A Joining Strategy for the Stereolithography-Printed Parts: Thermal and Mechanical Characterization

The versatility of additive manufacturing (AM) in producing components of various sizes and geometries has positioned it as a pivotal subject of exploration across both research and industry. Among the diverse three-dimensional (3D) printing techniques, stereolithography (SLA) has garnered substantial attention. Renowned for its precision and the impeccably smooth finish it imparts to specimens, SLA has found prominence; however, its utility has traditionally been limited to crafting diminutive pieces. Challenges such as cost, fragility, and recycling intricacies further compound its application. This study introduces a joining approach for printed parts to tackle the challenge of creating larger samples using small-scale SLA printers. Furthermore, the proposed method provides a potential solution for repairing damaged samples, fostering sample reutilization and cost-efficiency. The choice of clear resin was pivotal in this regard. Comprehensive mechanical, chemical, and thermophysical analyses were conducted to discern the properties of samples produced via both the conventional and the joining methods. Encouragingly, the results point to the commendable performance of the samples fabricated using this approach, signifying its viability.