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Automated detection of tool wear in machining and characterization of its shape

Hrechuk, Andrii LU orcid and Bushlya, Volodymyr LU (2023) In Wear 523.
Abstract

Flank wear VBmax remains one of the most essential and used metrics for measuring tool wear. VBmax is used to characterize tool wear rate, machinability of materials, the quality of machined surface. While VBmax measures the size of wear scar, the shape of the tool wear remains less used but not the least applicable for such characterization. However, quantification of the wear shape requires a more detailed information about the wear contour. This study develops an Image Processing solution for automated tool wear detection and applies Delaunay triangulation and implenarity parameter for characterizing the shape of the wear scar. Validation of the approach has been performed for machining stainless... (More)

Flank wear VBmax remains one of the most essential and used metrics for measuring tool wear. VBmax is used to characterize tool wear rate, machinability of materials, the quality of machined surface. While VBmax measures the size of wear scar, the shape of the tool wear remains less used but not the least applicable for such characterization. However, quantification of the wear shape requires a more detailed information about the wear contour. This study develops an Image Processing solution for automated tool wear detection and applies Delaunay triangulation and implenarity parameter for characterizing the shape of the wear scar. Validation of the approach has been performed for machining stainless steel 316L without and with abrasive Al2O3 and SiO2 inclusions. It is shown that VBmax and area parameters of the wear scar are insensitive to wear shape, while implenarity can accurately quantify irregularity, curvature, asymmetry of the scar. The results also show a strong relationship between the tool wear shape, the hardness and size of inclusions in the steel.

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author
and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
316L, Flank wear, Implenarity, Shape, Tool wear
in
Wear
volume
523
article number
204762
publisher
Elsevier
external identifiers
  • scopus:85151318209
ISSN
0043-1648
DOI
10.1016/j.wear.2023.204762
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2023
id
0681b11a-e06b-42ce-8df0-02788bb9b64a
date added to LUP
2023-04-16 23:52:03
date last changed
2024-03-08 00:04:52
@article{0681b11a-e06b-42ce-8df0-02788bb9b64a,
  abstract     = {{<p>Flank wear VB<sub>max</sub> remains one of the most essential and used metrics for measuring tool wear. VB<sub>max</sub> is used to characterize tool wear rate, machinability of materials, the quality of machined surface. While VB<sub>max</sub> measures the size of wear scar, the shape of the tool wear remains less used but not the least applicable for such characterization. However, quantification of the wear shape requires a more detailed information about the wear contour. This study develops an Image Processing solution for automated tool wear detection and applies Delaunay triangulation and implenarity parameter for characterizing the shape of the wear scar. Validation of the approach has been performed for machining stainless steel 316L without and with abrasive Al<sub>2</sub>O<sub>3</sub> and SiO<sub>2</sub> inclusions. It is shown that VB<sub>max</sub> and area parameters of the wear scar are insensitive to wear shape, while implenarity can accurately quantify irregularity, curvature, asymmetry of the scar. The results also show a strong relationship between the tool wear shape, the hardness and size of inclusions in the steel.</p>}},
  author       = {{Hrechuk, Andrii and Bushlya, Volodymyr}},
  issn         = {{0043-1648}},
  keywords     = {{316L; Flank wear; Implenarity; Shape; Tool wear}},
  language     = {{eng}},
  month        = {{06}},
  publisher    = {{Elsevier}},
  series       = {{Wear}},
  title        = {{Automated detection of tool wear in machining and characterization of its shape}},
  url          = {{http://dx.doi.org/10.1016/j.wear.2023.204762}},
  doi          = {{10.1016/j.wear.2023.204762}},
  volume       = {{523}},
  year         = {{2023}},
}