Formation and reduction of hydrogen porosity during selective laser melting of AlSi10Mg

• Published in: Journal of materials processing technology Vol. 221; pp. 112 - 120
• Main Authors: Weingarten, Christian, Buchbinder, Damien, Pirch, Norbert, Meiners, Wilhelm, Wissenbach, Konrad, Poprawe, Reinhart
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.07.2015
• Subjects: Accumulation; Aluminum; Density; Drying; Hydrogen; Laser beam melting; Mechanical properties; Porosity; Process parameters; Rapid solidification; Selective laser melting; Porosity; Selective laser melting; Aluminum; Hydrogen; Rapid solidification

This study shows that the hydrogen porosity in AlSi10Mg parts built up with selective laser melting (SLM) can be lowered by efficient drying of the powder as well as by the modification of the process parameters. Complex structural and functional parts can be made of AlSi10Mg by SLM. Many previous i...