| About this Abstract |
| Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
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| Symposium
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2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Presentation Title |
Experimental and Finite Element Comparison of 3-axis and 5-axis Wire Arc Directed Energy Deposition |
| Author(s) |
Matthew A. Register, Ryan M Stokes, J Logan Betts, Liv S Russell, Matthew W Priddy |
| On-Site Speaker (Planned) |
Matthew A. Register |
| Abstract Scope |
Wire arc directed energy deposition (WA-DED) is a metal additive manufacturing (AM) process that utilizes an electric arc heat source to melt wire in a layer-by-layer fashion. Unlike traditional AM, the WA-DED process has six axes of rotation, allowing geometrically complex parts to be built without the need of support structures. However, it is not well understood how the thermal history may change as an effect of multi-axis toolpaths, thus also affecting the resultant mechanical properties. This work examines the variation in temperature history, residual stress, and distortion between 3- and 5-axis toolpaths for the same geometry using an experimental and computational approach. Using finite element (FE) thermo-mechanical modeling, the nodal temperature history was compared with thermocouples on the substrate and infrared camera data near the melt pool to validate the FE thermal response. Deflection experimental measurements were collected with a laser profilometer for FE mechanical model validation. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |