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

Abstract

Additive manufacturing, particularly Stereolithography (SLA) 3D printing, has emerged as a promising technology for producing complex and customized components. This study investigates the optimization of tensile strength in SLA 3D printed resin through a comprehensive experimental and computational analysis. Utilizing a multilevel factorial design approach, the study systematically evaluates the influence of print orientation and layer orientation on tensile strength. Experimental testing, conducted using an Instron 5566 machine, reveals that a print orientation of 22.5 degrees and side orientations yield the highest tensile strength, reaching 72.01 MPa. Computational simulations, performed using ANSYS software, corroborate experimental findings, demonstrating promising correlations between experimental and computational results. Moreover, the study explores the implications of print orientation on mechanical properties and offers insights into parameter optimization for enhancing mechanical performance in additive manufacturing. This research contributes to advancing the understanding of additive manufacturing processes and provides practical guidance for optimizing tensile strength in SLA 3D printing applications. Additionally, finite element analysis (FEA) predicts a maximum stress of 71.97 MPa under a tension load of 686 N, further validating the experimental and computational findings.

Keywords

• SLA 3D Printing
• Tensile Strength
• Printing Process Parameters
• Finite Element Analysis