蒸留水を加工液としたTi-6Al-4V合金の放電加工特性 Electrical discharge machining characteristics of Ti-6Al-4V alloy using distilled water as a dielectric fluid

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This paper deals with the possibility of distilled water as a dielectric fluid for electrical discharge machining of Ti–6Al–4V alloy, and the comparison of electrical discharge machining characteristics using both distilled water and kerosene is also investigated. The experimental results indicate that when machining Ti–6Al–4V alloy in distilled water, the material removal rate is larger than that of using kerosene. This indicates obviously that distilled water is the more effective dielectric fluid for electrical discharge machining of Ti–6Al–4V alloy. It is also found that the material removal rate is remarkably enlarged with increasing discharge current and pulse duration. Since the distilled water has higher thermal conductivity, the rapidly solidificated debris has a certain thickness of fine grains around the debris, while columnar grains around the debris produced using kerosene is observed. It is also found that there is only a thin recasting layer on the surface when machining in distilled water, while a thicker recasting and hardened layer produced in kerosene is observed. Although machining Ti–6Al–4V alloy using distilled water has a significant effect on the electrical discharge machining characteristics, particularly in the material removal rate, but a higher roughness of surface than using kerosene is also obvious.

収録刊行物

  • 軽金属

    軽金属 47(4), 226-231, 1997-04-30

    The Japan Institute of Light Metals

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各種コード

  • NII論文ID(NAID)
    10003795296
  • 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
    4184920
  • 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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