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Phenomena in multi-material fabrication using laser metal deposition
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development. Fraunhofer Institute for Material and Beam Technology, Winterbergstraße 28, 01277 Dresden, Germany.
Fraunhofer Institute for Material and Beam Technology, Winterbergstraße 28, 01277 Dresden, Germany.
Fraunhofer Institute for Material and Beam Technology, Winterbergstraße 28, 01277 Dresden, Germany.
Fraunhofer Institute for Material and Beam Technology, Winterbergstraße 28, 01277 Dresden, Germany; Technische Universität Dresden, Faculty of Mechanical Engineering, Inst. of Materials Science, 01069 Dresden, Germany.
2019 (English)In: Laser 3D Manufacturing VI / [ed] Bo Gu; Henry Helvajian; Hongqiang Chen, SPIE - International Society for Optical Engineering, 2019, article id 109090HConference paper, Published paper (Refereed)
Abstract [en]

Additive Manufacturing (AM) processes as Laser Metal Deposition (LMD) addresses various benefits such as the build-up of complex shaped parts, the possibility of functional integration, reduced lead times or the use of difficult machinable materials compared to conventional manufacturing possibilities. Beside mentioned advantages, the use of more than one material in a component strongly increases the field of applications. Similar to structures in nature, multi-material arrangements can be realized by (I) sharp intersections from one material to the other (e. g. in the case of a thin corrosion protection), (II) graded structures enabling smoother material transitions (e. g. dissimilar materials joined together without defects), (III) composite structures with enclosed particles in a matrix material as well as by (IV) in-situ alloying of different material compositions. Due to varying material properties (e.g. thermo-physical, mechanical, optical), the combination of materials often requires a detailed investigation of occurring process phenomena and well-chosen modifications of the process regimes. Within this paper, (a) the right material feeding as well as powder interaction between various materials in Laser Metal Deposition, (b) the suitable selection of laser wavelengths for different materials, (c) process window adjustments by means of additional sensor equipment, (d) limitations of material combinations as well as (e) results and material characterization of multi-material parts are discussed. Phenomena are discussed by means of exemplary industrial applications, e.g. from the jet engine or medical business. 

Place, publisher, year, edition, pages
SPIE - International Society for Optical Engineering, 2019. article id 109090H
Series
Proceedings of SPIE, ISSN 0277-786X, E-ISSN 1996-756X ; 10909
Keywords [en]
Additive Manufacturing, Laser Metal Deposition, multi-material, graded structures, composite build-up
National Category
Manufacturing, Surface and Joining Technology
Research subject
Manufacturing Systems Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-86210DOI: 10.1117/12.2513570ISI: 000481656000009Scopus ID: 2-s2.0-85067650930OAI: oai:DiVA.org:ltu-86210DiVA, id: diva2:1576393
Conference
Laser 3D Manufacturing VI, San Francisco, United States, February 5-7, 2019
Note

ISBN för värdpublikation: 9781510624603; 9781510624610;

Finansiär: Federal Ministry of Education and Research (BMBF) of Germany; Agent-3D

Available from: 2021-07-01 Created: 2021-07-01 Last updated: 2021-09-07Bibliographically approved

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Brueckner, Frank

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