| Abstract Scope |
Metal additive manufacturing (MAM) enables fabrication of complex geometries from a wide assortment of metals and alloys for both functional and structural applications. However, properties and performance can be affected in the as-fabricated components owing to processing defects. The focused moving heat source (e.g., laser) melts powder and builds up components a layer at a time. The high energy density heat input from the focused heat source competes with the rapid heat extraction in a bulk sample and the thermophysical properties of the deposited material. To predict effective process parameters to minimize processing defects such as porosity, a dimensional analysis will be defined that is readily validated with a high-throughput experimental strategy. The technique has been refined to include microstructure and property maps. A baseline study on a model system (316L stainless steel) as well as demonstration to a wide variety of metals, alloys, and MAM techniques will be presented. |