Advanced process strategy to realize microducts free of powder using selective electron beam melting

Pobel C, Reichel S, Fu Z, Osmanlic F, Körner C (2019)


Publication Language: English

Publication Type: Journal article

Publication year: 2019

Journal

DOI: 10.1007/s00170-019-03615-3

Abstract

Selective electron beam melting (SEBM) is a powder bed–based additive manufacturing (AM) technology and allows the fabrication of complex metal components. However, the high building temperatures necessary for a stable process prohibit the fabrication of small internal features and intended cavities, e.g., for cooling purposes and heat exchangers. In this work, a novel scan strategy is used to seal prefabricated notches on the surface of Ti-6Al-4V substrates and to create microducts without applying additional materials. Influencing factors are identified and a process map for the SEBM sealing process is established. The impact of the determined strategy on the material properties regarding surface structure and composition is investigated. This sealing process can be followed by conventional SEBM-based additive manufacturing to build complex structures on the sealing layer due to its high flatness.


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APA:

Pobel, C., Reichel, S., Fu, Z., Osmanlic, F., & Körner, C. (2019). Advanced process strategy to realize microducts free of powder using selective electron beam melting. International Journal of Advanced Manufacturing Technology. https://dx.doi.org/10.1007/s00170-019-03615-3

MLA:

Pobel, Christoph, et al. "Advanced process strategy to realize microducts free of powder using selective electron beam melting." International Journal of Advanced Manufacturing Technology (2019).

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