Correlation of Mechanical and Rheological Properties of Al-Al2O3-Nylon 6 Composite Feedstock Filament for Rapid Tooling

The Nylon-6-based, reinforced by Al-Al₂O₃, alternative feedstock filaments for fused deposition modelling (FDM) have been successfully developed and characterized by mechanical, thermal, rheological and wear measurements. The process optimization has been carried out for improving the operational efficiency in the feedstock filament development process. However, during feedstock filament development, sometimes it is difficult to select the process strategy within the constrains and to qualitatively evaluate the desired response. Process-specific prioritization and correlation of the properties of alternative feedstock filament have been represented by correlation matrix. In the present research work, an effort has been made to develop a mathematical model for evaluating the perceived value of input parameters for improving the process performance within constrained limits. A computer-based program has been used for mathematical calculations of the specified responses such as peak strength, break strength, melt flow index and tan δ.