Optimization of Mechanical Properties and Surface Characteristics of PLA+ 3D Printing Materials

Table 8

Optimum 3D printing parameters for each output response.

No.	Output response	Target	Optimum parameters (coded)	Optimum parameters (real values)
1	Ultimate tensile strength σu (MPa)	Maximization	A1B3C3D1	205°C, 80 mm/s, 90%, and triangle pattern
2	Young’s modulus of elasticity E (GPa)	Maximization	A1B3C3D1	205°C, 80 mm/s, 90%, and triangle pattern
3	Tensile strain ε (%)	Maximization	A2B2C1D1	215°C, 50 mm/s, 30%, and triangle pattern
4	Surface roughness (Ra)	Minimization	A1B1C1D1	205°C, 20 mm/s, 30%, and triangle pattern