Table 6.
Research on annealing post-processing.
| Authors | Materials | Methods | Dimensions & Testing Standards | Outcomes | |||
|---|---|---|---|---|---|---|---|
| Base | Addition | Tensile | Flexural | Compressive | |||
| Jo et al. (2018) [81] | PLA | - | Variation of annealing time and temperature. Variation of applied pressure. | ASTM D638 | - | - | UTS of specimens that were reheated at 160 °C for 30s increased by 5% compared to non-reheated samples. A combination of a reheating process for 120 s and an applied pressure of 19 N resulted in the improvement of UTS by 10.2% more than the reheating process alone. |
| Behzadna-sab et al. (2019) [82] | PLA | - | Variation of annealing time and temperature. | ISO 527 | - | - | UTS decreased with the increase of annealing temperature or time, with no significant change in the modulus. This is mainly due to the degradation process of PLA molecules. |