{"690862":{"#nid":"690862","#data":{"type":"event","title":"PhD Defense by Kathryn Kelly","body":[{"value":"\u003Cp\u003E\u003Cstrong\u003ETitle\u003C\/strong\u003E: Trajectory Optimization Based on Thermal Data in a Robotic Wire-Arc Additive Manufacturing System\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EDate\u003C\/strong\u003E: Tuesday, July 14th, 2026\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ETime\u003C\/strong\u003E: 12PM to 2PM ET\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ELocation\u003C\/strong\u003E: GTMI 114 or \u003Ca href=\u0022https:\/\/teams.microsoft.com\/meet\/295036480812932?p=UdxsMWa0w1UvD7hhRU\u0022 title=\u0022https:\/\/teams.microsoft.com\/meet\/295036480812932?p=UdxsMWa0w1UvD7hhRU\u0022\u003Evia Teams\u003C\/a\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EKathryn Kelly\u003C\/strong\u003E\u003C\/p\u003E\u003Cp\u003ERobotics Ph.D. Student\u003C\/p\u003E\u003Cp\u003EWoodruff School of Mechanical Engineering\u003C\/p\u003E\u003Cp\u003EGeorgia Institute of Technology\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003ECommittee\u003C\/strong\u003E:\u003C\/p\u003E\u003Cp\u003EDr. Christopher Salda\u00f1a (advisor) -- George W. Woodruff School of Mechanical Engineering\u003C\/p\u003E\u003Cp\u003EDr. Thomas Kurfess -- George W. Woodruff School of Mechanical Engineering\u003C\/p\u003E\u003Cp\u003EDr. Shreyes Melkote -- George W. Woodruff School of Mechanical Engineering\u003C\/p\u003E\u003Cp\u003EDr. Kyle Saleeby -- Georgia Tech Manufacturing Institute\u003C\/p\u003E\u003Cp\u003EDr. Sean Wilson -- Georgia Tech Research Institute\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EAbstract\u003C\/strong\u003E:\u003C\/p\u003E\u003Cp\u003EWire-arc additive manufacturing has been widely studied in the pursuit of large-scale metal additive processes. Compared to other additive methods that deposit material at grams-per-hour, wire-arc can deposit material at kilograms-per-hour. The addition of a robot manipulator allows for the development of more complex and much larger geometries than traditional machining platforms. When depositing large amounts of material, many variables become more critical to the process effecting final product quality. Many of these variables, such as heat input, are directly controlled by the thermal properties fo the material selected. While trajectories for robotic additive manufacturing have been studied, the design of optimal trajectories that prioritize local thermomechanical conditions are not as well understood. This dissertation aims to address this gap through: (1) exploration of the efficacy of intersecting path-plan strategies for the infill of wire-arc parts, (2) investigating the impact of various intersecting path-plan strategies on thermomechanical response and part quality, and (3) studying how these strategies might be implemented for closed-loop online control algorithms. This work is impactful in providing new tools and methods for manufacturing process developers to optimize trajectories that enable deposition during the cooling process, while reducing thermal gradients and improving geometric accuracy and surface finish. Most importantly, it reduces the time needed to print large-scale components over current robotic additive methods. \u0026nbsp;\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003ETrajectory Optimization Based on Thermal Data in a Robotic Wire-Arc Additive Manufacturing System\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"Trajectory Optimization Based on Thermal Data in a Robotic Wire-Arc Additive Manufacturing System"}],"uid":"27707","created_gmt":"2026-06-22 17:33:40","changed_gmt":"2026-06-22 17:34:10","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2026-07-14T12:00:00-04:00","event_time_end":"2026-07-14T14:00:55-04:00","event_time_end_last":"2026-07-14T14:00:55-04:00","gmt_time_start":"2026-07-14 16:00:00","gmt_time_end":"2026-07-14 18:00:55","gmt_time_end_last":"2026-07-14 18:00:55","rrule":null,"timezone":"America\/New_York"},"location":" GTMI 114 or via Teams  ","extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"100811","name":"Phd Defense"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78771","name":"Public"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}