The major interest in the field of Additive Layer Manufacturing is at present the emancipation from prototyping towards industrial production. To this aim, a significant limitation is still the difficulty in predicting part characteristics and ensure robustness and repeatability. Laser Consolidation (LC) is a powder-fed process producing net-shape metal components with good metallurgical soundness, high strength and duc-tility. The specific LC head configuration is likely to cause direction dependant features varying not only along and perpendicular to the build direction, but also within each layer. Aim of the research is to investigate the mechanical properties and microstructure of AISI 316L parts built by LC, with a specific focus on the ef-fects of the direction of build, either axially aligned with the head or orthogonal to it. The results confirmed high hardness and strength and excellent ductility of LC parts. Anisotropy of mechanical response was quanti-fied and related to microstructure.
The major interest in the field of Additive Layer Manufacturing is at present the emancipation from prototyping towards industrial production. To this aim, a significant limitation is still the difficulty in predicting part characteristics and ensure robustness and repeatability. Laser Consolidation (LC) is a powder-fed process producing net-shape metal components with good metallurgical soundness, high strength and ductility. The specific LC head configuration is likely to cause direction dependant features varying not only along and perpendicular to the build direction, but also within each layer. Aim of the research is to investigate the mechanical properties and microstructure of AISI 316L parts built by LC, with a specific focus on the effects of the direction of build, either axially aligned with the head or orthogonal to it. The results confirmed high hardness and strength and excellent ductility of LC parts. Anisotropy of mechanical response was quantified and related to microstructure. © 2010 Taylor & Francis Group.
On the effects of build orientation in powder-fed Additive Layer Manufacture of steel 316L / Bassoli, E.; Gatto, A.; Sewell, N. T.; Johns, D.. - STAMPA. - (2010), pp. 263-268. (Intervento presentato al convegno 4th International Conference on Advanced Research in Virtual and Physical Prototyping, VRAP 2009 tenutosi a Leiria, prt nel October 6-10 2009).
On the effects of build orientation in powder-fed Additive Layer Manufacture of steel 316L
Bassoli E.;Gatto A.;
2010
Abstract
The major interest in the field of Additive Layer Manufacturing is at present the emancipation from prototyping towards industrial production. To this aim, a significant limitation is still the difficulty in predicting part characteristics and ensure robustness and repeatability. Laser Consolidation (LC) is a powder-fed process producing net-shape metal components with good metallurgical soundness, high strength and ductility. The specific LC head configuration is likely to cause direction dependant features varying not only along and perpendicular to the build direction, but also within each layer. Aim of the research is to investigate the mechanical properties and microstructure of AISI 316L parts built by LC, with a specific focus on the effects of the direction of build, either axially aligned with the head or orthogonal to it. The results confirmed high hardness and strength and excellent ductility of LC parts. Anisotropy of mechanical response was quantified and related to microstructure. © 2010 Taylor & Francis Group.
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