Powder Bed Defects Classification: An Industry Perspective Francois Du Rand, Malan Van Tonder, Andre Van Der Merwe, Olaf Diegel, Devon Hagedorn-Hansen, Ian Campbell and Ian Gibson MATEC Web Conf., 370 (2022) 06003 Published online: 01 December 2022 DOI: 10.1051/matecconf/202237006003