Investigations for obtaining desired strength of Nylon6 and Fe powder-based composite wire for FDM feedstock filament

Abstract

In the present work, an effort has been made for modelling the peak strength of Nylon6-Fe powder composite-based feedstock filament (wire) for fused deposition modelling (FDM) process. The developed filament has been used to prepare functional prototypes with ferromagnetic characteristics. The methodology involves the use of historical data approach of response surface methodology (RSM) to study the effect of input process parameters (namely: barrel temperature, die temperature, screw speed, speed of the winding machine of single screw extruder and melt flow index of composite material as rheological property) on peak strength of the filament developed. The model for prediction of peak strength of Nylon6-Fe powder composite filament has been counter verified by actual experimentation. Further, the results of the study also highlights that Nylon6-Fe composite-based FDM filament enabled successful run of this material without any change in hardware/software of the commercial FDM setup.

Response Surface Methodology Using Observational Data: A Systematic Literature Review

“…For details on performing HDD, refer to the software manual guide from [31] based on a case study by [32]. Both [6,8] explicitly mentioned and applied HDD, where previous, un-designed, and experimental or observational data were used as inputs for RSM analysis to optimize energy consumption and plastic strength.…”

“…Several pieces of research on chemical engineering and food production [6,7] have demonstrated that observational-data-based RSM (RSM-OD) provided a fitted mathematical model to find an optimal factor setting. Other research used the observed data from a running process or equipment as the input for RSM-OD, as shown in the work of [8] for steel production and [9] with pollutant removal processes.…”

Studies on 3D Printability of Novel Impact Modified Nylon 6: Experimental Investigations and Performance Evaluation

“…[ 16 ] has utilized nylon 6 powders to produce tissue engineering scaffolds using SLS‐based 3D printing technique to observe the biocompatibility and in vivo implantation. Garg and Singh [ 17 ] observed the effect of processing parameters, such as barrel temperature, screw speed, and die temperature of extruder with the help of response surface methodology and further used FDM‐based technology to print nylon 6 with excessive amount of Fe (50%, 55%, and 60 wt%). Richardson et al.…”