Abstract
Metal Injection Molding (MIM) process is suitable for fabricating small parts in large quantity. In this work, relatively large and complex shaped parts were prepared thorough MIM. In order to decrease the deformation of sintered parts, powders of different sizes were mixed. The effect of powder particle distribution and powder loading on the distortion of complex shaped compacts were investigated and evaluated. As smaller the particle size of mixed powder, tap density of powder were decreased. However, sintered density and shrinkage were increased. Although high powder loading increased the viscosity during the injection molding, decreased the shrinkage of sintered compact. From these results, smaller deformation of the large and complex shaped parts could be realized by using smaller particle size of mixed powder and higher powder loading.
| Original language | English |
|---|---|
| Pages (from-to) | 108-113 |
| Number of pages | 6 |
| Journal | Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy |
| Volume | 62 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Mar 1 2015 |
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All Science Journal Classification (ASJC) codes
- Mechanical Engineering
- Industrial and Manufacturing Engineering
- Metals and Alloys
- Materials Chemistry
Cite this
Deformation control of large sized MIM parts by changing the powder size distribution. / Osada, Toshiko; Sakurai, Ryosuke; Hashikawa, Ryuichi; Tsumori, Fujio; Miura, Hideshi; Toda, Kinji.
In: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, Vol. 62, No. 3, 01.03.2015, p. 108-113.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Deformation control of large sized MIM parts by changing the powder size distribution
AU - Osada, Toshiko
AU - Sakurai, Ryosuke
AU - Hashikawa, Ryuichi
AU - Tsumori, Fujio
AU - Miura, Hideshi
AU - Toda, Kinji
PY - 2015/3/1
Y1 - 2015/3/1
N2 - Metal Injection Molding (MIM) process is suitable for fabricating small parts in large quantity. In this work, relatively large and complex shaped parts were prepared thorough MIM. In order to decrease the deformation of sintered parts, powders of different sizes were mixed. The effect of powder particle distribution and powder loading on the distortion of complex shaped compacts were investigated and evaluated. As smaller the particle size of mixed powder, tap density of powder were decreased. However, sintered density and shrinkage were increased. Although high powder loading increased the viscosity during the injection molding, decreased the shrinkage of sintered compact. From these results, smaller deformation of the large and complex shaped parts could be realized by using smaller particle size of mixed powder and higher powder loading.
AB - Metal Injection Molding (MIM) process is suitable for fabricating small parts in large quantity. In this work, relatively large and complex shaped parts were prepared thorough MIM. In order to decrease the deformation of sintered parts, powders of different sizes were mixed. The effect of powder particle distribution and powder loading on the distortion of complex shaped compacts were investigated and evaluated. As smaller the particle size of mixed powder, tap density of powder were decreased. However, sintered density and shrinkage were increased. Although high powder loading increased the viscosity during the injection molding, decreased the shrinkage of sintered compact. From these results, smaller deformation of the large and complex shaped parts could be realized by using smaller particle size of mixed powder and higher powder loading.
UR - http://www.scopus.com/inward/record.url?scp=84928158936&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84928158936&partnerID=8YFLogxK
U2 - 10.2497/jjspm.62.108
DO - 10.2497/jjspm.62.108
M3 - Article
AN - SCOPUS:84928158936
VL - 62
SP - 108
EP - 113
JO - Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
JF - Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
SN - 0532-8799
IS - 3
ER -