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ASTM Selected Technical Papers
Progress in Additive Manufacturing 2020
By
Nima Shamsaei,
Nima Shamsaei
Symposium Chair and STP Editor
1
Auburn University
, Auburn, AL,
US
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Mohsen Seifi
Mohsen Seifi
Symposium Chair and STP Editor
2
ASTM International
, Washington, DC,
US
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ISBN:
978-0-8031-7721-5
No. of Pages:
432
Publisher:
ASTM International
Publication date:
2022
eBook Chapter
Aspects of Sinter-Cracking in Binder Jet 3D Printed Parts
By
Joseph Reid Carazzone
Joseph Reid Carazzone
1
Dept. of Materials Science and Nanoengineering
, 6100 Main St., MS 325, Rice University, Houston, TX 77005,
US
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Page Count:
13
-
Published:2022
Citation
Carazzone, JR. "Aspects of Sinter-Cracking in Binder Jet 3D Printed Parts." Progress in Additive Manufacturing 2020. Ed. Shamsaei, N, & Seifi, M. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959 : ASTM International, 2022.
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Binder jet three-dimensional (3D) printing is a scalable, potentially low-cost additive manufacturing route able to process materials not attainable to other techniques, especially nonweldable materials. It relies on postprocess sintering to achieve final properties but encounters problems with distortion and cracking during sintering. The present work seeks to understand how part design geometry and 3D printing build orientation influence cracking during sintering, with the goal of mitigating the problem. In situ monitoring experiments reveal how sinter-cracks initiate and grow in 3D-printed notched panel specimens during densification. Different design geometries and build directions are tested to identify sinter-crack-resistant regimes.
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