Monitoring of Single-Track Degradation in the Process of Selective Laser Melting

dc.creatorZhirnov, I.
dc.creatorDoubenskaia, M.
dc.creatorKotoban, D.
dc.date.accessioned2021-11-03T22:13:23Z
dc.date.available2021-11-03T22:13:23Z
dc.date.issued2017
dc.description.abstractSelective laser melting machines provide the optimal working parameters for manufacturing during the process. However, the laser interaction with metal powder is an unstable. The gasdynamic flows make powder particles move and escape from the melt pool. This phenomenon leads to an irregular distribution of the material volume being remelted. Since the energy is constant during the process, single-tracks with different geometry are appeared and their superposition forms the 3D-object. To detect the process abnormality of stable track formation there was developed a control system based on morphological analysis of thermal image obtained by IR-camera. The temperature field distribution along the image matrix’s row with the maximum temperature was used as influencing factor on stable track formation. Roughness was reduced from 39.9 to 6.6 µm by using control system with the same process parameters. The obtained results can be applied in industrial SLM machines with the integrated active control system.en_US
dc.description.departmentMechanical Engineeringen_US
dc.identifier.urihttps://hdl.handle.net/2152/89949
dc.language.isoengen_US
dc.publisherUniversity of Texas at Austinen_US
dc.relation.ispartof2017 International Solid Freeform Fabrication Symposiumen_US
dc.rights.restrictionOpenen_US
dc.subjectthermographic monitoringen_US
dc.subjectsingle-track degradationen_US
dc.subjectsingle-tracken_US
dc.subjectselective laser meltingen_US
dc.titleMonitoring of Single-Track Degradation in the Process of Selective Laser Meltingen_US
dc.typeConference paperen_US
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