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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.



Subject Classifications

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

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