In situ flaw detection by IR-imaging during electron beam melting

Schwerdtfeger J, Singer R, Körner C (2012)

Publication Language: English

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2012


Book Volume: 18

Pages Range: 259-263

Journal Issue: 4

DOI: 10.1108/13552541211231572


Purpose - The purpose of this paper is to investigate the possibility of in situ flaw detection for powder bed, beam-based additive manufacturing processes using a thermal imaging system. Design/methodology/approach - The authors compare infrared images (IR) which were taken during the generation of Ti-6Al-4V parts in a selective electron beam melting system (SEBM) with metallographic images taken from destructive material investigation. Findings - A good match is found between the IR images and the material flaws detected by metallographic techniques. Research limitations/implications - First results are presented here, mechanisms of flaw formation and transfer between build layers are not addressed in detail. Originality/value - This work has important implications for quality assurance in SEBM and rapid manufacturing in general. © Emerald Group Publishing Limited.

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Schwerdtfeger, J., Singer, R., & Körner, C. (2012). In situ flaw detection by IR-imaging during electron beam melting. Rapid Prototyping Journal, 18(4), 259-263.


Schwerdtfeger, Jan, Robert Singer, and Carolin Körner. "In situ flaw detection by IR-imaging during electron beam melting." Rapid Prototyping Journal 18.4 (2012): 259-263.

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