Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/88667
Title: Flexible optical fiber probe for surface roughness evaluation of internal channels in additively manufactured components
Authors: Subbarao, Guru Prasad Arudi
Haridas, Aswin
Patinharekandy, Prabhathan
Kapur, Pulkit
Chan, Kelvin
Matham, Murukeshan Vadakke
Keywords: Laser Speckle
Additive Manufacturing
DRNTU::Engineering::Mechanical engineering::Prototyping
Issue Date: 2018
Source: Subbarao, G. P. A., Haridas, A., Patinharekandy, P., Kapur, P., Chan, K., & Matham, M. V. (2018). Flexible optical fiber probe for surface roughness evaluation of internal channels in additively manufactured components. Proceedings of the 3rd International Conference on Progress in Additive Manufacturing (Pro-AM 2018), 601-606. doi:10.25341/D4NK5F
Abstract: Recent developments in Additive Manufacturing (AM) has revolutionized the production capabilities of multitudes of aerospace components. However, being a stochastic process, there is minimal control over the surface quality and thus require adequate quality checks before implementation. In this context, this paper investigates a flexible optical fiber probe and speckle correlation measurements to quantitatively estimate the average surface roughness, Ra, of areas within internal channels. Details on probe design and preliminary measurement results on a comparator plate with Ra values varying between 6.3 μm and 25 μm are presented. The measurements are compared and validated using the Keyence optical tester (VR-3000).
URI: https://hdl.handle.net/10356/88667
http://hdl.handle.net/10220/45919
DOI: 10.25341/D4NK5F
Rights: © 2018 Nanyang Technological University. Published by Nanyang Technological University, Singapore.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:Pro-AM Conference Papers

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