Evaluation of mechanical and thermal properties of UV-curable resin-SiC composites for enhanced performance in abrasive applications

Abstract

This research investigates the mechanical and thermal properties of a novel composite material designed for applications in the finishing industry, particularly in abrasive tools such as grinding wheels. The composite comprises a UV-curable ABS-like resin, silicon carbide (SiC) grains with an average particle size of 150 μm, and fumed silica utilized as an anti-settling agent. The choice of ABS-like resin is motivated by its elasticity, which enhances impact resistance while minimizing thermal effects during usage. Fabrication of this composite material was achieved through stereolithography-based 3D printing technology, allowing for precise control over material properties and geometrical configurations.

Standard test specimens were produced and subjected to a comprehensive series of evaluations, including tensile strength, compression, Charpy impact, hardness, Differential Scanning Calorimetry (DSC), Heat Deflection Temperature (HDT), and wear tests, following ASTM standards. The results from these tests were analyzed to gain insight into the performance characteristics and applicability of this novel composite in demanding environments.

To further explore the capabilities of the discussed composite, two grinding tool samples were designed and manufactured. A comparison of grinding performance between the T100 tool, a structured tool, and the Simple Tool, a non-structured tool has been discussed. The analysis focuses on their efficiency when grinding Aluminum T6 and MO40 steel, examining critical performance parameters such as cutting forces, surface roughness, tool wear, force-damping behavior, and the impact of the elastic ABS-like resin used in these tools. This study provides valuable information for the implementation of such composites in the finishing industry, highlighting their potential advantages in abrasive applications.