Designs and Evaluations of a Gas Atomizer to Fabricate Stainless Steel Metal Powder to Be Applied at a Metal Injection Molding

Metal Injection Molding (MIM) is an application of Powder Metallurgy (PM) and Plastic Injection Molding currently being developed to produce precisely-small components. Most of the metal applications using PM are stainless steel fabricated by a gas atomizer. In this study, an atomizer is designed an...

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Published in:Key engineering materials 2020-03, Vol.833, p.40-47
Main Authors: Baskoro, Ario Sunar, Dharmanto, Dharmanto, Suharno, Bambang, Susimah, Tsaome Indah, Supriadi, Sugeng, Akbar, Muhammad Haekal Sena
Format: Article
Language:English
Subjects:
Atomizing
Austenitic stainless steels
Flow velocity
Free fall
Gas atomization
Gas pressure
Injection molding
Metal powders
Morphology
Powder metallurgy
Shape
Stainless steel
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description Metal Injection Molding (MIM) is an application of Powder Metallurgy (PM) and Plastic Injection Molding currently being developed to produce precisely-small components. Most of the metal applications using PM are stainless steel fabricated by a gas atomizer. In this study, an atomizer is designed and fabricated to produce stainless steel powder by using a free fall gas atomization method. The stainless steel used in this study is AISI 304 atomized with the diameter sizes varying from about 3 mm, 5 mm, and 7 mm. The variables of diameter size results are the lowest melt flow rate produces the smallest mean diameter, but no significant difference on the sphericity of powder morphology. While the gas pressure variation results shows that metal powder with smaller size will be produced more using the high gas pressure. The gas atomizer have successfully produced metal powder with the size
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subjects Atomizing
Austenitic stainless steels
Flow velocity
Free fall
Gas atomization
Gas pressure
Injection molding
Metal powders
Morphology
Powder metallurgy
Shape
Stainless steel
title Designs and Evaluations of a Gas Atomizer to Fabricate Stainless Steel Metal Powder to Be Applied at a Metal Injection Molding
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