Evaluating the tribological properties of as-built polyamide 6 + 30 % glass fiber polymer printed by fused deposition modelling via varying the infill density

Abstract

This Investigation focuses on the effect of tribological properties of 30% of Glass Fiber reinforced Polyamide 6 composites, fabricated by fused deposition modeling by varying different infill densities,(60%,80%,100%).To validate the result of tribological property, the wear rate was calculated and the responses were studied for each infill density percentage of the as-built specimen under 5,10, 15 N load conditions and 500 m sliding distance and at velocities of 1 m/s, 3 m/s, and 5 m/s respectively. From the investigation, it was revealed that increasing the infill density percentage from 60% to 100% of the as-built samples of PA6 + 30% GF led to a decrement in the wear rate. This was attributed due to an increase in bonding strength between the printed layers and an increase in load distribution between the printed layers. The best choice of PA6 + 30%GF with 100% printed samples will be a viable one in automotive and aerospace sliding parts for replacing critical parts.