Towards a new definition of areal surface texture parameters on freeform surface: Re-entrant features and functional parameters

Research output: Contribution to journalArticle

Abstract

Characterisation of freeform surfaces is an increasingly importance area of metrology. Currently the characterisation of surfaces is performed using data that can be represented by a height map. Modern measurement devices allow the acquisition of surfaces with complex shapes that cannot properly be analysed using the current texture parameters definition. In this paper a method to characterise both freeform surfaces and surfaces with re-entrant features is proposed. Two surface approximation methods are investigated: triangular mesh and Bézier surface. The proposed method will be compared with a method able to extract the ISO 25178-2 areal texture parameters from a triangular mesh.
LanguageEnglish
Pages442 - 459
Number of pages18
JournalMeasurement
Volume141
Early online date19 Apr 2019
DOIs
Publication statusPublished - 1 Jul 2019

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Surface Texture
Free-form Surface
Textures
Triangular Mesh
Texture
Surface Approximation
Bézier Surface
Metrology
Approximation Methods

Cite this

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title = "Towards a new definition of areal surface texture parameters on freeform surface: Re-entrant features and functional parameters",
abstract = "Characterisation of freeform surfaces is an increasingly importance area of metrology. Currently the characterisation of surfaces is performed using data that can be represented by a height map. Modern measurement devices allow the acquisition of surfaces with complex shapes that cannot properly be analysed using the current texture parameters definition. In this paper a method to characterise both freeform surfaces and surfaces with re-entrant features is proposed. Two surface approximation methods are investigated: triangular mesh and B{\'e}zier surface. The proposed method will be compared with a method able to extract the ISO 25178-2 areal texture parameters from a triangular mesh.",
keywords = "Surface characterisation, Re-entrant features, Additive manufacturing, Freeform surface,",
author = "Luca Pagani and Andrew Townsend and Wenhan Zeng and Shan Lou and Liam Blunt and Jiang, {Xiang Qian} and Scott, {Paul J.}",
year = "2019",
month = "7",
day = "1",
doi = "10.1016/j.measurement.2019.04.027",
language = "English",
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pages = "442 -- 459",
journal = "Measurement",
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T1 - Towards a new definition of areal surface texture parameters on freeform surface

T2 - Measurement

AU - Pagani, Luca

AU - Townsend, Andrew

AU - Zeng, Wenhan

AU - Lou, Shan

AU - Blunt, Liam

AU - Jiang, Xiang Qian

AU - Scott, Paul J.

PY - 2019/7/1

Y1 - 2019/7/1

N2 - Characterisation of freeform surfaces is an increasingly importance area of metrology. Currently the characterisation of surfaces is performed using data that can be represented by a height map. Modern measurement devices allow the acquisition of surfaces with complex shapes that cannot properly be analysed using the current texture parameters definition. In this paper a method to characterise both freeform surfaces and surfaces with re-entrant features is proposed. Two surface approximation methods are investigated: triangular mesh and Bézier surface. The proposed method will be compared with a method able to extract the ISO 25178-2 areal texture parameters from a triangular mesh.

AB - Characterisation of freeform surfaces is an increasingly importance area of metrology. Currently the characterisation of surfaces is performed using data that can be represented by a height map. Modern measurement devices allow the acquisition of surfaces with complex shapes that cannot properly be analysed using the current texture parameters definition. In this paper a method to characterise both freeform surfaces and surfaces with re-entrant features is proposed. Two surface approximation methods are investigated: triangular mesh and Bézier surface. The proposed method will be compared with a method able to extract the ISO 25178-2 areal texture parameters from a triangular mesh.

KW - Surface characterisation

KW - Re-entrant features

KW - Additive manufacturing

KW - Freeform surface,

U2 - 10.1016/j.measurement.2019.04.027

DO - 10.1016/j.measurement.2019.04.027

M3 - Article

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SP - 442

EP - 459

JO - Measurement

JF - Measurement

SN - 1536-6367

ER -