PSI - Issue 47

Hachimi Taoufik et al. / Procedia Structural Integrity 47 (2023) 711 – 722 Author name / Structural Integrity Procedia 00 (2019) 000 – 000

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The CAD file was converted to a standard additive Manufacturing STL format. The file is then digitally sliced into layers with Flashprint, which was used to generate the G-Code since it allows the modification of the infill angle for each layer, and its setting up of the machine, as shown in Table 1.

Table 1. Printing Setting. Parameter

Value

Material

ABS

Infill density (%)

100 235

Extruder temperature (°C) Bed temperature (°C) Layer thickness (mm) Printing Speed (mm/s) Layer orientation (°)

80

0.2

60

45/-45

The second stage requires the transfer of the G-code file to the machine. So, the device builds the model layer by layer. During printing, the used material forms filaments disentangled from a coil before being fed into an extrusion nozzle. The nozzle extrudes molten filaments by melting them. 2.3. Tensile test For Standard specimens, ISO 527 type 2(2012) samples of a thickness of 0.2mm (one layer) were made on ABS material with different orientations. A tensile test was performed using the MTS machine Model 43 with a cell load of 30kN, and crosshead speed was fixed at 1 mm/min according to the standard. Its results are given in Fig. 3.

Fig. 3. Tensile curves of three samples ISO 527 type 2 of 0.2mm thickness with different filament orientations.

A tensile test was made for SENT simple edge notched tension with 0.4 thickness (two layers) with the same test condition. Its results are shown in Fig. 4.