About this Abstract |
| Meeting |
2025 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2025)
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| Symposium
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2025 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2025)
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| Presentation Title |
Temperature Sensor Comparison Study of Spot Pyrometers and Contact Thermocouples for Improved Thermal Monitoring of Wire-Arc DED |
| Author(s) |
Charlotte Thompson, Reid Schaff, Jeffery Logan Betts, Matthew W. Priddy |
| On-Site Speaker (Planned) |
Charlotte Thompson |
| Abstract Scope |
In arc-DED research, thermocouples are commonly used to monitor thermal history over the substrate and deposited surfaces, while pyrometers are typically used for instantaneous interlayer temperature measurements and interpass temperature estimation. However, the potential of spot pyrometers to serve as an alternative to K-type thermocouples for analyzing thermal histories has not been thoroughly explored. While thermocouples are most accepted for thermal cycle analysis, their accuracy is highly dependent on setup, and they can be time-consuming to install. In contrast, non-contact methods such as spot pyrometers offer faster, simpler integration with greater flexibility. This study evaluates the feasibility of using spot pyrometers to capture thermal history by comparing their measurements with various thermocouple configurations across different geometries produced using arc-DED with ER70S-6 wire and cold metal transfer (CMT). Data is collected in a synchronized, interoperable format using a previously developed in-situ monitoring framework built on Robot Operating System 2 (ROS 2). |
| Proceedings Inclusion? |
Planned: Post-meeting proceedings |