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Hole-quality evaluation in drilling fiber-reinforced composites

Hrechuk, Andrew LU ; Bushlya, Volodymyr LU and Ståhl, Jan Eric LU (2018) In Composite Structures 204. p.378-387
Abstract

This paper presents a novel approach for a complex evaluation of the quality of drilled holes in fiber-reinforced composite materials. The proposed methodology is based on non-destructive quantification of visible defects based on the numerical analysis of drilled hole images. Automatic contour definition and profile formation for the uncut fibers and delamination were implemented via modularized algorithms. Four criteria for the evaluation of the defect height and width distribution were developed and combined into an overall quality parameter, Q. The methodology was validated experimentally by drilling carbon-fiber-reinforced polymer (CFRP) samples with a cemented carbide drill bit. The results showed a linear relation between the... (More)

This paper presents a novel approach for a complex evaluation of the quality of drilled holes in fiber-reinforced composite materials. The proposed methodology is based on non-destructive quantification of visible defects based on the numerical analysis of drilled hole images. Automatic contour definition and profile formation for the uncut fibers and delamination were implemented via modularized algorithms. Four criteria for the evaluation of the defect height and width distribution were developed and combined into an overall quality parameter, Q. The methodology was validated experimentally by drilling carbon-fiber-reinforced polymer (CFRP) samples with a cemented carbide drill bit. The results showed a linear relation between the hole quality Q, the drilled hole number, and tool wear.

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Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
CFRP, Delamination, Drilling, Hole quality, Uncut fibers
in
Composite Structures
volume
204
pages
10 pages
publisher
Elsevier
external identifiers
  • scopus:85050865547
ISSN
0263-8223
DOI
10.1016/j.compstruct.2018.07.105
language
English
LU publication?
yes
id
9325d238-81c0-4197-a229-d43405d292fb
date added to LUP
2018-08-14 15:24:07
date last changed
2019-12-04 07:17:00
@article{9325d238-81c0-4197-a229-d43405d292fb,
  abstract     = {<p>This paper presents a novel approach for a complex evaluation of the quality of drilled holes in fiber-reinforced composite materials. The proposed methodology is based on non-destructive quantification of visible defects based on the numerical analysis of drilled hole images. Automatic contour definition and profile formation for the uncut fibers and delamination were implemented via modularized algorithms. Four criteria for the evaluation of the defect height and width distribution were developed and combined into an overall quality parameter, Q. The methodology was validated experimentally by drilling carbon-fiber-reinforced polymer (CFRP) samples with a cemented carbide drill bit. The results showed a linear relation between the hole quality Q, the drilled hole number, and tool wear.</p>},
  author       = {Hrechuk, Andrew and Bushlya, Volodymyr and Ståhl, Jan Eric},
  issn         = {0263-8223},
  language     = {eng},
  month        = {11},
  pages        = {378--387},
  publisher    = {Elsevier},
  series       = {Composite Structures},
  title        = {Hole-quality evaluation in drilling fiber-reinforced composites},
  url          = {http://dx.doi.org/10.1016/j.compstruct.2018.07.105},
  doi          = {10.1016/j.compstruct.2018.07.105},
  volume       = {204},
  year         = {2018},
}