Additive manufacturing method in which melted plastic granules are deposited on a bed layer by layer to form the 3D-object. Beskrivning The process The product is formed on a mobile building platform [1]. Plastic granules are supplied to a vertical extrusion screw that rotates, heats and presses the granules down to a molten homogeneous plastic mass. The mass is pressed through a replaceable nozzle [4], where the flow is controlled by the diameter and shape of the passage. Larger throughput gives higher building speed but lower surface finish and vice versa. The plastic mass is deposited through the nozzle at constant speed and a cross-section of the CAD model is built up. After each layer, the building platform is lowered [5] and the next layer is added. If necessary, a supporting structure is also printed [6] to allow overhangs. Post-processing in the form of removal of these support structures is required. Extrusion Plastic forming process where a plastic melt is pressed through a die to create an axially symmetric profile. Read more Fused Granular Fabrication, FGF Process photos Process films Product examples English translation unavailable for .English translation unavailable for .English translation unavailable for . Advantages and disadvantages In comparison with alternative methods High production capacity Next to all polymers can be used High material usage rate Eco-friendly Faster for large products Good for evaluating new materials and material mixtures High durability in manufacturing production Generell teknisk data Only for logged in users. Become member or login.
