A Preliminary Investigation on Surface Roughness Assessement of Complex Additive Manufactured Parts Scanned by X-ray Computed Tomography

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Additive manufacturing technologies have many advantages over conventional subtractive counterparts. X-CT is currently the unique way to measure both the internal and external geometries of complex AM products, which is not possible using either the tactile or optical measurement methods. However one of the barriers that restrict X-CT usage from being useful for surface texture assessment is that X-CT generated data structure is not compatiable with the standard procedures of roughness characterization which requires uniform sampled data and also takes the prerequite that measured surface is basically planar. It is proposed to use the Gaussian filter based on the linear diffusion equation to achieve the ability for a distortion free filtration on non-Euclidean surfaces as well as the compability with X-CT generated triangular mesh measurement data. The widely used roughness parameters, such as Sa and Sq, are also extended for the same purpose.
LanguageEnglish
Title of host publication7th Conference on Industrial Computed Tomography
Publication statusPublished - 7 Feb 2017
Event7th Conference on Industrial Computed Tomography - Leuven, Belgium
Duration: 7 Feb 20179 Feb 2017
Conference number: 7
https://www.ict2017.org/ (Link to Conference Website)

Publication series

NameOpen Access Database of Nondestructive Testing
ISSN (Electronic)1435-4934

Conference

Conference7th Conference on Industrial Computed Tomography
Abbreviated titleiCT 2017
CountryBelgium
Period7/02/179/02/17
Internet address

Fingerprint

Tomography
Surface roughness
X rays
3D printers
Data structures
Textures
Geometry

Cite this

Lou, S., Abdul-Rahman, H., Zeng, W., Jiang, X., & Scott, P. (2017). A Preliminary Investigation on Surface Roughness Assessement of Complex Additive Manufactured Parts Scanned by X-ray Computed Tomography. In 7th Conference on Industrial Computed Tomography (Open Access Database of Nondestructive Testing).
Lou, Shan ; Abdul-Rahman, Hussein ; Zeng, Wenhan ; Jiang, Xiangqian ; Scott, Paul. / A Preliminary Investigation on Surface Roughness Assessement of Complex Additive Manufactured Parts Scanned by X-ray Computed Tomography. 7th Conference on Industrial Computed Tomography. 2017. (Open Access Database of Nondestructive Testing).
@inproceedings{9df1c787371a4230961ec2ab72c483e7,
title = "A Preliminary Investigation on Surface Roughness Assessement of Complex Additive Manufactured Parts Scanned by X-ray Computed Tomography",
abstract = "Additive manufacturing technologies have many advantages over conventional subtractive counterparts. X-CT is currently the unique way to measure both the internal and external geometries of complex AM products, which is not possible using either the tactile or optical measurement methods. However one of the barriers that restrict X-CT usage from being useful for surface texture assessment is that X-CT generated data structure is not compatiable with the standard procedures of roughness characterization which requires uniform sampled data and also takes the prerequite that measured surface is basically planar. It is proposed to use the Gaussian filter based on the linear diffusion equation to achieve the ability for a distortion free filtration on non-Euclidean surfaces as well as the compability with X-CT generated triangular mesh measurement data. The widely used roughness parameters, such as Sa and Sq, are also extended for the same purpose.",
author = "Shan Lou and Hussein Abdul-Rahman and Wenhan Zeng and Xiangqian Jiang and Paul Scott",
year = "2017",
month = "2",
day = "7",
language = "English",
series = "Open Access Database of Nondestructive Testing",
booktitle = "7th Conference on Industrial Computed Tomography",

}

Lou, S, Abdul-Rahman, H, Zeng, W, Jiang, X & Scott, P 2017, A Preliminary Investigation on Surface Roughness Assessement of Complex Additive Manufactured Parts Scanned by X-ray Computed Tomography. in 7th Conference on Industrial Computed Tomography. Open Access Database of Nondestructive Testing, 7th Conference on Industrial Computed Tomography , Belgium, 7/02/17.

A Preliminary Investigation on Surface Roughness Assessement of Complex Additive Manufactured Parts Scanned by X-ray Computed Tomography. / Lou, Shan; Abdul-Rahman, Hussein; Zeng, Wenhan; Jiang, Xiangqian; Scott, Paul.

7th Conference on Industrial Computed Tomography. 2017. (Open Access Database of Nondestructive Testing).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - A Preliminary Investigation on Surface Roughness Assessement of Complex Additive Manufactured Parts Scanned by X-ray Computed Tomography

AU - Lou, Shan

AU - Abdul-Rahman, Hussein

AU - Zeng, Wenhan

AU - Jiang, Xiangqian

AU - Scott, Paul

PY - 2017/2/7

Y1 - 2017/2/7

N2 - Additive manufacturing technologies have many advantages over conventional subtractive counterparts. X-CT is currently the unique way to measure both the internal and external geometries of complex AM products, which is not possible using either the tactile or optical measurement methods. However one of the barriers that restrict X-CT usage from being useful for surface texture assessment is that X-CT generated data structure is not compatiable with the standard procedures of roughness characterization which requires uniform sampled data and also takes the prerequite that measured surface is basically planar. It is proposed to use the Gaussian filter based on the linear diffusion equation to achieve the ability for a distortion free filtration on non-Euclidean surfaces as well as the compability with X-CT generated triangular mesh measurement data. The widely used roughness parameters, such as Sa and Sq, are also extended for the same purpose.

AB - Additive manufacturing technologies have many advantages over conventional subtractive counterparts. X-CT is currently the unique way to measure both the internal and external geometries of complex AM products, which is not possible using either the tactile or optical measurement methods. However one of the barriers that restrict X-CT usage from being useful for surface texture assessment is that X-CT generated data structure is not compatiable with the standard procedures of roughness characterization which requires uniform sampled data and also takes the prerequite that measured surface is basically planar. It is proposed to use the Gaussian filter based on the linear diffusion equation to achieve the ability for a distortion free filtration on non-Euclidean surfaces as well as the compability with X-CT generated triangular mesh measurement data. The widely used roughness parameters, such as Sa and Sq, are also extended for the same purpose.

M3 - Conference contribution

T3 - Open Access Database of Nondestructive Testing

BT - 7th Conference on Industrial Computed Tomography

ER -

Lou S, Abdul-Rahman H, Zeng W, Jiang X, Scott P. A Preliminary Investigation on Surface Roughness Assessement of Complex Additive Manufactured Parts Scanned by X-ray Computed Tomography. In 7th Conference on Industrial Computed Tomography. 2017. (Open Access Database of Nondestructive Testing).