Topography of Rough Dielectric Surfaces Utilizing Evanescent Illumination

Sciammarella, Federico M.; Sciammarella, Cesar A.; Lamberti, Luciano

doi:10.1007/978-3-319-06986-9_3

Cited by 1 publication

(4 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The basic aspects of the theory and the application of high precision optical contouring methods used in this paper are contained in Sciammarella et al (2005), Sciammarella et al (2008a), Sciammarella et al (2008b), Sciammarella et al (2010) and Sciammarella et al (2015). This paper introduces new developments that are particularly suitable for the task of determining the volume of prismatic depositions with irregular contours.…”

Section: Methodology For High-precision Optical Contouring Of Am Componentsmentioning

confidence: 99%

“…(2015). In some cases, sub-micron accuracy was obtained to determine the surface roughness of metallic surfaces (Sciammarella et al, 2015). A very important procedural aspect that made this practical solution possible was the development of a new unwrapping technique that allows to extract the depth information by a self-adjusting algorithm.…”

Section: Computation Of the Volume Of The Lateral Facesmentioning

confidence: 99%

Section: Computation Of the Volume Of The Lateral Facesmentioning

confidence: 99%

“…The theoretical and practical details of actual procedures to obtain values of the roughness of surfaces are given in references Sciammarella et al (2010) and Sciammarella et al (2015). In some cases, sub-micron accuracy was obtained to determine the surface roughness of metallic surfaces (Sciammarella et al , 2015). A very important procedural aspect that made this practical solution possible was the development of a new unwrapping technique that allows to extract the depth information by a self-adjusting algorithm.…”

Section: Computation Of the Volume Of The Lateral Facesmentioning

confidence: 99%

See 3 more Smart Citations

An optical approach to accurately determine surface finish for additive manufacturing

Sciammarella

2018

RPJ

View full text Add to dashboard Cite

Purpose The paper aims to highlight the importance of having an optical method that can accurately measure the surface finish of 3D printed parts and the influence this has on the total volume of the build. Design/methodology/approach The paper describes the application of digital moiré to the determination of the surface finish of 3D printed parts. Findings This study shows that surface roughness plays an important role in the volumetric analysis. There was an increase of 7 per cent from the total volume of the original CAD drawing; in total, there was 19 per cent more material deposited. Research limitations/implications This methodology provides a robust tool for future research in the area of geometrical verification and optimization in addition to the potential use for residual stress determination. Practical implications This study shows that process optimization can be carried out more efficiently, and it is possible to determine the efficiency of an AM process by directly correlating the processing parameters and accurately comparing the prescribed CAD dimensions/volume to that of the as built part. Social implications By reducing the amount of waste through process optimization, this leads to a reduced consumption of energy which can have a major impact on the environment. Originality/value This paper fulfills the need for high accuracy volumetric measurement of 3D printed components.

show abstract