What Is MJF 3D Printing?

Multi Jet Fusion (MJF) is a 3D printing process that uses heat, pressure, and powdered materials to create complex parts and products. The procedure comprises utilizing a CAD file to generate a three-dimensional prototype, which is later transferred to the MJF printer.

The printer sprays a layer of powdered material onto a build platform and uses heat and pressure to fuse the particles together, creating a solid layer.  The technology enables the production of parts with high resolution, excellent surface finish, and mechanical properties comparable to injection molded parts.

The final product is achieved through the repetition of this process layer by layer. MJF 3D printing services are commonly used in industrial applications to manufacture functional prototypes and end-use parts due to their ability to deliver parts with high tensile strength, fine feature resolution, and well-defined mechanical properties.

At RA Global Tech Solutions, we're committed to leveraging cutting-edge technologies to drive innovation and growth. One such technology that's revolutionizing the manufacturing landscape is Multi-Jet Fusion (MJF) 3D printing.

How Does MJT Printing Works?

1. Powder Distribution: A thin layer of powdered material is spread evenly across the build platform.

2. Agent Application: A specialized agent (ink) is selectively applied to the powder layer, defining the shape of the part.

3. Energy Application: Energy is applied to the powder layer, causing the agent to fuse the particles together.

4. Layer Formation: The process is repeated, building layer by layer, until the final part is formed.

5. Post-Processing: The finished part is removed from the build platform and may undergo additional processing, such as cleaning or surface finishing.

Types of Materials Used in MJF Printing

1. PA 12 Smooth Light Grey: PA 12 (polyamide 12) is a commonly used engineering thermoplastic that offers high strength, stiffness, and durability. The smooth light grey variant of PA 12 is perfect for producing parts that require a high level of detail and a smooth surface finish. The material is also resistant to chemicals, impact, and fatigue.

2. Ultrasint TPU 90A-01: TPU, a type of thermoplastic polyurethane, possesses exceptional characteristics such as flexibility, elasticity, and impressive resistance to impacts, tearing, and abrasions. The Ultrasint TPU 90A-01 Variant is a pure grey color that is perfect for producing parts that require high flexibility and durability, such as phone cases or shoe soles.

MJF Capabilities

1. Large Build Volume: 500 mm x 500 mm x 500 mm

2. Fast Turnaround Time: Reducing time-to-market for products

3. High Dimensional Accuracy: ± 0.2% with a lower limit of ± 0.127 mm

4. High-Resolution Printing: 50-100 μm

Design Guidelines for MJF

1. Wall Thickness: Minimum wall thickness of 0.5-1 mm is recommended to ensure structural integrity

2. Feature Size: Minimum feature size of 0.5-1 mm is recommended to ensure accuracy and detail

3. Hole Size: Minimum hole size of 1-2 mm is recommended, depending on the application and required accuracy

4. Radius and Fillets: Adding radii and fillets can improve part strength and reduce stress concentrations

5. Draft Angle: A draft angle of 1-2° is recommended to facilitate part removal from the powder bed

Benefits of MJF 3D Printing

1. Speed: MJF 3D printing is significantly faster than other powder-based technologies, making it ideal for high-volume production.

2. Accuracy: MJF parts exhibit high dimensional accuracy and surface finish, reducing post-processing requirements.

3. Material Properties: MJF parts demonstrate excellent mechanical properties, including strength, durability, and thermal resistance.

4. Complex Geometries: MJF enables the creation of intricate designs and complex geometries, allowing for innovative product development.

Applications of MJF 3D Printing

1. Industrial Parts: MJF is suitable for producing functional parts, such as gears, bearings, and other mechanical components.

2. Product Prototyping: Rapid prototyping with MJF enables designers and engineers to test and iterate on product designs.

3. Production Parts: MJF's high production speed and accuracy make it an attractive option for end-use parts.

RA Global stands out from the competition in a few key ways. Here are just a few reasons to choose us for your next MJF project:

1. Save Time: Our MJF printers are incredibly fast, allowing us to create complex parts and products in a matter of hours rather than days or weeks. By utilizing this approach, you can speed up the process of bringing your products to the market, which will grant you an advantageous position within your industry.

2. High-Performance Materials: Our MJF printing process employs premium materials to guarantee the durability, strength, and longevity of your parts and products. This ensures that your products will perform exceptionally even under the most extreme circumstances.

3. Quality Assurance & No Limitation: At RA Global, we prioritize quality, thus implementing a meticulous quality assurance procedure to guarantee that all our components and goods satisfy our elevated criteria. Our MJF printers can create parts and products with incredible precision and detail, meaning there are no limitations to what we can create.

4. Cost-Save: Our MJF printing services are incredibly cost-effective, allowing you to create complex parts and products without breaking the bank. You can bring your products to the market quicker with our prompt turnaround times, resulting in long-term cost savings.

MJF 3D printing offers a range of benefits, from rapid production to complex geometries. At RA Global Tech Solutions, we're committed to harnessing the power of MJF 3D printing to drive innovation and growth. Contact us today to learn more about how MJF 3D printing can benefit your business.

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