High Value Manufacturing – Bártolo et al. (Eds)
© 2014 Taylor & Francis Group, London, ISBN 978-1-138-00137-4
Effect of laser beam profile on melt track in Selective Laser Melting
L.E. Loh, Z.H. Liu, D.Q. Zhang, W.Y. Yeong & C.K. Chua
School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore
ABSTRACT: The effect of laser beam profile on the melt width and melt penetration of the molten material in
Selective Laser Melting (SLM) using aluminium alloy 6061 (AA6061) was investigated. For the Gaussian laser
beam, the melt width and melt penetration increased by 54.9 ± 39.22 µm and 8.1 ± 59.4 µm respectively when
laser power was increased by 50 W, reduced by 35.3 ± 54.91 µm and increased by 7.1 ± 39.5 µm respectively
when ...