJF has proven to be a reliable and consistent part fabrication technology with fast printing speed and production cycle. MJF offers a finer level of detail and better resolution than corresponding methods using thermoplastics.
Optimizes efficiency & boosts productivity
By combining good quality, durability, and intricate design details in a single process, the relatively new technology has become highly appreciated and used by many industries for industrial-scale productions.
Using advanced materials and intelligent design, MJF deposits a fusing agent and detailing agent layer by layer, while applying thermal energy to create solid, fully functional objects. The result is superior part quality, high isotropy, and good mechanical properties.
With its speed and ability to print multiple parts simultaneously, MJF optimizes efficiency, shortens lead times, and boosts productivity.
FAQs
- Good part quality: Multi Jet Fusion delivers very good part quality with high precision and fine details.
- High productivity: The technology enables the simultaneous printing of multiple parts, leading to faster production and increased efficiency.
- Enhanced mechanical properties: The process results in objects with excellent mechanical strength and isotropy, making them suitable for functional use.
- Complex geometries and customization: Multi Jet Fusion empowers the creation of intricate designs and complex geometries, allowing for highly customized and innovative products.
Just like SLS technology, MJF lays down material in powder form with a thickness of 0.08 mm. But there the similarity ends. In the next steps of the process, two different liquid agents are applied via the print head with a resolution of 1200 dpi. A “fusing agent” is applied where the material is to be fused and a “detailing agent” is applied on areas which are not intended for fusion.
Then energy in the form of heat is added, which makes the powder fuse where the fusing agent has been applied. The process is subsequently repeated with a new layer of powder. Once the process is complete, the parts are removed from the build surface, brushed down and blown clean of powder.
Multi Jet Fusion is a good choice when you seek superior part quality, high productivity, and versatility in materials. Its ability to produce complex geometries and intricate designs sets it apart from other 3D printing technologies. Whether you're in automotive, aerospace, consumer goods, or healthcare industries, Multi Jet Fusion offers a transformative solution for efficient production, customization, and rapid innovation.
- Flat top surfaces can sag slightly.
- Grainy surface
- Risk of warping on large flat areas.
- Uneven wall thickness can affect accuracy in the form of non-linear shrinkage.
- For surfaces with an angle of less than 20° to the X/Y plane, distortion due to the layer effect (stepping) can be marked. The steeper the angle, the better the surfaces.
- To obtain a press fit, ensure a gap of 0.1 mm (average particle size X2). This fit will be slightly looser on wear (particles work loose over time).
- To obtain moveable parts printed in a workpiece, ensure a gap of 0.4 mm in X/Y/Z. It is also important that loose powder in the gap can be removed.
- Working hinges can be easily achieved in polypropylene. However, it is important that one takes care when first opening the item to which they are attached, so as to ensure longer service life of the hinge. Hinges can also be made from PA2200, but their service life tends to be shorter.
