Selective laser melting process monitoring by means of thermography
2018 (English)In: Euro PM 2018 Congress and Exhibition, European Powder Metallurgy Association (EPMA) , 2018Conference paper, Published paper (Refereed)
Abstract [en]
Selective Laser Melting (SLM) enables production of highly intricate components. From this point of view, the capabilities of this technology are known to the industry and have been demonstrated in numerous applications. Nonetheless, for serial production purposes the manufacturing industry has so far been reluctant in substituting its conventional methods with SLM. One underlying reason is the lack of simple and reliable process monitoring methods. This study examines the feasibility of using thermography for process monitoring. To this end, a thermal infrared (IR) camera was mounted off-axis to monitor and record the temperature of every layer. The recorded temperature curves are analysed and interpreted with respect to different stages of the process. Furthermore, the possibility of detecting variations in laser settings by means of thermography is demonstrated. The results show that once thermal patterns are identified, this data can be utilized for in-process and post-process monitoring of SLM production.
Place, publisher, year, edition, pages
European Powder Metallurgy Association (EPMA) , 2018.
Keywords [en]
Melting, Powder metallurgy, Process control, Process monitoring, Thermography (imaging), Conventional methods, Different stages, Manufacturing industries, Selective laser melting (SLM), Serial production, Temperature curves, Thermal infrared, Thermal patterns, Selective laser melting
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-44195Scopus ID: 2-s2.0-85084164758ISBN: 9781899072507 (print)OAI: oai:DiVA.org:ri-44195DiVA, id: diva2:1396898
Conference
European Powder Metallurgy Congress and Exhibition, Euro PM 2018, 14 October 2018 through 18 October 2018
Note
Funding details: 2016-04486; Funding text 1: The work has been performed with support from the Swedish Systems, grant number 2016-04486.
2020-02-262020-02-262020-05-25Bibliographically approved