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Effect of initial surface topography during laser polishing process: statistical analysis

From National Research Council Canada

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DOIResolve DOI: https://doi.org/10.1016/j.promfg.2019.06.150
AuthorSearch for: 1; Search for: 1; Search for: 1
Affiliation
  1. National Research Council of Canada. Automotive and Surface Transportation
FormatText, Article
Conference47th SME North American Manufacturing Research Conference, NAMRC 47, June 10-14, 2019, Pennsylvania, USA
Subjectlaser polishing; surface quality; statistical analysis; initial topography; laser power; travel speed; roughness
Abstract
Surface finish is one of the most important quality characteristics of fabricated components. Laser polishing (LP) is one of the advanced manufacturing surface finishing techniques that has been recently developed and successfully employed for improving surface quality without deteriorating the overall structural form through surface smoothing by melting and redistributing a thin layer of molten material. This paper advances the statistical analysis of the LP process emphasizing aspects of the effect of the initial surface topography. Flat and ground initial surfaces are used for comparative statistical analysis of initial and polished profiles obtained experimentally. Their profile geometries and surface quality characteristics, such as, roughness, were compared and analyzed. In addition, LP process was experimentally investigated as a thermodynamic operator represented by a transfer function and it was examined by means of a coherence function.
Publication date
PublisherElsevier
In
  • Procedia Manufacturing 34: 269–274.
LanguageEnglish
Peer reviewedYes
NRC numberNRC-AST-33
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Record identifierd9571180-40cb-4f07-9f0b-0a0452e48789
Record created2020-04-16
Record modified2020-09-08
Date modified: