Experimental and Statistical Analysis of the Effect of Process Parameters on Mechanical Properties of 3D Printed Copper Reinforced Composite Samples

Menderes Kam ； Ahmet Ipekçi

《中國機械工程學刊》 43卷3期 (2022/06) Pp. 285-293

摘要

The effects of 3D printing process parameters on mechanical properties of three-dimensional (3D) printing copper reinforced Polylactic acid (PLA) composite samples were analyzed as experimentally and statistically. In this context, tests were carried out with orthogonal array Taguchi method. Control factors were determined by using the Taguchi method for optimum mechanical properties. Two different filament materials (PLA and PLA+20% Copper Reinforced Composite), three different filling structures (Octogram spiral - Os, Archimedian cords - Ac, and 3D Honeycomb - Hc), and three different occupancy rates (10, 30, and 50%) were determined. The results showed that significant improvements in mechanical properties of PLA+20% copper reinforced composite samples were observed. According to the regression equations, optimum mechanical properties were found to be as 29.277MPa at tensile strength, 3.503% at percentage elongation, 3.458kJ/m^2 at izod impact values. Mechanical properties can be improved by using appropriate 3D printing process parameters. Occupancy rate and filling structure show a similar relationship for tensile strength and izod impact values. Hc filling structure can be selected for products which strength property is important. Os filling structure can be preferred for products when elongation and damping properties are required.

關鍵字

3D printing ； copper ； tensile strength ； impact strength ； Taguchi