|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||General Poster Session
||O-30: In-process Microstructure Tuning in Solid-state Ambient Condition Metal Additive Manufacturing
||Anagh Deshpande, Keng Hsu
|On-Site Speaker (Planned)
Acoustoplastic metal direct-write (AMD) is a recently demonstrated solid-state additive manufacturing process which uses acoustic energy to deposit voxels of metal to construct 3D-geometries in ambient condition and at room temperature. During the process, each voxel is deformed under the presence of acoustic energy and simultaneously bonded to the lower layer or the substrate. Acoustic energy induced softening, a phenomenon well documented in the literature, reduces the stresses required for deformation of the voxels. The dynamic recovery associated with acoustic softening enables formation of subgrains in the deformed voxels. The size of these subgrains can be manipulated by changing the acoustic energy density and strain rate during deformation. This allows in-process microstructure tuning during fabrication using AMD process. In this poster, study of the correlation between the microstructure and process parameters like strain-rate and acoustic energy density will be presented.
||Planned: Supplemental Proceedings volume