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Please use this identifier to cite or link to this item: http://hdl.handle.net/10087/5502

Title: PRPC法によるアルミニウム合金ダイカストのシャルピー衝撃強さ向上
Other Titles: Improvement of Charpy Impact Strength of Aluminium Alloy Die Castings by PRPC Process
Authors: 半谷, 禎彦
北原, 総一郎
佐藤, 健二
桑水流, 理
宇都宮, 登雄
吉川, 暢宏
Keywords: Die Casting
Porosity
Charpy Impact Strength
X-ray Computed Tomography
Plastic Working
Frecture Surface
Aluminum Alloy
Issue Date: 25-Jun-2008
Publisher: 日本機械学会
Citation: 日本機械学会論文集.A編 74(742), 915-916 (2008)
Abstract: An eruption of porosities which degrade strength reliability of products, is inevirable in the die casting process. We have investigated PRPC (Porosity Reducing Post Compression) process of ADC12 aluminum alloy die castings to reduce inside porosity. In this study, a validity of PRPC process is demonstrated in terms of the Charpy impact strength. We ensure that the porosity ratio was considerably reduced by the PRPC process by means of X-ray CT observation. We conclude that the Charpy impact strength improves since the effective cross-sectional area of the specimen concerning fracture increases after PRPC process without any harmful influence. This conclusion is exemplified by the flat fracture surface of the specimen after PRPC process.
URI: http://hdl.handle.net/10087/5502
ISSN: 03875008
Appears in Collections:学術雑誌論文

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