RSM for the Optimization of Selective Laser Melting Process Parameters for Manufacturing Initial Layers of Horizontal Overhang Structures

Author

Prince Yaw Asamani, The University of Texas Rio Grande Valley

Date of Award

5-2024

Document Type

Thesis

Degree Name

Master of Science in Engineering (MSE)

Department

Manufacturing Engineering

First Advisor

Benjamin Peters

Second Advisor

Jianzhi Li

Third Advisor

Douglas Timmer

Abstract

While prevalent in 3D printed objects, overhang features are difficult to print with selective laser melting due to the limitation of a purely vertical laser. To address this issue, overhang features are typically built on temporary supports, which are removed following printing. However, this results in wasted material and longer production time. Several authors have studied printing overhangs without support structures. However, there has not been a systematic approach to studying the effect of multiple process parameters on the quality of a printed overhang. This thesis investigates the effect of laser power, scanning speed, and hatch distance on the surface area of the initial layers of a horizontal overhang structure. By optimizing the surface area of the initial layers, we create a solid foundation upon which subsequent layers can be successfully built.

Comments

Copyright 2024 Prince Yaw Asamani.

https://go.openathens.net/redirector/utrgv.edu?url=https://www.proquest.com/pqdtglobal1/dissertations-theses/rsm-optimization-selective-laser-melting-process/docview/3085280084/sem-2?accountid=7119

Recommended Citation

Asamani, Prince Yaw, "RSM for the Optimization of Selective Laser Melting Process Parameters for Manufacturing Initial Layers of Horizontal Overhang Structures" (2024). Theses and Dissertations. 1503.
https://scholarworks.utrgv.edu/etd/1503