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Molten aluminum poured over 3D-printed steel lattice multiplies damage tolerance
July 12, 2017
Source: ASM International
Oak Ridge National Laboratory, Tenn., and Rice University, Houston, report that a new manufacturing method developed by Oak Ridge and Rice combines 3D printing with traditional casting to produce damage-tolerant components composed of multiple materials. Engineers discovered that by pouring molten aluminum over a 3D printed steel lattice, the damage tolerance of the part increases by an order of magnitude over aluminum.
The process, published in Materials and Design, was developed for potential automotive and other applications for which thermal and mechanical properties must be optimized simultaneously.
"This scalable processing strategy can be used to fulfill specific component functions, giving materials designers unprecedented control over both microstructure and material properties," says ORNL's Amit Shyam.
Industries and Applications | Aerospace and Defense
Materials Processing and Treatment | Additive Manufacturing
Materials Processing and Treatment | Casting
Metals and Alloys | Aluminum
Metals and Alloys | Carbon and Alloy Steels