|About this Abstract
||2023 TMS Annual Meeting & Exhibition
||2023 Technical Division Student Poster Contest
||SPG-36: On the Influence of Gaussian and Ring-shaped Beam Profiles on Quality and Energy Consumption in L-PBF of Inconel 718
||Ersilia Cozzolino, Austin Tiley, Edward D. Herderick
|On-Site Speaker (Planned)
Additive Manufacturing (AM) has the potential for improving the sustainability of metal processing through decreased energy and materials usage compared to casting and forging. Laser powder bed fusion (L-PBF) of high-temperature alloys such as nickel alloy 718 is one of the key modalities supporting this effort. One of the major drawbacks to L-PBF is its slow build speed on the order of 5-10 cubic centimeters per hour print speed. Our team is investigating speeding up L-PBF printing 10x by switching from a traditional Gaussian laser shape to a ring laser shape using a nLight multi-modal laser. The objective is to increase productivity dramatically while only marginally increasing energy consumption by switching to the ring laser thereby improving the sustainability of L-PBF. Results include measuring the energy consumption of an Open Additive L-PBF system during the Inconel 718 printing and comparing the microstructure and mechanical properties of the two different lasers.
||Additive Manufacturing, Sustainability, Copper / Nickel / Cobalt