Investigating Tensile Strength in SLA 3D Printing Enhancement Through Experimentation and Finite Element Analysis

Siwasit Pitjamit (Department of Industrial Engineering, Faculty of Engineering, Rajamangala University of Technology Lanna Tak)
Norrapon Vichiansan (Multidisciplinary Center, Faculty of Engineering, Chiang Mai University, 50200, Thailand)
Parida Jewpanya (Department of Industrial Engineering, Faculty of Engineering, Rajamangala University of Technology Lanna Tak, 41/1 Paholayothin road , Mai Ngam , Muang, Tak 63000)
Pinit Nuangpirom (Department of Electrical Engineering, Faculty of Engineering, Rajamangala University of Technology Lanna, Chiang Mai, 128 Huay Kaew Road, Muang, Chiang Mai 50300)
Pakpoom Jaichomphu (Department of Industrial Engineering, Faculty of Engineering, Rajamangala University of Technology Lanna Tak, 41/1 Paholayothin road , Mai Ngam , Muang, Tak 63000)
Komgrit Leksakul (Department of Industrial Engineering, Faculty of Engineering, Chiang Mai University, Chiang Mai 50200, Thailand)
Pattarawadee Poolperm (Industrial Engineering Program, School of Engineering, Sripatum University, Phahonythin, Chatuchak, Bangkok,10900, Thailand)

Journal of Applied Engineering and Technological Science (JAETS)
Vol. 6 No. 1 (2024): Journal of Applied Engineering and Technological Science (JAETS)

This study aims to optimize tensile strength in Stereolithography (SLA) 3D printing by investigating the effects of print orientation and layer orientation on mechanical properties. Employing a multilevel factorial design, we systematically analyzed various print andlayer orientations using both experimental and computational methods. The experimental component, performed with an Instron 5566 machine, identified a print orientation of 22.5 degrees and side orientations as optimal, achieving a tensile strength of 72.01 MPa. Computational simulations using ANSYS software supported these findings, showing a close correlation between experimental and simulated results. This research not only advances theoretical understanding of SLA 3D printing processes but also offers practical insights for optimizing tensile strength in manufacturing applications. By integrating experimental and finite element analysis (FEA) results, which predicted a maximum stress of 71.97 MPa under a 686 N load, the study contributes valuable knowledge for enhancing additive manufacturing practices and informs future research on parameter optimization