Defect detection in additive manufactured products with a new photonics procedure: a case study

Amit K. Lal; Andrei K. Dioumaev; Dave Dimas; James D. Trolinger

doi:10.1117/12.2594993

1 August 2021 Defect detection in additive manufactured products with a new photonics procedure: a case study

Amit K. Lal, Andrei K. Dioumaev, Dave Dimas, James D. Trolinger

Proceedings Volume 11817, Applied Optical Metrology IV; 118170I (2021) https://doi.org/10.1117/12.2594993
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Abstract

We describe a new photonics procedure developed for non-destructive testing of additive manufactured (AM) parts and present a case study for inspection of AM brackets to detect and reject parts containing printing defects. This is an update of a previously presented paper of the work in progress to develop an Authentication Sensing System Using Resonance Evaluation Spectroscopy (ASSURES). The principle of operation is based on the concept that a part’s vibration spectrum (set of resonant frequencies) is uniquely determined by its dimensions, material parameters, and interior flaws. The vibration spectrum of a part can be measured remotely with a laser vibrometer, and the presence of defects or a change in material parameters can be inferred from a change in the part’s vibration spectrum (shifts in the resonant frequencies). The spectrum of a part can be measured and compared in a few seconds to a known “good” part, a “good” reference spectrum, or to other parts in the batch.

Conference Presentation

Citation Download Citation

Amit K. Lal, Andrei K. Dioumaev, Dave Dimas, and James D. Trolinger "Defect detection in additive manufactured products with a new photonics procedure: a case study", Proc. SPIE 11817, Applied Optical Metrology IV, 118170I (1 August 2021); https://doi.org/10.1117/12.2594993

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available