3D printing is widely used in product development and prototype manufacturing, and is expected to become universal across various industries with the development of 3D printing-related technologies. However, parts made by Fused Deposition Modeling(FDM) 3D printing using the commonly used stacking manufacturing process, show low tensile strength and hardness. The decreased mechanical properties of these parts limit their use as structural elements. In this study, we aim to investigate the relationship between ultrasonic treatment of PLA parts produced by FDM 3D printing and their mechanical properties. Specifically, we analyze the effects of ultrasonic annealing on the mechanical properties of PLA parts using the tensile test specimen.

• 박지혜(인하공업전문대학) | Park Ji Hye
• 김수현(한국폴리텍대학) | Su-Hyun Kim
• 박지영 (독립연구자) | Ji-Young Park
• 김주형(인하대학교) | KIM JOOHYUNG