17th CIRP Conference on Intelligent Computation in Manufacturing Engineering (CIRP ICME ‘23)  08/2024

In-situ acoustic signals correlation of process parameters in laser powder bed fusion

Authors:

Levent Subasi, Soner Oren, Gokhan Dursun, Cagdas Sen, Akin Orhangul

Contents:

• Laser powder bed fusion (LPBF) is a metal additive manufacturing technique in which repeatability is a major concern in quality results.
•          An optical microphone was used to monitor the acoustic emission during the LPBF process.
•          The analysis showed a strong correlation between the acoustic signals and the process parameters.
•         This methodology allows for the evaluation of process flaws and overall quality.

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