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Experimental study of fibre laser microdrilling of aerospace superalloy by trepanning technique

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Abstract

In the present study, fibre laser microdrilling of NIMONIC®263 sheet is investigated through an experimental testing campaign. Design of experiments (DOE) and analysis of variance (ANOVA) are applied with the aim to study the influence of the process parameters on the hole geometry and metallurgical properties. The results show that the laser allows drilling ~0.4-mm-thick NIMONIC®263 sheets with a trepanning speed up to 600 mm/min, obtaining good tolerance, low recast layer and absence of microcracks.

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Authors and Affiliations

  1. Department of Industrial Engineering, University of Naples Federico II, P.le Tecchio 80, 80125, Naples, Italy

    F. Tagliaferri & B. Palumbo

  2. CIRTIBS Research Centre, University of Naples Federico II, P.le Tecchio 80, 80125, Naples, Italy

    S. Genna & C. Leone

  3. Department of Industrial and Information Engineering, University of Campania Luigi Vanvitelli, Via Roma 29 (Ce), 81031, Aversa, Italy

    C. Leone

  4. Avio Aero, Viale Giuseppe Luraghi 20, 80038, Pomigliano d’Arco, NA, Italy

    G. De Chiara

Authors
  1. F. Tagliaferri
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  2. S. Genna
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  3. C. Leone
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  4. B. Palumbo
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  5. G. De Chiara
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Correspondence to F. Tagliaferri.

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Tagliaferri, F., Genna, S., Leone, C. et al. Experimental study of fibre laser microdrilling of aerospace superalloy by trepanning technique. Int J Adv Manuf Technol 93, 3203–3210 (2017). https://doi.org/10.1007/s00170-017-0773-4

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  • DOI: https://doi.org/10.1007/s00170-017-0773-4

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