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A study of the surface integrity after machining by means of non-destructive testing methods
Chalmers University of Technology.
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2013 (English)In: Proceedings of the International Conference on Advanced Manufacturing Engineering and Technologies Vol. 2 / [ed] A. Archenti and A. Maffei, Stockholm, 2013, 283-292 p.Conference paper, Published paper (Refereed)
Abstract [en]

During metal machining, depending on the cutting conditions, surface and subsurface microstructure alteration are occasionally observed. These alternations are normally referred as “white” and “dark” layers. Due to their different mechanical properties in comparison to the unaffected material, they will have an impact on the finished part. Controlling the quality of the machined parts regarding the surface microstructure alteration by means of non-destructive testing (NDT) methods would be beneficial from production point of view. In this study, the surface integrity of AISI 52100 steel machined at different cutting conditions resulting in white and dark layers with different characteristics were studied. Surface topography, microstructure and residual stresses were examined by using light scattering, optical microscopy and x-ray diffraction (XRD) techniques. Whilst surface characterization was emphasized, one NDT method – magnetic Barkhausen noise (BN) technique – is not well defined for this purpose. The correlation between all the applied techniques was therefore investigated and a preliminary model was developed for the influence of surface roughness, stress conditions and white and dark layer thicknesses on BN signal.

Place, publisher, year, edition, pages
Stockholm, 2013. 283-292 p.
Keyword [en]
NDT, machining, white layer, light scattering, x-ray diffraction, Barkhausen noise
National Category
Production Engineering, Human Work Science and Ergonomics
Research subject
SRA - Production
Identifiers
URN: urn:nbn:se:kth:diva-137976ISBN: 978-91-7501-893-5 (print)OAI: oai:DiVA.org:kth-137976DiVA: diva2:680467
Conference
The NewTech 2013 conference, Oct 27-30, 2013, Stockholm
Projects
FFI-Non Destructive Testing methods - development of innovative solutions for in-line applications
Funder
VINNOVAXPRES - Initiative for excellence in production research
Note

QC 20150212

Available from: 2013-12-18 Created: 2013-12-17 Last updated: 2015-02-12Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf