Development of Under-cut Shape Sprocket Forming by CNC Press.

• Hirao Takayuki

  Nissan Motor Co. Ltd.

• Fujiki Akira

  Nissan Motor Co. Ltd.

• Saitou Masaki

  Nissan Motor Co. Ltd.

• Umegaki Shunzou

  Nissan Motor Co. Ltd.

• Katagiri Takeshi

  Yoshizuka Seiki Co. Ltd.

Bibliographic Information

Other Title

• 最近の自動車焼結部品　　ＣＮＣプレスによる自動車エンジン用スプロケットのアンダーカット成形
• CNC プレス ニ ヨル ジドウシャ エンジンヨウ スプロケット ノ アンダーカット セイケイ

Abstract

In standard P/M (Press-Sinter) technique, it is difficult to make under-cut shape parts. In this development, under-cut shape sprocket of whole circumference is made by CNC press and new designed die and tools. This paper describes the details of this development. 1) Features of CNC press and new designed die and tools for under-cut shape compacting. 2) How to eliminate cracks and barrs of this under-cut shape parts. 3) How to achieve the even density of this complex parts. 4) How to keep the dimensional tolerance of this parts.

Journal

• Journal of the Japan Society of Powder and Powder Metallurgy

  Journal of the Japan Society of Powder and Powder Metallurgy 46 (5), 548-553, 1999

  Japan Society of Powder and Powder Metallurgy

Keywords

• sprocket
• under-cut shape
• CNC press

Details

• CRID: 1390282681285552384
• NII Article ID: 10002262534
• NII Book ID: AN00222724
• DOI: 10.2497/jjspm.46.548
• ISSN: 18809014
• ISSN: 05328799
• NDL BIB ID: 4737400
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4737400
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed