Experimental investigation on drilling of natural flax fiber-reinforced composites

H. Rezghi Maleki, M. Hamedi*, M. Kubouchi, Y. Arao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

60 Citations (Scopus)


Natural fiber composites (NFCs) have strong potential to replace glass fiber-reinforced plastics. An instrumental operation in machining composite structures is hole making which facilitates assembly of parts. Understanding the effects of drilling process parameters on feature properties of NFCs has great benefits. In this regard, to make a good quality and accurate hole in composite structures, appropriate selection of drill bit and cutting parameters is important. This paper investigates delamination behavior and hole quality of flax/epoxy composite laminates in response to feed, spindle speed, and three different types of drill bit. As indicated by analysis of variance results, drill bit type and feed have greater influences on the thrust force. It appeared that delamination factor and surface roughness were significantly influenced by drill bit, but not by feed and spindle speed. The choice of drill bit has great impact on the delamination factor (67.27%) and surface roughness (74.44%), respectively.

Original languageEnglish
Pages (from-to)283-292
Number of pages10
JournalMaterials and Manufacturing Processes
Issue number3
Publication statusPublished - 2019 Feb 17
Externally publishedYes


  • Flax
  • biocomposites
  • composites
  • delamination
  • drilling
  • fiber
  • force
  • quality
  • roughness

ASJC Scopus subject areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering


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