About this Abstract |
Meeting |
2021 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2021)
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Symposium
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Materials
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Presentation Title |
Increasing Productivity in Laser Powder Bed Fusion Additive Manufacturing of AlSi10Mg |
Author(s) |
Aidan Tomlin, Mark Mugavero, Brittany Urwin, Andrew Frost, Justen Schaefer, Joy Gockel |
On-Site Speaker (Planned) |
Joy Gockel |
Abstract Scope |
A process development concern in additive manufacturing is the ability to increase the productivity while maintaining a low level of defects. This work investigated processing parameters to balance print speed and porosity for laser powder bed fusion of AlSi10Mg. The processing parameters that influence the build speed are the laser speed, hatch spacing and layer thickness. Single bead analytical modeling and experiments were used to determine the influence of processing parameters (laser power and speed) on melt pool size, predict lack-of-fusion porosity, and guide component experiments. Design of experiments was used to investigate the effect of additional processing parameters (laser speed, hatch spacing, and layer thickness) on porosity. With the goal of decreasing build time, layer thicknesses of 80, 100, and 120 µm were used. The increased layer thickness, balanced with speed and hatch spacing, yields a significant increase in build speed from typical AlSi10Mg processing parameters. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |