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<p>3D printing with the help of fused deposition (FDM) is a widely used additive manufacturing technique to manufacture complex geometry with high accuracy. 3D printed parts are nowadays used in real-life applications not restricted only to prototyping. The present work is a step toward the applications in which the 3D printed parts are being used for assembly along with the use of fasteners such as bolts and rivets. The work aims to find the maximum bearing load capacity and failure mode for 3D printed parts with different geometric ratios and machine parameters. The parts were modeled and printed with different geometric ratios, i.e., hole diameter-to-width (D/W) ratio and hole diameter-to-edge length ratio (D/E), and different machine parameters, i.e., raster angles and infill densities. The Taguchi method was used to develop the experimental plan, and finite element analysis was used to analyze the specimens. It was found that with the increase in D/W ratio, the failure mode changes from tensile to bearing failure. The failure mode changes from bearing to tensile failure if the D/E ratio is reduced, but its contribution is less as compared to that of the D/W ratio. It was also found that the raster angle and infill density had the highest contribution to the bearing load-carrying capacity of the printed specimens.</p>

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Investigations on the Effect of Different Geometric and Printing Parameters on the Strength of Pin Joint Prepared from 3D Printed PLA Material

  • 期刊论文

  • 发表日期：

    2026年1月26日

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  • Manjeet Singh,
  • Akash Gupta,
  • Pushpam Kumar,
  • Jaswinder Singh Saini

摘要

3D printing with the help of fused deposition (FDM) is a widely used additive manufacturing technique to manufacture complex geometry with high accuracy. 3D printed parts are nowadays used in real-life applications not restricted only to prototyping. The present work is a step toward the applications in which the 3D printed parts are being used for assembly along with the use of fasteners such as bolts and rivets. The work aims to find the maximum bearing load capacity and failure mode for 3D printed parts with different geometric ratios and machine parameters. The parts were modeled and printed with different geometric ratios, i.e., hole diameter-to-width (D/W) ratio and hole diameter-to-edge length ratio (D/E), and different machine parameters, i.e., raster angles and infill densities. The Taguchi method was used to develop the experimental plan, and finite element analysis was used to analyze the specimens. It was found that with the increase in D/W ratio, the failure mode changes from tensile to bearing failure. The failure mode changes from bearing to tensile failure if the D/E ratio is reduced, but its contribution is less as compared to that of the D/W ratio. It was also found that the raster angle and infill density had the highest contribution to the bearing load-carrying capacity of the printed specimens.