Keywords and Phrases
Modal analysis as non-destructive testing technique for additively manufactured 304L stainless steel parts
“Non-Destructive Testing (NDT) methods for Additively Manufactured (AM) parts is an ongoing field of research in the additive community due to its ability to determine if a part can be deemed viable for field usage. This study presents modal analysis as a NDT method for AM parts. For production builds that have multiple copies of the same part, a correcting technique can be used such that the frequencies of the parts under test can be reliably compared against each other, which saves both time and money compared to other traditional NDT methods. This study was able to develop a novel method for quantifying the processing force that develops over the melt pool during the Selective Laser Melting (SLM) process. The processing force was found to be dependent on the laser power, Pulse Repetition Frequency (PRF), and scanning speed, which are the primary processing parameters of the SLM process. Modal analysis is shown to be a promising NDT method and future work will be done to look at an algorithmic framework for analyzing an arbitrary part with modal analysis”--Abstract, page iv.
Landers, Robert G.
Kinzel, Edward C.
Bristow, Douglas A.
Mechanical and Aerospace Engineering
M.S. in Mechanical Engineering
Missouri University of Science and Technology
Journal article titles appearing in thesis/dissertation
- Effects of identical parts on a common build plate on the modal analysis of SLM created metal
- Frequency domain measurements of melt pool recoil force using modal analysis
xii, 59 pages
© 2020 Tristan Nicholas Cullom, All rights reserved.
Thesis - Open Access
Cullom, Tristan N., "Modal analysis as non-destructive testing technique for additively manufactured 304L stainless steel parts" (2020). Masters Theses. 8073.