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Part Tailoring in Metal-Additive Manufacturing: A Step towards Functionally Graded Customized Stainless-Steel Components Using Laser Powder Bed Fusion

Elkaseer, Ahmed 1,2; Charles, Amal ORCID iD icon 2; Schneider, Stella 2; Scholz, Steffen G. ORCID iD icon 1,2
1 Karlsruhe Nano Micro Facility (KNMF), Karlsruher Institut für Technologie (KIT)
2 Institut für Automation und angewandte Informatik (IAI), Karlsruher Institut für Technologie (KIT)


The aim of this project is to demonstrate a proof of concept by using Additive Manufacturing (AM) technology in order to demonstrate its viability for the production of tailor-made components with regions of varying (higher and lower) hardness and surface roughness within a single part. In order to do this, first a test piece is designed and printed following a full factorial design of the experiment with eight runs with varying process parameters set within different regions of one part. The structure is printed several times with the laser-powder-bed-fusion-based metal-additive-manufacturing system “Sodick LPM 325” using AISI 420 in order to test and validate the change in the achievable mechanical property and surface roughness. The above-mentioned quality marks are characterized using a tactile profilometer, Rockwell test and part density, and the results are statistically analyzed using MATLAB. The results show that the linear energy density plays a significant role in controlling the surface roughness of the top surface of the components while the hardness on the top surface is unaffected. On the side surfaces, it is known that the layer thickness plays a significant role on the surface roughness as well as hardness. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000148743
Veröffentlicht am 15.07.2022
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Automation und angewandte Informatik (IAI)
Karlsruhe Nano Micro Facility (KNMF)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2022
Sprache Englisch
Identifikator ISSN: 2076-3417
KITopen-ID: 1000148743
HGF-Programm 43.31.02 (POF IV, LK 01) Devices and Applications
Erschienen in Applied Sciences
Verlag MDPI
Band 12
Heft 12
Seiten Art.Nr. 6193
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Vorab online veröffentlicht am 17.06.2022
Schlagwörter Proposal ID: 2017-018-019629; 3DP
Nachgewiesen in Scopus
Web of Science
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