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About this Abstract
Meeting 2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
Symposium 2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
Presentation Title Development of a Hot-Forging Wire-Arc Additive Manufacturing Tool
Author(s) John P. Greene, Bradley Jared, Tyler Woodard, Colby Hale
On-Site Speaker (Planned) John P. Greene
Abstract Scope Hot-forging wire-arc additive manufacturing (HF-WAAM) combines traditional wire arc additive (WAAM) processes and high-temperature deformation with the intention of improving the material variability and suboptimal microstructures associated with WAAM deposits. In this work, the design and fabrication of the HF-WAAM tool are presented. A pneumatic hammering system is developed and added to a custom 3-axis WAAM machine tool. The system applies in-situ deformation close to the hot, deposited weld bead with the intention of refining the part microstructure, decreasing porosity, and improving material properties. Samples are produced in ER70S-6 steel and are characterized to evaluate the impact of in-situ deformation on the WAAM process. Work will also be discussed to examine and quantify the resulting deposited material’s consistency, geometry, microstructure and properties.
Proceedings Inclusion? Undecided

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