PSI - Issue 68

A. Jiménez et al. / Procedia Structural Integrity 68 (2025) 603–609 Adriano Jiménez et al. / Structural Integrity Procedia 00 (2025) 000–000

605

3

also employed to create a laminator or "slicer" that converts the designed prototypes into printing paths. The Compas Fab ecosystem aids in calculating commands based on these paths and in transmitting them to the robotic arm (Chen et al., 2023). Three batches of test pieces have been manufactured, its printing materials and parameters used are defined in Table 2. Each of those batches contains 3 different prismatic test pieces (40x40x160mm), for evaluate the three different loading planes (XY, XZ, YZ), they have been duplicated and flipped 90º around their longitudinal axes to confirm the materials behaves in a symmetric manner when evaluated though 3 point bending test. The three compression test pieces (40x40x40mm) were obtained from the halves resulting of the flexural tests, and will serve to evaluate the three orthogonal directions (X,Y,Z).

Table 2. Test piece batches

Feedrate (mm 3 /s)

Batch

Printing material White Clay (A)

Nozzle diameter (mm)

Layer height (mm)

Printing speed (mm)

A-6 B-6 B-8

6 6 8

2.1 2.1 2.4

35 30 30

424 308 550

Red Clay (B) Red Clay (B)

Fig. 1. Three different types of 3D-printed test pieces were used. The surfaces were flattened before sintering for mechanical tests

Fig.2. One batch of test pieces