Development of under-cut shape sprocket forming by CNC press

Takayuki Hirao; Akira Fujiki; Masaki Saitou; Shunzou Umegaki; Takeshi Katagiri

doi:10.2497/jjspm.46.548

Development of under-cut shape sprocket forming by CNC press

Takayuki Hirao, Akira Fujiki, Masaki Saitou, Shunzou Umegaki, Takeshi Katagiri

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

In standard P/M (Press-Sinter) technique, it is difficult to make under-cut shape parts. In this development, undercut 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.

Original language	English
Pages (from-to)	548-553
Number of pages	6
Journal	Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume	46
Issue number	5
DOIs	https://doi.org/10.2497/jjspm.46.548
Publication status	Published - 1999 May
Externally published	Yes

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering
Metals and Alloys
Materials Chemistry

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AU - Katagiri, Takeshi

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AB - In standard P/M (Press-Sinter) technique, it is difficult to make under-cut shape parts. In this development, undercut 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.

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Development of under-cut shape sprocket forming by CNC press

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