About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Presentation Title |
Key Variables in Toolpath Generation for Wire-Arc Additive Manufacturing |
Author(s) |
Luke Meyer, Lai Canhai, Derek Vaughan, Chris Masuo, Alex Walters, Bill Carter, Mark Noakes, Andrzej Nycz |
On-Site Speaker (Planned) |
Luke Meyer |
Abstract Scope |
Creating large-scale metal parts using wire-arc additive manufacturing typically entails creating a 3-dimensional model of a part, distilling this model down to a series of 2-dimensional cross sections or “layers,” then using these cross sections to create toolpaths for a machine to read and ultimately build the desired part. The process of creating cross sections and toolpaths, termed “slicing,” is dependent on each layer being almost perfectly flat during printing to create a part with successfully stacked layers, reasonable dimensional accuracy, and a lack of voids or inclusions. Often overlooked, choices made during toolpath generation determine the quality of a printed part through variables such as bead spacing, number of concentric loops around the perimeter, direction of printing, start position, and use of infill paths. In this analysis, selected toolpath generation variables will be detailed with representative printed examples and recommendations for a successful additively manufactured part. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |