Asian Journal of Physics Vol. 30 Nos 10 & 11 (2021) 1547-1572

Micro and nano scale optical metrology for shiny surfaces and difficult to access aircraft engine components – A review
Aswin Haridas and Murukeshan Vadakke Matham


Abstract

Industrial production has always been driven by global competition and the need for efficient market adaptation. A strategic initiative termed Industry 4.0 was recently introduced to cater to these demands, which increased the requirements for both the manufacturing and the metrology sectors. It is predicted that the futuristic aircraft engines would contain large components with microscale features and those having areas that are difficult to access or complex internal channels. While the former requires dedicated measurement systems that challenge the physical limitations of optics, the accessibility of the latter set of components poses additional challenges. This paper provides an overview of the State-of-the-Art literature survey conducted in the related research fields. Various techniques for evaluating surface roughness parameters of rough and shiny surfaces (0.2 μm < Ra < 25 μm) are investigated. The outcome of the literature review is thereafter summarized, which leads to identifying the key research gaps in the domain. © Anita Publications. All rights reserved. © Anita Publications. All rights reserved
Keywords: Surface roughness evaluation, optical imaging, non-destructive optical techniques, Industry 4.0, Factory of the future, Aircraft engine components, Aerospace inspection.


Peer Review Information
Method: Single- anonymous; Screened for Plagiarism? Yes
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