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)
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Presentation Title |
Support-free Sintering of 3D Printed Binder Jet Copper Parts and Stainless Steel Parts
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Author(s) |
John Samuel Dilip Jangam, Thomas Anthony, Ben Pon, Jake Piderman, Jim McKinnell, Lihua Zhao |
On-Site Speaker (Planned) |
John Samuel Dilip Jangam |
Abstract Scope |
Binder jet additive manufacturing involves selectively applying a binder layer-by-layer to produce green parts, and subsequently followed by a high temperature sintering treatment. During sintering, the green parts inherently prone to undesired part deformation/sag in unsupported regions. Traditional methods use 3D printed supports or machined ceramic setters to avoid the part deformation/sag during sintering. In this work, we introduce shape-retaining-stimulus coating that will mitigate/eliminate the need of additional supports during sintering. Green parts made in copper and stainless steel in simply supported configuration with different thickness were evaluated for part deformation/sag. Our experimental results demonstrate with selective application of the shape-retainng-stimulus coating on the binder jet printed copper and stainless steel parts with a span upto 50 mm, and 25 mm, respectively, can be sintered without auxillary supports. Our shape-retaining-stimulus coating not only produces expectional results but also the ease of its removal makes it an attractive candidate. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |
Keywords |
Biomaterials, |