PSI - Issue 19

Aissa Ouballouch et al. / Procedia Structural Integrity 19 (2019) 433–441 Aissa Ouballouch et al./ Structural Integrity Procedia 00 (2019) 000 – 000

435

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Fig. 1. 3D Volumic 3D printer

To study the influence of layer thickness (LT), print speed (PS) and extrusion temperature (ET) on the mechanical performance, dimensional accuracy and total cost, a number of 3 pieces were produced for each sample. The values of processing parameters are listed in Table 1 while the exact processing parameters are tabulated in Table 2. And Figure 2 illustrates the dimensions used to create the studied specimens in accordance with standard ISO 527.

Table 1. Values of processing parameters

Parameter

Values for GRPA

Values for KRPA 245°C, 255°C, 265°C

Extrusion temperature

245 °C, 255 °C, 265°C

Print speed

50 mm/s, 60 mm/s, 70 mm/s 0.1 mm, 0.15 mm, 0.2 mm

50 mm/s, 60 mm/s, 70 mm/s 0.1 mm, 0.15 mm, 0.2 mm

Layer thickness

Table 2. Sample processing parameters specification

Sample

Material

Extrusion temperature

Print speed

Layer thickness

1 2 3 4 5 6 7 1 2 3 4 5 6 7

GRPA with +-45° orientation

245°C 245°C 245°C 245°C 245°C 255°C 265°C 245°C 245°C 245°C 245°C 245°C 255°C 265°C

50 mm/s 60 mm/s 70 mm/s 50 mm/s 50 mm/s 50 mm/s 50 mm/s 50 mm/s 60 mm/s 70 mm/s 50 mm/s 50 mm/s 50 mm/s 50 mm/s

0.2 mm 0.2 mm 0.2 mm 0.1 mm 0.15 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.2 mm 0.1 mm 0.15 mm 0.2 mm 0.2 mm

KRPA with +-45° orientation