Effects of Thermal Camera Resolution on Feature Extraction in Selective Laser Melting

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dc.creatorWang, Xin
dc.creatorLough, Cody S.
dc.creatorBristow, Douglas A.
dc.creatorLanders, Robert G.
dc.creatorKinzel, Edward C.
dc.date.accessioned2021-11-09T14:51:33Z
dc.date.available2021-11-09T14:51:33Z
dc.date.issued2018
dc.description.abstractSelective Laser Melting (SLM) is a common additive manufacturing process which uses a laser energy source to fuse metal powder layer by layer. Engineering properties and microstructure are related to the part’s thermal history. It is important to measure the thermal history in-situ to qualify parts and provide the sensing which is necessary for process control. A common measurement tool for this purpose is a thermal camera that records the thermal emission of the part’s surface. This study investigates the effects of spatial sampling resolution of thermal cameras when monitoring the temperature in SLM processes. High-fidelity simulation of an SLM process is used to quantify the effects of the camera’s sampling in space. Next, the effect that spatial resolutions have on feature extraction, namely peak temperature and melt pool morphology, is investigated by applying feature extraction methodologies to the down-sampled simulation data. Finally, some methods of refining the down-sampled data are applied and their effects are discussed.en_US
dc.description.departmentMechanical Engineeringen_US
dc.identifier.urihttps://hdl.handle.net/2152/90086
dc.identifier.urihttp://dx.doi.org/10.26153/tsw/17007
dc.language.isoengen_US
dc.publisherUniversity of Texas at Austinen_US
dc.relation.ispartof2018 International Solid Freeform Fabrication Symposiumen_US
dc.rights.restrictionOpenen_US
dc.subjectspatial sampling resolutionen_US
dc.subjectthermal cameraen_US
dc.subjecttemperature monitoringen_US
dc.subjectfeature extractsen_US
dc.subjectselective laser meltingen_US
dc.titleEffects of Thermal Camera Resolution on Feature Extraction in Selective Laser Meltingen_US
dc.typeConference paperen_US

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2018 International Solid Freeform Fabrication Symposium