Experimental analysis of manufacturing parameters’ effect on the flexural properties of wood-PLA composite parts built through FFF

Abstract

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Manufacturing and Application of 3D Printed Photo Fenton Reactors for Wastewater Treatment

“…Printability is better in PLA and ABS than Timberfill ® . The last one is printed with greater difficulty than the previous ones, but by increasing the extruder diameter and decreasing the layer height [ 47 ], the problem is solved. The stiffness in the case of ABS decreased compared to PLA and Timberfill ® [ 48 ].…”

“…According to the literature [ 68 , 69 , 70 , 71 ], the capacity of the prototype reactor was fixed at 0.5 L. A height of 51.0 mm was adopted assuming 50 mm for the optical path. The ratio length/width was set to 3, according to previous studies [ 47 , 69 ] recommending a value in the range 3–6. This led to a length of 250.0 mm and a width of 80.0 mm.…”

Comparative study of the flexural properties of ABS, PLA and a PLA–wood composite manufactured through fused filament fabrication

“…Particularly, PLA and Timberfill will be fed from previous publications, that include the same experimental designs. (Travieso-Rodriguez et al, 2019;Zandi et al, 2020b) 2.2 Specimens The specimens were manufactured according to the guidelines included in the ASTM D6272 standard, which also describes how the four-point bending tests must be conducted. They have a prismatic shape and dimensions of 80x10x4 mm [ Figure 1(A)].…”

“…Timberfill (Zandi et al, 2020b), but also, that when the workpieces work in the plastic zone, the infill should be maximized, as it gains relevance as the specimens are more deformed. Table 6 shows the best parameter values obtained that maximize the rigidity and the bending resistance within the scope of the experiment.…”

“…Adding wood to the PLA makes it possible to obtain pieces with a wooden look, though the properties of the material vary considerably. PLA and Timberfill were respectively studied with the same experimental design by Travieso-Rodriguez et al (2019) and Zandi et al (2020b) as those described for the ABS in this paper. A summary of those results are included in Table 7.…”