... The results demonstrate that the optimized process parameters significantly enhance material properties and improve inter-layer bonding. The study identifies the critical influence of liquefier temperature and print speed on mechanical performance, while also revealing limitations in traditional optimization...

... damage phenomenon corresponds to the inter-layer bonding of the filament interface at the stress value of 40 MPa. For instance, fatigue lifetime clearly depends on the extruder temperature and the loading frequency. Moreover, when the frequency is 80 Hz, the coupling effect of thermal and mechanical...