Next Article in Journal
Freezing and Thawing Resistance of Fine Recycled Concrete Aggregate (FRCA) Mixtures Designed with Distinct Techniques
Previous Article in Journal
Study on the Shear Modulus Based Equivalent Homogenization Methods of Multi-Layer BCC Lattice Sandwich
Previous Article in Special Issue
Review of Aluminum Alloy Development for Wire Arc Additive Manufacturing
Article

Developing Fused Deposition Modeling Additive Manufacturing Processing Strategies for Aluminum Alloy 7075: Sample Preparation and Metallographic Characterization

1
Department of Mechanical and Industrial Engineering, Louisiana State University, Baton Rouge, LA 70803, USA
2
Department of Mechanical Engineering, The University of Louisiana at Lafayette, Lafayette, LA 70503, USA
3
Department of Mechanical Engineering, The University of Alabama, Tuscaloosa, AL 35487, USA
*
Author to whom correspondence should be addressed.
Academic Editors: Paolo Mengucci and Eleonora Santecchia
Materials 2022, 15(4), 1340; https://doi.org/10.3390/ma15041340
Received: 17 December 2021 / Revised: 26 January 2022 / Accepted: 8 February 2022 / Published: 11 February 2022
(This article belongs to the Special Issue New Advances in Light Metal Alloys for Additive Manufacturing)
Currently, no commercial aluminum 7000 series filaments are available for making aluminum parts using fused deposition modeling (FDM)-based additive manufacturing (AM). The key technical challenge associated with the FDM of aluminum alloy parts is consolidating the loosely packed alloy powders in the brown-body, separated by thin layers of surface oxides and polymer binders, into a dense structure. Classical pressing and sintering-based powder metallurgy (P/M) technologies are employed in this study to assist the development of FDM processing strategies for making strong Al7075 AM parts. Relevant FDM processing strategies, including green-body/brown-body formation and the sintering processes, are examined. The microstructures of the P/M-prepared, FDM-like Al7075 specimens are analyzed and compared with commercially available FDM 17-4 steel specimens. We explored the polymer removal and sintering strategies to minimize the pores of FDM-Al7075-sintered parts. Furthermore, the mechanisms that govern the sintering process are discussed. View Full-Text
Keywords: aluminum alloy 7075; powder metallurgy; fused deposition modeling; wet-mixing; sintering aluminum alloy 7075; powder metallurgy; fused deposition modeling; wet-mixing; sintering
Show Figures

Figure 1

MDPI and ACS Style

Ding, H.; Zeng, C.; Raush, J.; Momeni, K.; Guo, S. Developing Fused Deposition Modeling Additive Manufacturing Processing Strategies for Aluminum Alloy 7075: Sample Preparation and Metallographic Characterization. Materials 2022, 15, 1340. https://doi.org/10.3390/ma15041340

AMA Style

Ding H, Zeng C, Raush J, Momeni K, Guo S. Developing Fused Deposition Modeling Additive Manufacturing Processing Strategies for Aluminum Alloy 7075: Sample Preparation and Metallographic Characterization. Materials. 2022; 15(4):1340. https://doi.org/10.3390/ma15041340

Chicago/Turabian Style

Ding, Huan, Congyuan Zeng, Jonathan Raush, Kasra Momeni, and Shengmin Guo. 2022. "Developing Fused Deposition Modeling Additive Manufacturing Processing Strategies for Aluminum Alloy 7075: Sample Preparation and Metallographic Characterization" Materials 15, no. 4: 1340. https://doi.org/10.3390/ma15041340

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop