Characterization and optimization of vibration-assisted drilling of fibre reinforced epoxy laminates

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DOIResolve DOI: http://doi.org/10.1016/j.cirp.2013.03.097
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TypeArticle
Journal titleCIRP Annals - Manufacturing Technology
ISSN0007-8506
Volume62
Issue1
Pages9194; # of pages: 4
SubjectCutting energy; Cutting temperature; Fibre-reinforced epoxy; Hole quality; Intermittent cutting; Mechanical defects; Process parameters; Vibration assisted drilling; Axial flow; Composite materials; Defects; Drilling; Optimization
AbstractVibration-assisted drilling (VAD) can reduce thermal and mechanical defects associated with drilling of composites. Machinability maps are presented to establish the effect of the process parameters (speed, feed, frequency, and amplitude) in the low frequency-high amplitude regime (<200 Hz, <0.6 mm) on the hole quality attributes. The optimized VAD conditions can reduce the cutting temperature by 50% and the axial force by 40% and produce delamination-free holes, without affecting productivity. It is demonstrated that the intermittent cutting in VAD redistributes the cutting energy over the engagement cycles. This enhances the tool cooling and substantially reduces the axial force component. © 2013 CIRP.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); Aerospace (AERO-AERO)
Peer reviewedYes
NPARC number21269769
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Record identifiercfab2aaf-6fac-4b8f-bfd5-0093c5fb5153
Record created2013-12-13
Record modified2016-05-09
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