アルミニウム薄板の半楕円体状CNCインクリメンタル張出成形 Hemi-ellipsoidal stretch-expanding of alumimum sheet by CNC invremental forming process with two path method

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For incremental stretch-expanding of sheet metal, the reduction of tool-path schedule is recognized because numerous tool-paths are generally necessary for producing the required profile. A suitable tool-path schedule has been found for hemispherical shells, but the tool-path schedule for hemi-ellipsoidal shells has not been solved yet. In order to reduce the tool-path schedules for producing the hemi-ellipsoidal shells, a possibility of two path method in which a hemi-ellipsoidal shell is formed from a flat blank by means of conical stretch-expanding at first stage and subsequent hemi-ellipsoidal stretch-expanding at second stage was experimentally investigated using blanks of 1100 commercially pure aluminum sheet. Experimental results showed that the occurrence condition of unfavorable deformation modes, such as rupture and rising, depended much on the condition of conical shell height at first stage; by selecting suitable condition of the height, the hemi-ellipsoidal shell could be formed from the aluminum blank.

収録刊行物

  • 軽金属

    軽金属 47(8), 440-445, 1997-08-30

    The Japan Institute of Light Metals

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各種コード

  • NII論文ID(NAID)
    10003795811
  • 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
    4285230
  • 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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