| About this Abstract |
| Meeting |
Materials Science & Technology 2019
|
| Symposium
|
Additive Manufacturing: Effective Production, Characterization, and Recycling of Powder Materials
|
| Presentation Title |
Metal Particulate Produced by Modulation-assisted Machining |
| Author(s) |
Indrani Biswas, Stiven Puentes, James Mann, Srinivasan Chandrasekar, Kevin P. Trumble |
| On-Site Speaker (Planned) |
Kevin P. Trumble |
| Abstract Scope |
Superimposition of a controlled, low-frequency modulation in conventional machining causes chips to form as discrete particles of controllable shape and size, and with very narrow size distribution. This modulation-assisted machining (MAM) process is applicable to produce powders directly from most any machinable alloy, with identical composition to the workpiece and only native oxide contamination. Concurrent large-strain deformation leads to microstructure refinement within the particles and associated hardness (strength) enhancements. Microstructural studies on strain homogeneity and shape development in short fiber particles of Al 6061-T6 produced under plane-strain conditions are presented. Flowability of the short fiber powders with varying particle size and aspect ratio has also been studied. A first-order process economics analysis and prospects for scaling MAM to commercial production are discussed. |
| Proceedings Inclusion? |
Planned: At-meeting proceedings |