チタン合金のドリル加工における高圧給油の効果 Effects of high pressure supply of coolant in drilling of titanium alloy

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In order to improve the drilling performance of titanium alloy (Ti–6Al–4V), drilling under high pressure supply of coolant has been investigated. High pressure supply (7 MPa) and conventional supply of coolant are compared mainly on tool wear in drilling by drill with oil holes in its lands. To make clear the causal relation between tool wear and cutting conditions, cutting forces and cutting temperature are measured. The results obtained are as follows; (1) High pressure supply of coolant is effective on drill wear in high cutting speed that drill wear increases significantly under conventional supply. (2) Critical cutting speed is determined from cutting temperature that hardness of tool material decreases remarkably. (3) Under high pressure supply of coolant, cutting temperature does not increase remarkably even in drilling a deep hole because major cutting edges are cooled and chips are ejected smoothly. (4) At low cutting speed and low feed rate, wear of drill is smaller under conventional supply of coolant. (5) It is important to improve the rigidity on drilling system when used at high pressure supply of coolant.

収録刊行物

  • 軽金属

    軽金属 47(3), 139-144, 1997-03-30

    The Japan Institute of Light Metals

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各種コード

  • NII論文ID(NAID)
    10003795111
  • 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
    4172734
  • 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  NDL  J-STAGE 
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