セラミックス成形体の被削性に関する研究(第3報) -切削モデルの検討- On the Machinability for Alumina-green Compact (Part 3rd) A Study of Cutting Model

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抄録

In recent years, many ceramics have been to developed for the uses. Some ceramics for mechanical or electronic parts are required to be cut as the green compact. The cutting of the green compact is decreased cracks on the machined surface. The purpose of the paper is to clarify the mechanism at cutting of green compact. The cutting mechanism is investigated and discussed from the results of the fracture test by a new type testing machine and of the cutting test by a lathe. In the cutting test, the radius of cutting edge were varied from 0.8mm to 4mm. A fracture model is proposed from AE(Acoustic Emission) signal caused by fracture and SEM image of fracture surface. The main results obtained are as follows; (1) AE signal shows there stages of fracturing the green compact. (2) The fracture energy is from 4 J/m<SUP>2</SUP> to 7 J/m<SUP>2</SUP>. (3) A fracture model is available to clarify the cutting mechanism. (4) The tool with large side cutting edge angle is able to cut a work at high efficiency and to elongate the tool life.

収録刊行物

  • 粉体および粉末冶金  

    粉体および粉末冶金 44(3), 227-231, 1997-03-15 

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10002013592
  • NII書誌ID(NCID)
    AN00222724
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    05328799
  • NDL 記事登録ID
    4172704
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-274
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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