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A laboratory-scale binder jet additive manufacturing testbed for process exploration and material development
Name
170_2021_7123_ReferencePDF.pdf
Size
3.1 MB
Format
Adobe PDF
Checksum (MD5)
c4a6f9cdd5d8ee3a960e50b63b0007d7
Author(s)
Oropeza, Daniel
Hart, A. J.
Date Issued
April 26, 2021
Publisher
Springer London
Citation
Oropeza, Daniel and Hart, A. J. 2021. "A laboratory-scale binder jet additive manufacturing testbed for process exploration and material development."
Version
Author's final manuscript
Abstract
Abstract
Binder jet additive manufacturing (BJAM) is capable of fabricating complex three-dimensional components from a variety of material classes. Understanding the fundamentals of BJAM, including spreading of thin layers of powder, powder-binder interactions, and post-processing is critical to develop robust process parameters for BJAM. Toward meeting these needs, this work presents the design, fabrication, and qualification of a testbed for modular, mechanized, BJAM. The testbed seeks to replicate the operating conditions of commercial AM equipment and features fully programmable motion control including powder spreading using a precision roller mechanism, powder supply via a vibrating hopper, and gantry positioning of an inkjet printhead. The inkjet deposition system allows for the use of variable nozzle diameters, the exploration of novel binder compositions, and full control of jetting parameters. Validation of the accuracy and repeatability of the machine and its subsystems, as well as the fabrication of exemplary stainless steel components, are described. The precision engineered testbed can therefore enable the study of the BJAM process, exploration of novel binder compositions, and processing of custom powders to further scientific research and industrial applicability of BJAM.
Graphical Abstract
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike
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DOI of Published Version
https://doi.org/10.1007/s00170-021-07123-1
