TY  - JOUR
A1  - Raffeis, Iris
A1  - Adjei-Kyeremeh, Frank
A1  - Vroomen, Uwe
A1  - Westhoff, Elmar
A1  - Bremen, Sebastian
A1  - Hohoi, Alexandru
A1  - Bührig-Polaczek, Andreas
T1  - Qualification of a Ni-Cu alloy for the laser powder bed fusion process (LPBF): Its microstructure and mechanical properties
JF  - Applied Sciences
N2  - As researchers continue to seek the expansion of the material base for additive manufacturing, there is a need to focus attention on the Ni–Cu group of alloys which conventionally has wide industrial applications. In this work, the G-NiCu30Nb casting alloy, a variant of the Monel family of alloys with Nb and high Si content is, for the first time, processed via the laser powder bed fusion process (LPBF). Being novel to the LPBF processes, optimum LPBF parameters were determined, and hardness and tensile tests were performed in as-built conditions and after heat treatment at 1000 °C. Microstructures of the as-cast and the as-built condition were compared. Highly dense samples (99.8% density) were achieved after varying hatch distance (80 µm and 140 µm) with scanning speed (550 mm/s–1500 mm/s). There was no significant difference in microhardness between varied hatch distance print sets. Microhardness of the as-built condition (247 HV0.2) exceeded the as-cast microhardness (179 HV0.2.). Tensile specimens built in vertical (V) and horizontal (H) orientations revealed degrees of anisotropy and were superior to conventionally reported figures. Post heat treatment increased ductility from 20% to 31% (V), as well as from 16% to 25% (H), while ultimate tensile strength (UTS) and yield strength (YS) were considerably reduced.
Y1  - 2020
U6  - http://dx.doi.org/10.3390/app10103401
SN  - 2076-3417
N1  - Special Issue Materials Development by Additive Manufacturing Techniques
VL  - 10
IS  - Art. 3401
SP  - 1
EP  - 15
PB  - MDPI
CY  - Basel
ER  - 
TY  - JOUR
A1  - Starke, Günther
A1  - Drews, P.
T1  - Qualitaetssicherung in der automatisierten schweisstechnischen Fertigung durch Einsatz von Sensoren
JF  - Sensor. 6 (1983)
Y1  - 1983
N1  - Konferenz-Einzelbericht : SENSOR '83. Tranducer-Technik: Entwicklung und Anwendung. Schweizer  Mustermesse, Basel, 17.-19.5.1983
SP  - 29
EP  - 45
ER  - 
TY  - JOUR
A1  - Starke, Günther
A1  - Drews, P.
T1  - Qualitaetssicherung in der automatisierten schweisstechnischen Fertigung durch Einsatz von Sensoren
JF  - Technisches Messen tm. 50 (1983), H. 12
Y1  - 1983
SN  - 0171-8096
SP  - 467
EP  - 473
ER  - 
TY  - JOUR
A1  - Kunkel, Maximilian Hugo
A1  - Gebhardt, Andreas
A1  - Mpofu, Khumbulani
A1  - Kallweit, Stephan
T1  - Quality assurance in metal powder bed fusion via deep-learning-based image classification
JF  - Rapid Prototyping Journal
Y1  - 2019
U6  - http://dx.doi.org/10.1108/RPJ-03-2019-0066
SN  - 1355-2546
VL  - 26
IS  - 2
SP  - 259
EP  - 266
ER  - 
TY  - JOUR
A1  - Franzen, Julius
A1  - Pinders, Erik
A1  - Pfaff, Raphael
A1  - Enning, Manfred
T1  - RailCrowd’s virtual fleets: Make most of your asset data
JF  - Deine Bahn
N2  - For smaller railway operators or those with a diverse fleet, it can be difficult to collect sufficient data to improve maintenance programs. At the same time, new rules such as entity in charge of maintenance – ECM – regulations impose an additional workload by requiring a dedicated maintenance management system and specific reports. The RailCrowd platform sets out to facilitate compliance with ECM and similar regulations while at the same time pooling anonymised fleet data across operators to form virtual fleets, providing greater data insights.
Y1  - 2018
SN  - 0948-7263
IS  - 9
SP  - 11
EP  - 13
PB  - Bahn-Fachverlag
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Pfaff, Raphael
T1  - Railway Challenge 2018 - Ein Wettbewerb für Parkbahn-Lokomotiven
T2  - Deine Bahn
Y1  - 2018
SN  - 0948-7263
SP  - 22
EP  - 24
ER  - 
TY  - BOOK
A1  - Gebhardt, Andreas
T1  - Rapid Prototyping
Y1  - 2003
SN  - 3-446-21259-0
PB  - Hanser
CY  - Munich [u.a.]
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
T1  - Rapid Prototyping
JF  - Landolt-Börnstein - Group VIII Advanced Materials and Technologies‡Vol. 1 Laser Physics and Applications‡Subvol. C  Laser Applications / authors: Bäuerle, D.  ...
Y1  - 2004
SN  - 3-540-00105-0
SP  - 105
EP  - 123
PB  - Heidelberg
CY  - Springer
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
T1  - Rapid Prototyping - Laser-gestützte Revolution der Produktentwicklung. Teil I
JF  - Laser Magazin (1996)
Y1  - 1996
SN  - 0945-8875
SP  - 6
EP  - 9
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
T1  - Rapid Prototyping : Grundlagen, Verfahren und Einsatzkriterien für die industrielle Praxis
JF  - Konstruieren mit Kunststoffen. - 3. Aufl.
Y1  - 2003
SN  - 3-935065-13-2
N1  - Kap. 7
PB  - Springer -VDI-Verl.
CY  - Düsseldorf
ER  -