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Related Experiment Video

Updated: Nov 1, 2025

Additive Manufacturing of Functionally Graded Ceramic Materials by Stereolithography
06:53

Additive Manufacturing of Functionally Graded Ceramic Materials by Stereolithography

Published on: January 25, 2019

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A laboratory-scale binder jet additive manufacturing testbed for process exploration and material development.

Daniel Oropeza1, A John Hart1

  • 1Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139 USA.

The International Journal, Advanced Manufacturing Technology
|June 24, 2021
PubMed
Summary

This study details a new mechanized testbed for binder jet additive manufacturing (BJAM). The versatile system enables precise control over powder spreading and binder jetting for advanced material processing and research.

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Area of Science:

  • Materials Science
  • Mechanical Engineering
  • Additive Manufacturing

Background:

  • Binder jet additive manufacturing (BJAM) enables complex 3D component fabrication.
  • Robust process parameters require understanding powder spreading, powder-binder interactions, and post-processing.

Purpose of the Study:

  • To design, fabricate, and qualify a modular, mechanized testbed for BJAM.
  • To replicate commercial additive manufacturing equipment conditions.
  • To enable detailed study of BJAM fundamentals.

Main Methods:

  • Developed a programmable motion control system for powder spreading (precision roller) and binder jetting (inkjet printhead).
  • Integrated a vibrating hopper for controlled powder supply.
  • Utilized variable nozzle diameters and controlled jetting parameters.
Keywords:
Additive manufacturingbinder jettinginkjet printingprecision machine design

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Last Updated: Nov 1, 2025

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Main Results:

  • Successfully designed, fabricated, and qualified the mechanized BJAM testbed.
  • Validated the accuracy and repeatability of the machine and its subsystems.
  • Fabricated exemplary stainless steel components.

Conclusions:

  • The precision-engineered testbed facilitates in-depth study of BJAM processes.
  • Enables exploration of novel binder compositions and custom powders.
  • Supports advancement of scientific research and industrial applications of BJAM.