About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Presentation Title |
Design, Fabrication, and Validation of a Laboratory-scale Binder Jet Additive Manufacturing Testbed |
Author(s) |
Daniel Oropeza, Ricardo Roberts, John Hart |
On-Site Speaker (Planned) |
Daniel Oropeza |
Abstract Scope |
Understanding binder jetting additive manufacturing (BJAM) fundamentals, including spreading of thin powder layers, powder-binder interactions, and post-processing is critical to develop robust process parameters. Toward meeting these needs, the design, fabrication, and qualification of a BJAM testbed is presented. The testbed replicates 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 dispenser. The inkjet system allows for 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 BJAM stainless steel components are discussed. The precision engineered testbed can therefore enable the study of the BJAM process fundamentals, exploration of novel binder compositions, and processing of custom powders to further scientific research and industrial applicability of BJAM. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |