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June 13, 2026Rapid Prototyping Journal

Effect of processing parameters on the porosity of SS 420 green parts fabricated by binder jet additive manufacturing

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Authors

RKReshma KubsadYWYuxuan WuYZYue Zhou

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Overview

Randomized trial examines porosity in stainless steel 420 parts, highlighting key factors for improvement.

Key Points

  • This research aims to investigate the impact of various processing parameters on the porosity of stainless steel 420 green parts made via binder jet additive manufacturing.
  • Quantified porosity using bulk density and microscopy analysis.
  • Conducted discrete element method (DEM) simulations with a full-factorial sweep of 11,000 cases to analyze trends and interactions.
  • Ranked the importance of processing parameters influencing porosity.
  • Found a porosity minimum at intermediate roller traverse speed and increased porosity with greater layer thickness.
  • Demonstrated a modest densification benefit at mid-range roller rotation speeds.
  • Identified layer thickness and roller traverse speed as the most influential factors on porosity.

Cite This Study

Kubsad et al. (2026) studied this question.

synapsesocial.com/papers/6a2cf6d7faef96ed7f0587fdhttps://doi.org/10.1108/rpj-11-2025-0602
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