At XC Machining, we utilize state-of-the-art MJF printers to produce high-precision, durable parts with remarkable speed. Our MJF process follows several key steps to ensure the highest quality output:
Preparation and Setup
The process begins by preparing a 3D model of the part, which is typically designed using CAD (Computer-Aided Design) software. Afterward, the model is sliced into thin layers, which are sent to the MJF printer. This digital model guides the deposition of the binding agents and fusion steps during the printing process.
Powder Bed
A thin layer of fine powder, often nylon-based, is spread across the build platform of the MJF printer. The powder acts as both a medium for printing and a support structure, enabling the construction of intricate geometries without the need for additional support structures.
Binding Agent Deposition
The printhead moves across the powder bed, spraying a liquid binding agent onto the powder. This agent acts as the “glue” that holds the powder particles together and forms the basis of the part. The printhead also sprays different materials to give the part different properties, such as enhanced flexibility, strength, or conductivity.
Infrared Heating
After the binding agent is deposited, the printer’s infrared light system selectively heats the powder. This step fuses the powder particles together, creating solid layers that gradually build up into the final part.
Cooling and Post-Processing
After each layer is fused, the printer’s build platform is lowered, and another layer of powder is spread. This process is repeated until the part is complete. Once the printing is finished, the part is allowed to cool down before being carefully removed from the powder bed.