Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)
- 2006.09b
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- Pages.750-751
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- 2006
An Investigation on the Effects of Powder Warming, Inner Lubrication, and Die Wall Lubrication on the Die Wall Lubricated Warm Compation of Iron Powder
- Ozaki, Yukiko (Steel Research Laboratory) ;
- Alessandri, Elena (Vulcanus in Japan 2003-2004 for Students from European Union (trainee at JFE Steel Corporation)) ;
- Uenosono, Satoshi (Steel Research Laboratory) ;
- Takamiya, Tsuguyuki (Steel Research Laboratory) ;
- Shigeru, Takano (Steel Research Laboratory)
- Published : 2006.09.24
Abstract
We investigated the mechanism how the high green density can be provided during die lubricated warm compaction (WD). We observed and analyzed the densification processes of iron powders including different contents of an inner lubricant, and measured the lateral pressure at the die wall during WD in comparison with conventional compaction and warm compaction. As a result, the high density in WD was due to not only the particles-deformation enhanced by warming powders but also the particles-rearrangement promoted by reducing an amount of the inner lubricant rather than the die lubrication.
Keywords
- warm compaction;
- die wall lubrication;
- pressure propagation;
- particles-rearrangement;
- particles-deformation