3D printing for production with MJF
Materials such as HP PA 12 Nylon and HP PA11 Nylon are starting to prove their worth in real world applications; and designers and engineers are starting to understand the specifics of designing for the additive manufacturing process. As a result, we are now seeing a sharp uptick in acceptance and application for 3D printing for production. In this article, we explore the benefits of 3D printing for production with HP’s Multi Jet Fusion, or MJF, technologies.
The obvious benefits additive manufacturing include production on demand, reduced weight, reduced wastage, reduced costs through the eradication of tooling, and reduced manufacturing time. But, the most significant contributor to this uptick is validity of the engineering-grade materials used. For HP’s Multi Jet Fusion (MJF), the ‘big brother’ to the ever-popular SLS, two stand out materials are available at Paragon Rapid Technologies.
HP PA 12 Nylon’s attributes include superb mechanical properties, durability, strength, excellent density, heat resistance, impact resistance and low porosity. Of course, the HP PA12 is also ideal for producing complex parts with thinner features thanks to the fact that there is no need for support structures.
HP PA Nylon 11 is HP’s contribution to sustainable plastics. Created from the castor oil plant, a wholly sustainable source of raw material, the PA 11 possesses almost all the attributes of PA12. It is ductile, has a slightly lower heat resistance but a greater impact strength, and is slightly more flexible after post processing.
In fact, when it comes to Net Zero considerations, polymer additive manufacturing with MJF certainly ticks the greater sustainability box. At the printing point, powder from both PA Nylons can be recycled. Both are also biocompatible and UV-resistant in accordance with ISO standards.
MJF prints fast. Without post processing in the form of shot peening and dyeing, parts can be ready for dispatch within two days – ideal for on-demand production scheduling.