223 Grain Boundary Step Generation in Ultraprecision Cutting of Al-Mg Alloy

• Ohashi K.

  Okayama University

• Yoshikawa M.

  Industrial Technology Center of Okayama Prefecture

• Tsukamoto S.

  Okayama University

• Nakajima T.

  Okayama University

抄録

In this study, the characteristics of grain boundary step generation in practical ultraprecision cutting opreration of Al-Mg alloy are experimentally made clear by analyzing height of grain boundary step, crystal direction, surface finish, residual stress and so on. Especially, crystal direction of each crystal grain of Al-Mg alloy appearing on finished surface is decided by ECP (Electron channeling pattern) method, and relationships between crystal orientation and height of grain boundary step are investigated. Main conclusions obtained in this study are as follows : (1) The height of grain boundary step on finished surface increases with a closen crystal orientation to (1 2 4) on the stereographic projection of crystal direction of Al-Mg alloy. (2) The height of grain boundary step or the surface finish decrease with a decrease of clearance angle of cutting tool. So a cutting tool with a smaller clearance angle results in finer machined surface.

収録刊行物

• Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21

  Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21 2003 (0), 327-332, 2003

  一般社団法人 日本機械学会

キーワード

• Ultraprecision cutting
• Al-Mg alloy
• Grain boundary step generation
• Clearance angle
• Surface finish
• Crystal orientation

詳細情報

• CRID: 1390001205899149824
• NII論文ID: 110002498342
• DOI: 10.1299/jsmelem.2003.327
• ISSN: 24243086
• Web Site: https://www.jstage.jst.go.jp/article/jsmelem/2003/0/2003_327/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可