A 3D plastic molding machine is used to create 3 dimensional plastic parts using additive manufacturing technology. Here are some key details about 3D plastic molding machines:
- They build up parts layer-by-layer from plastic material using a computer-controlled process. This is unlike traditional molding that uses molds and dies.
- The most common technologies used are Fused Deposition Modeling (FDM) and Stereolithography (SLA).
- In FDM, plastic filament is melted and extruded out through a nozzle that deposits it onto the build platform in layers. Popular plastics are ABS, PLA, nylon etc.
- In SLA, a UV laser cures and solidifies liquid plastic resin layer-by-layer on the build platform to create the object. Resins include photopolymers and epoxy resins.
- The plastic layers are laid down in thin layers ranging from 0.1mm up to 0.5mm thick. Hundreds of layers make up the final part.
- Supports are built where required which are later removed to reveal the finished plastic part.
- 3D printing allows for complex geometries and custom designs that are not possible through traditional molding.
- Resolution, accuracy and surface finish capabilities continue to improve on these machines.
- Applications range from prototyping to production of end-use parts for aerospace, automotive, medical and consumer industries.
- Post-processing like sanding and polishing may be required on the 3D printed plastic parts.In summary, 3D plastic molding machines allow on-demand production of complex, custom plastic components without the need for molds and dies. The additive process offers more design freedom.
