The Effect of Electron Beam Energy Density on Temperature Field for Electron Beam Melting

Yun Xia Chen; Xiao Jing Wang; Shan Ben Chen

doi:10.4028/www.scientific.net/AMR.900.631

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 900The Effect of Electron Beam Energy Density on...

The Effect of Electron Beam Energy Density on Temperature Field for Electron Beam Melting

Abstract:

Electron beam melting (EBM) is a relatively new rapid, additive manufacturing technology which can allow for the fabrication of complex, multi-functional metal or alloy monoliths by CAD-directed, selective melting of precursor powder beds. By altering the beam parameters and scan strategies, powder burn-through phenomena and uneven temperature field can be improved. In this paper the analyses for editable electron beam scanning track are presented based on the influence to the temperature field over the formation zone and the powder burn-through phenomena. The most promising strategy, non-uniform scanning mode for irregular scanning path, is approved by the ANSYS simulation and a two-dimensional scan experiment. The result shows non-uniform scanning mode can improve the uniformity of the temperature field and reduce the powder burn-through phenomena.

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Periodical:

Advanced Materials Research (Volume 900)

Pages:

631-638

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.900.631

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Online since:

February 2014

Authors:

Yun Xia Chen*, Xiao Jing Wang, Shan Ben Chen

Keywords:

Electron Beam Melting, Energy Density, Scan Strategy, Temperature Field

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