Abstract
An eruption of porosities which degrade strength reliability of products, is inevitable 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.
| Original language | English |
|---|---|
| Pages (from-to) | 915-916 |
| Number of pages | 2 |
| Journal | Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A |
| Volume | 74 |
| Issue number | 6 |
| Publication status | Published - 2008 Jun |
| Externally published | Yes |
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Keywords
- Aluminum alloy
- Charpy impact strength
- Die casting
- Fracture surface
- Plastic working
- Porosity
- X-ray computed tomography
ASJC Scopus subject areas
- Mechanical Engineering
Cite this
Improvement of Charpy impact strength of aluminum alloy die castings by PRPC process. / Hangai, Yoshihiko; Kitahara, Soichiro; Sato, Kenji; Kuwazuru, Osamu; Utsunomiya, Takao; Yoshikawa, Nobuhiro.
In: Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A, Vol. 74, No. 6, 06.2008, p. 915-916.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Improvement of Charpy impact strength of aluminum alloy die castings by PRPC process
AU - Hangai, Yoshihiko
AU - Kitahara, Soichiro
AU - Sato, Kenji
AU - Kuwazuru, Osamu
AU - Utsunomiya, Takao
AU - Yoshikawa, Nobuhiro
PY - 2008/6
Y1 - 2008/6
N2 - An eruption of porosities which degrade strength reliability of products, is inevitable 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.
AB - An eruption of porosities which degrade strength reliability of products, is inevitable 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.
KW - Aluminum alloy
KW - Charpy impact strength
KW - Die casting
KW - Fracture surface
KW - Plastic working
KW - Porosity
KW - X-ray computed tomography
UR - http://www.scopus.com/inward/record.url?scp=50649091307&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=50649091307&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:50649091307
VL - 74
SP - 915
EP - 916
JO - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
JF - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
SN - 0387-5008
IS - 6
ER -