Abstract
Electron beam melting (EBM) is one of the powder bed fusion (PBF) processes, and it is characterized by the usage of an electron beam as a heat source. In this process, an electron beam is precisely controlled with high-speed scanning. This scanning is also utilized to preheat the powder bed for the regression of thermal stress during building. The building is performed in a vacuum, so that oxidation can be minimized. Thus, the PBF-EB process is preferable for building reactive metals as a matrix or second phase. In contrast, the relatively rough surface due to the use of large powder and the raveling of sintered powder remain issues with this process. Herein, the trend of research and development of PBF-EB is reviewed from the scientific papers published from 2007 to 2016.
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Nomura, N. (2021). Current Research and Development. In: Kirihara, S., Nakata, K. (eds) Multi-dimensional Additive Manufacturing. Springer, Singapore. https://doi.org/10.1007/978-981-15-7910-3_4
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DOI: https://doi.org/10.1007/978-981-15-7910-3_4
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