Hole quality and burr reduction in drilling aluminium sheets

Lukas Pilny, Leonardo De Chiffre, Miroslav Piska, Morten F. Villumsen

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

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Optimization of the metal drilling process requires creation of minimum amount
of burrs and uniform appearance of the drilled holes. In this paper, an experimental
investigation was performed on 2 mm sheets of wrought aluminium alloy
Al99.7Mg0.5Cu-H24, using 1.6 and 2 mm diameter drills. Cutting data, clamping
conditions, and drill geometry were varied in order to optimize the process and
reach the desired quality. The results revealed possible reduction of burr occurrence
on both the entry and exit side of the sheet, requiring no additional deburring. The
demand on the uniform appearance of drilled holes was fulfilled as well as high
productivity achieved. Such optimized process results in a noticeable production
cost reduction.
Original languageEnglish
Title of host publicationInternational Conference NEWTECH 2011
Number of pages6
Publication date2011
ISBN (Print)978-80-214-4267-2
Publication statusPublished - 2011
EventInternational Conference NEWTECH 2011: International conference on Advanced Manufacturing Engineering. New technologies in manufacturing - Brno University of Technology, Brno, Czech Republic
Duration: 14 Sep 201115 Sep 2011


ConferenceInternational Conference NEWTECH 2011
LocationBrno University of Technology
Country/TerritoryCzech Republic


  • Drilling
  • Aluminium
  • Burr minimizing
  • Measurement
  • Vacuum clamping


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