Choose the Right MJF 3D Printing Material
Multi Jet Fusion (MJF) is a pivotal 3D printing technology for various applications, from initial prototyping to full-scale production.
While the manufacturing process is popular for its precision and efficiency, the different materials offer additional flexibility.
This guide will explore the characteristics, cost implications, and primary applications of the preferred materials utilized in MJF 3D printing.
PA 11
Key Features
With an elongation at break reaching 40% (depending on build orientation) PA 11 offers significant mechanical resilience. PA 11 also provides consistent isotropic mechanical properties, which is crucial for functional prototypes and end-use applications. Derived from renewable resources, its biocompatibility certifies it is safe for direct skin contact.
Applications
PA 11 is well-suited for parts requiring high ductility under mechanical stress. Typical applications include functional prototypes and lower limb prosthetics.
PA 12
Key Features
PA 12 proves efficient in the MJF process, balancing cost-effectiveness and powder reusability. Compared to selective laser sintering (SLS), PA 12 in the MJF process offers similar high dimensional accuracy and material options, but with potentially lower costs and faster production times. The material ensures high dimensional accuracy, making it suitable for precise and reliable parts. The material yields parts with solid mechanical properties and chemical resistance, particularly against oils and greases.
Applications
Commonly employed in the production of functional prototypes, PA 12 is also a preferred material for prosthetics and orthotics.
Start Your Manufacturing Project with MakerVerse
MakerVerse is your platform for sourcing industrial parts, providing instant access to a vetted supply chain and a full range of manufacturing technologies. With AI-powered quoting, order management, and fulfillment, MakerVerse helps with everything from initial prototypes to full-scale production.
TPU
Key Features
TPU in the MJF process facilitates the creation of flexible, elastomeric parts, providing high elasticity and excellent shock absorption. Additionally, TPU in the MJF process allows for fine feature resolution, ensuring detailed and accurate parts. This combination yields significant design flexibility.
Applications
TPU has applications in manufacturing robotic grippers, elastic covers, and folding bellows. It is also utilized for energy-absorbing components in safety equipment such as helmets.
Applications for Multi-Jet Fusion
Multi Jet Fusion is a versatile 3D printing technology that excels in a wide array of applications, from rapid prototyping to full-scale production parts and industrial manufacturing. It is ideal for creating functional prototypes and end-use parts with intricate geometries and fine feature resolution. MJF is also highly effective for low-volume production and can serve as a bridge process to injection molding. Industries such as aerospace, automotive, healthcare, and consumer products frequently leverage MJF for its ability to produce high-quality, reliable parts quickly and efficiently.
Post-Processing for MJF Parts
Post-processing is a crucial step in the Multi Jet Fusion process to achieve the desired surface finish and mechanical properties. Initially, the build unit is cooled down, and any unfused powder is vacuumed into a container for future use. The parts then undergo bead blasting to remove any remaining powder material. Depending on the specific requirements, additional post-processing techniques such as vapor smoothing or painting can be applied to further enhance the final product. These steps ensure that the parts not only meet but exceed the desired quality and performance standards.
Start Your MJF Project
If you’re aiming to create functional prototypes with high accuracy and durability, Multi Jet Fusion is an excellent choice. With its rapid printing speeds and superior surface finishes, MJF is ideal for both rapid prototyping and production parts. To kickstart your MJF project, simply upload your CAD files to our online platform. Our team of experts will review and optimize your design for MJF printing, ensuring the best possible outcome. We offer a variety of MJF materials, including nylon and polypropylene, and our state-of-the-art MJF printers guarantee consistent isotropic mechanical properties and fine feature resolution.
With the MakerVerse platform, you receive instant quotes to get your project started quickly. Our engineering experts can also help you select the best-fitting material.
