Designs and evaluations of a gas atomizer to fabricate stainless steel metal powder to be applied at a metal injection molding

Sugeng Supriadi, Tsaome Indah Susimah, Muhammad Haekal Sena Akbar, Bambang Suharno, Ario Sunar Baskoro, Dharmanto

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

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 <40 µm and have a spherical shape. The well rounded sphericity for melt flowrate 0.41x10-3 m3/min, 1.14 x10-3 m3/min, and 2.24x10-3 m3/min are 60.0%, 36.0%, and 55.2% respectively.

Original languageEnglish
Title of host publicationMaterial and Manufacturing Technology X
EditorsMohd Hamdi Bin Abdul Shukor, Mohd Hamdi Bin Abdul Shukor, Vladimir Khovaylo
PublisherTrans Tech Publications Ltd
Pages40-47
Number of pages8
ISBN (Print)9783035715064
DOIs
Publication statusPublished - 1 Jan 2020
Event10th International Conference on Material and Manufacturing Technology, ICMMT 2019 - Kuala Lumpur, Malaysia
Duration: 26 Apr 201928 Apr 2019

Publication series

NameKey Engineering Materials
Volume833 KEM
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Conference

Conference10th International Conference on Material and Manufacturing Technology, ICMMT 2019
Country/TerritoryMalaysia
CityKuala Lumpur
Period26/04/1928/04/19

Keywords

  • Free fall gas atomization
  • Melt flow rate
  • Metal injection molding
  • Stainless steel powder

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