Journal
MEASUREMENT
Volume 141, Issue -, Pages 442-459Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.measurement.2019.04.027
Keywords
Surface characterisation; Re-entrant features; Freeform surface; Additive manufacturing
Funding
- UK's Engineering and Physical Sciences Research Council (EPSRC) [EP/R024162/1]
- EPSRC [EP/P006930/1, EP/R024162/1] Funding Source: UKRI
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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 Bezier surface. The proposed method will be compared with a method able to extract the ISO 25178-2 areal texture parameters from a triangular mesh. (C) 2019 The Author(s). Published by Elsevier Ltd.
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