Tribological Properties of PolyJet-Printed Digital Materials under Different Loading Conditions

PolyJet printing, a form of material jetting additive manufacturing, enables the fabrication of multi-material digital composites with tailored mechanical and surface properties. Understanding the tribological behavior of these digital materials under varying loading conditions is crucial for their application in functional and structural components. This study investigates the friction and wear characteristics of PolyJet-printed digital materials under different normal loads and sliding speeds. Experimental analyses were conducted using a pin-on-disc tribometer to evaluate wear rates, coefficient of friction, and material degradation mechanisms. The results indicate a significant dependence of tribological performance on loading conditions, material composition, and surface morphology. The study provides insights into optimizing digital material formulations for enhanced durability and wear resistance in practical applications.