Authors
Adriaan B Spierings, Karl Dawson, Mark Voegtlin, Frank Palm, Peter J Uggowitzer
Publication date
2016/1/1
Journal
Cirp Annals
Volume
65
Issue
1
Pages
213-216
Publisher
Elsevier
Description
Additive manufacturing (AM) offers significant benefits towards optimized lightweight structures for aircraft and space applications. High-strength aluminium alloys are of special interest to reach a maximum mass reduction. The paper presents the development of appropriate selective laser melting (SLM) processing windows for a scandium modified aluminium alloy (Scalmalloy®), reaching densities >99%. The mechanical properties of as-processed material are analyzed, pointing out a comparably low anisotropy with regard to the build orientation. A fine-grained microstructure is observed next to regions of coarser, elongated grains. The paper discusses the observed microstructure, and concludes with suggestions for innovative material design for AM.
Scholar articles
AB Spierings, K Dawson, M Voegtlin, F Palm… - Cirp Annals, 2016