About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Symposium
|
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Presentation Title |
Process Development and Thermomechanical Modeling of Laser Hot Wire Additive Manufacturing Process |
Author(s) |
Elizabeth Chang-Davidson, Brandon Abranovic, Jack Beuth |
On-Site Speaker (Planned) |
Elizabeth Chang-Davidson |
Abstract Scope |
Laser hot wire additive manufacturing (LHWAM) is a relatively unexplored process within the space of DED metal additive manufacturing that provides unique benefits relative to other DED processes, in terms of better deposited bead quality than many non-laser-based processes and higher deposition rates than other laser-based processes. In this work, process development was completed on a LHWAM machine manufactured by Lincoln Electric, starting with process mapping of common flaw types through the multidimensional process space, as well as a flaw type unique to this process. Subsequently, optimization of deposition strategies was accomplished through thermal modeling for thin wall parts as well as axisymmetric parts. Thermomechanical modeling was carried out to support the printing of large-scale test parts, which are especially susceptible to undesirable deformation. At the culmination of the project, several complex large-scale geometries were successfully printed. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |