Abstract
This paper investigates the performance of feedstock characteristics for micro metal injection molding (μMIM) by using optimum power loading variation and rheologicalcharacterization. The study has been emphasized on the powder and binder system in which stainless steel SS316L powder are mixed with composite binder, which consists of PEG (Polyethelena Glycol), PMMA (Polymethyl Methacrilate) and SA (Stearic Acid) by variation of powder loading concentration. The rheology properties are investigated using Shimadzu Flowtester CFT-500D capillary rheometer. As the geometry of water atomised stainless steel powder are irregular shape, therefore it is expected significant changes in the rheological results that can influence the microcomponent, surface quality, shape retention and resolution capabilities. The optimization of the μMIM rheological properties as a function of stainless steel powder loading concentration are evaluated by flow behavior exponent, activation energy and moldability index. From the results, it shows that 61.5%vol contributes a significant stability over a range of temperature and the best powder loading from a critical powder volume percentage (CPVP) and rheological point of view.
| Original language | English |
|---|---|
| Title of host publication | Advanced Materials Research |
| Pages | 129-134 |
| Number of pages | 6 |
| Volume | 264-265 |
| DOIs | |
| Publication status | Published - 2011 |
| Event | International Conference on Advances in Materials and Processing Technologies, AMPT 2009 - Duration: 26 Oct 2009 → 29 Oct 2009 |
Publication series
| Name | Advanced Materials Research |
|---|---|
| Volume | 264-265 |
| ISSN (Print) | 10226680 |
Other
| Other | International Conference on Advances in Materials and Processing Technologies, AMPT 2009 |
|---|---|
| Period | 26/10/09 → 29/10/09 |
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Keywords
- Critical powder volume percentage
- Micro metal injection molding
- Rheological characteristics
- Water atomised SS 316L
ASJC Scopus subject areas
- Engineering(all)
Cite this
Rheological characterization of water atomised stainless steel SS316L for micro MIM. / Ibrahim, Mohd Halim Irwan; Muhamad, Norhamidi; Sulong, Abu Bakar.
Advanced Materials Research. Vol. 264-265 2011. p. 129-134 (Advanced Materials Research; Vol. 264-265).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Rheological characterization of water atomised stainless steel SS316L for micro MIM
AU - Ibrahim, Mohd Halim Irwan
AU - Muhamad, Norhamidi
AU - Sulong, Abu Bakar
PY - 2011
Y1 - 2011
N2 - This paper investigates the performance of feedstock characteristics for micro metal injection molding (μMIM) by using optimum power loading variation and rheologicalcharacterization. The study has been emphasized on the powder and binder system in which stainless steel SS316L powder are mixed with composite binder, which consists of PEG (Polyethelena Glycol), PMMA (Polymethyl Methacrilate) and SA (Stearic Acid) by variation of powder loading concentration. The rheology properties are investigated using Shimadzu Flowtester CFT-500D capillary rheometer. As the geometry of water atomised stainless steel powder are irregular shape, therefore it is expected significant changes in the rheological results that can influence the microcomponent, surface quality, shape retention and resolution capabilities. The optimization of the μMIM rheological properties as a function of stainless steel powder loading concentration are evaluated by flow behavior exponent, activation energy and moldability index. From the results, it shows that 61.5%vol contributes a significant stability over a range of temperature and the best powder loading from a critical powder volume percentage (CPVP) and rheological point of view.
AB - This paper investigates the performance of feedstock characteristics for micro metal injection molding (μMIM) by using optimum power loading variation and rheologicalcharacterization. The study has been emphasized on the powder and binder system in which stainless steel SS316L powder are mixed with composite binder, which consists of PEG (Polyethelena Glycol), PMMA (Polymethyl Methacrilate) and SA (Stearic Acid) by variation of powder loading concentration. The rheology properties are investigated using Shimadzu Flowtester CFT-500D capillary rheometer. As the geometry of water atomised stainless steel powder are irregular shape, therefore it is expected significant changes in the rheological results that can influence the microcomponent, surface quality, shape retention and resolution capabilities. The optimization of the μMIM rheological properties as a function of stainless steel powder loading concentration are evaluated by flow behavior exponent, activation energy and moldability index. From the results, it shows that 61.5%vol contributes a significant stability over a range of temperature and the best powder loading from a critical powder volume percentage (CPVP) and rheological point of view.
KW - Critical powder volume percentage
KW - Micro metal injection molding
KW - Rheological characteristics
KW - Water atomised SS 316L
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U2 - 10.4028/www.scientific.net/AMR.264-265.129
DO - 10.4028/www.scientific.net/AMR.264-265.129
M3 - Conference contribution
SN - 9783037850534
VL - 264-265
T3 - Advanced Materials Research
SP - 129
EP - 134
BT - Advanced Materials Research
ER -