Ti-6%Al-4%V合金の増減送りドリル加工 Intermittently decelerated feed drilling of Ti-6%Al-4%V alloy

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When drilling a titanium alloy, its low heat conductivity causes slow dispersion of heat evolved as a result of friction with a drill. Then a significant build up of heat at the cutting edges occurs, resulting in the increased welding phenomenon of chips at the tool flank as well as increased chipping. Therefore, it becomes difficult to determine a suitable cutting condition and tool material. In this work, intermittently decelerated feed drilling tests with high speed steel drills for a Ti–6%Al–4%V alloy were carried out on a CNC machine tool to improve the rate of chip removal. The results show the formation of easy-to-eliminate chips, reduced chip clogging, increased chip removal. Consequently, heat is readily dispersed to the exterior and the build up of heat at the cutting edges is reduced, resulting in the increased tool life by two times over a conventional drilling. Intermittently decelerated feed drilling is an effective method in drilling titanium alloys.

収録刊行物

  • 軽金属

    軽金属 46(3), 138-143, 1996-03-30

    The Japan Institute of Light Metals

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各種コード

  • NII論文ID(NAID)
    10003793576
  • NII書誌ID(NCID)
    AN00069773
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    04515994
  • NDL 記事登録ID
    3936717
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-284
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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