Additive Manufacturing Technologies: An Overview about 3D Printing Methods and Future Prospects

Table 5

Material deposition (MD).

Fused Deposition Modelling
	The wire is rolled around a coil and deposited using the thermal nozzle head that moves in accordance with the plane (XY). The platform gradually descends (Z plane) in accordance with the height of the layer defined [16].
	The layer thickness is: 0.13 - 0.25mm (for ABS); 0.18 - 0.25 mm (for ABSi); 0.18 - 0.25 mm (for PC); 0.25 mm (for PPSU). The maximum model size is 914x610x914 mm.
	The following thermoplastic materials can be used: ABS, ABSi, ABS-M30, ABS-ESD7, PC-ABS, PC-ISO and ULTEM 9085. The properties of ABS are: tensile modulus: 1627 Mpa; tensile strength: 22 Mpa; elongation at rupture: 6%; flexural modulus: 1834 Mpa; bending strength: 41 Mpa; impact strength: 107 J/m; deformation under load temperature: 76-90°C.
	Advantages and disadvantages; Low medium cost equipment, available even in domestic environments. Possibility of eliminating supports by dissolution and obtaining very clean pieces.; Pieces of quality and precision can be obtained but resorting to high cost equipment.