Influence of Process Parameters and Alloy Composition on Crack Mitigation in Selective Laser Melting

Bey Vrancken | 18-ERD-057

Executive Summary

Our goal is to understand the causes of macro- and microcracks in manufactured parts that occur during the selective laser melting process by studying the relationship between the process parameters and the material properties of metal alloys. This project supports nuclear weapons stockpile stewardship missions by enabling the production of larger additively manufactured parts with improved structural integrity.

Publications and Presentations

Vrancken, B., et al., 2018. "High-Speed, In-Situ Monitoring of Microcracking of W for Different Scan Strategies." 2018 Annual International Solid Freeform Fabrication Symposium, Austin, TX, August 2018. LLNL-ABS-749591.

——— . 2018. "In-Situ Characterization of Tungsten Microcracking in Selective Laser Melting." 10th CIRP Conference on Photonic Technologies, Furth, Germany, September 2018. LLNL-CONF-748304.