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Build-up strategies for generating components of cylindrical shape with laser metal deposition

 
: Petrat, Torsten; Graf, Benjamin; Gumenyuk, Andrey; Rethmeier, Michael

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Volltext (PDF; )

Wissenschaftliche Gesellschaft Lasertechnik -WLT-:
International Conference on Lasers in Manufacturing, LIM 2015. Book of Abstracts : Munich, 22 - 25 June 2015
Munich, 2015
S.61
International Conference on Lasers in Manufacturing (LIM) <2015, Munich>
Englisch
Abstract, Elektronische Publikation
Fraunhofer IPK ()

Abstract
Laser Metal Deposition (LMD) as additive manufacturing process offers the potential to produce near net shape components. This reduces the amount of material and post-processing. The components are composed of individual layers. Already small irregularities within a layer can add up over multiple layers and lead to error propagation. This paper deals with the issue of build-up strategies to minimize irregularities and prevent error propagation. Different travel paths and the influence of a changing starting point regarding to error propagation are discussed. Different deposition rates between core and peripheral area are detected and successfully compensated by adjusting the buildup sequence. Stainless steel and titanium alloy Ti-6Al-4V are used in the experiments. The results are intended to illustrate the potential of an adjusted build-up strategy and provide basic information on the way to an automated deposition process. This paper is of interest for engineers in industry or science using LMD as additive manufacturing process.

: http://publica.fraunhofer.de/dokumente/N-362436.html