Slip characterization of powder/binder mixtures and its significance in the filling process analysis of powder injection molding

1995 ◽  
Vol 85 (1) ◽  
pp. 45-55 ◽  
Author(s):  
T.H. Kwon ◽  
S.Y. Ahn
Keyword(s):  
Injection Molding ◽  
Process Analysis ◽  
Powder Injection Molding ◽  
Powder Injection ◽  
Filling Process

Preparation and characterization of micro components fabricated by micro powder injection molding

2011 ◽  
Vol 62 (6) ◽  
pp. 615-620 ◽  
Author(s):  
L. Liu ◽  
N.H. Loh ◽  
B.Y. Tay ◽  
S.B. Tor ◽  
H.Q. Yin ◽  
...  
Keyword(s):  
Injection Molding ◽  
Powder Injection Molding ◽  
Powder Injection

Characterization of Feedstocks for Injection Molded SiCp-Reinforced Al-4.5 wt.%Cu Composite

2011 ◽  
Vol 383-390 ◽  
pp. 3234-3240 ◽  
Author(s):  
Tapany Udomphol ◽  
Benchawan Inpanya ◽  
Nutthita Chuankrerkkul
Keyword(s):  
Injection Molding ◽  
Powder Injection Molding ◽  
Powder Injection ◽  
Solid Loading ◽  
Aluminium Powder ◽  
Twin Screw ◽  
Injection Molded ◽  
Hardness Values ◽  
Potential Use

Characterization of feedstocks for powder injection molding of SiCp-reinforced aluminium composite, as potential use for automotive and light-weight applications, has been studied in this research. Al-4.5 wt.% Cu powder, SiCp and polymeric binder were pre-mixed and compounded using a twin screw extruder at 170oC prior to powder injection molding at 170 oC. Effects of varied solid loadings at 52, 55 and 58% on green properties of the feedstocks have been investigated. Experimental results showed that compounding followed by powder injection molding allowed uniform distribution of SiCp surrounding the aluminium powder. It was found that higher solid loading improved bulk density while hardness values were observed to be similar. Molded specimens of 55% solid loading provided the optimum bend strength and strain at failure. Moreover, it was observed that the opposing abrasive property with angular shape of SiCp resulted in SiCp scratching effect, leading to irregular surface of aluminium powder after injection molding. This consequence and molding porosity were expected to be responsible for relatively low density of the molded specimens, giving the difficulty in molding at higher solid loading.

Mixing and characterization of feedstock for powder injection molding

2000 ◽  
Vol 46 (2-3) ◽  
pp. 109-114 ◽  
Author(s):  
R Supati ◽  
N.H Loh ◽  
K.A Khor ◽  
S.B Tor
Keyword(s):  
Injection Molding ◽  
Powder Injection Molding ◽  
Powder Injection
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