High velocity compaction of ferrous powder

Chin J Mater Res

2008, Vol. 22

Issue (6): 589-592 DOI:

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High velocity compaction of ferrous powder

WANG Jianzhong; QU Xuahui^†; YIN Haiqing; ZHOU Shengyu

State Key Laboratory for Advanced Metals and Materials; School of Materials Science & Engineering;
University of Science & Technology Beijing; Beijing 100083

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WANG Jianzhong; QU Xuahui; YIN Haiqing; ZHOU Shengyu. High velocity compaction of ferrous powder. Chin J Mater Res, 2008, 22(6): 589-592.

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Abstract

Ferrous parts were prepared through high velocity compaction (HVC), the relationship between the impact energy, the impact velocity and the stroke length was investigated. The effects of impact energy and compaction methods on the green density, the maximal impact force, the withdraw force and the radial springback were discussed. The results showed that the impact energy was direct proportional to the stroke length and the impact velocity is parabolic to it. The green density increased with the impact energy increasing. In single impact the green density was 7.336 g/cm³, relative density about 97%, when impact energy was 6510 J. For the same total impact energy the green density of specimen processed by double impacts was the best and that of specimen fabricated by triplex impacts was the lowest. The withdraw force and the radial springback of specimen produced by HVC were all lower than that of specimen processed by traditional compaction.

Key words: synthesizing and processing technics PM green density high velocity compaction impact energy withdraw force

Received: 08 January 2008

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	WANG Jianzhong
	QU Xuahui
	YIN Haiqing
	ZHOU Chengyu

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https://www.cjmr.org/EN/ OR https://www.cjmr.org/EN/Y2008/V22/I6/589

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