Drilling of carbon fiber-reinforced thermoplastics using a candlestick drill

DOI Open Access

Bibliographic Information

Other Title
  • 熱可塑性CFRPを対象としたローソク型ドリルによる穴加工
  • 1<sup>st</sup> Report : Influence of cutting direction and fiber orientation on cutting characteristics
  • 第1報：凸型切れ刃の切削方向と繊維配向が切削特性に及ぼす影響

Abstract

<p>This paper presents application of the candlestick drill with a convex cutting edge at the drill corner for drilling unidirectional carbon fiber-reinforced thermoplastic (CFRTP). The influence of the angle between the cutting direction of the continuously changing convex cutting edge and the fiber direction on the cutting characteristics was considered in terms of cutting force, hole quality, and cutting temperature. The cutting characteristics of the candlestick drill were compared with those of a conventional drill with the convex cutting edge removed. The thrust force of the candlestick drill was higher than that of the conventional drill at all drill rotation angles. The point of the convex cutting edge was thin and sharp in the axial direction and was involved in the cutting process before the corner of the main cutting edge, such that chips flowed independently of the main cutting edge. The quality of the drilled hole obtained with the candlestick drill was better than that obtained by the conventional drill.</p>

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Details 詳細情報について

  • CRID
    1390857910473052800
  • DOI
    10.11420/jsat.66.457
  • ISSN
    18807534
    09142703
  • Text Lang
    ja
  • Data Source
    • JaLC
    • KAKEN
  • Abstract License Flag
    Disallowed

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