TY  - JOUR
A1  - Fateri, Miranda
A1  - Hötter, Jan-Steffen
A1  - Gebhardt, Andreas
T1  - Experimental and Theoretical Investigation of Buckling Deformation of Fabricated Objects by Selective Laser Melting
JF  - Physics Procedia
N2  - Although Selective Laser Melting (SLM) process is an innovative manufacturing method, there are challenges such as inferior mechanical properties of fabricated objects. Regarding this, buckling deformation which is caused by thermal stress is one of the undesired mechanical properties which must be alleviated. As buckling deformation is more observable in hard to process materials, silver is selected to be studied theoretically and experimentally for this paper. Different scanning strategies are utilized and a Finite Element Method (FEM) is applied to calculate the temperature gradient in order to determine its effect on the buckling deformation of the objects from experiments.
Y1  - 2012
U6  - http://dx.doi.org/10.1016/j.phpro.2012.10.062
SN  - 1875-3892
N1  - Part of special issue "Laser Assisted Net shape Engineering 7 (LANE 2012)"
VL  - 39
SP  - 464
EP  - 470
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Pfeiffer, Johann
T1  - Lernfeld 'Prozeßkette der Freiformflächenherstellung' : [Online-Ressource] / ... in Zus.-Arb. mit Johann Pfeiffer
JF  - NUMAS - Ein Lehr- und Lernsystem zur Numerischen Mathematik und Statistik : [Online-Ressource] / Projektleitung: Gisela Engeln Müllges
Y1  - 2003
N1  - Die Online-Lerneinheit ist erst nach Registrierung im Lernsystem (http://www.numas.de) einsehbar.
Stand der Aktualisierung von NUMAS®: 21.05.2004.
PB  - NUMAS.de
CY  - Aachen
ER  - 
TY  - JOUR
A1  - Pfeiffer, Johann
T1  - Genauigkeit und Qualität von Freiformflächen / Projektleiter: Joachim Gauchel
JF  - Forschungsbericht 2004 / Hrsg.: Der Rektor der Fachhochschule Aachen
Y1  - 2004
N1  - Kapitel 4.8: Projekte des Fachbereichs Maschinenbau und Mechatronik
SP  - 180
PB  - Fachhochsch.
CY  - Aachen
ER  - 
TY  - JOUR
A1  - Pfeiffer, Johann
T1  - Gute Chancen im Maschinenbau
JF  - Rheinische Post : Sonderbeil. (2002)
Y1  - 2002
ER  - 
TY  - JOUR
A1  - Pfeiffer, Johann
A1  - Gauchel, Joachim
A1  - Lücke, Mathias
T1  - Genauigkeitsbetrachtungen in der CIM-Prozesskette
JF  - 4th International Scientific Colloquium CAx Techniques : proceedings of the 4th international scientific colloquium, Fachhochschule Bielefeld, Germany, September 13 - 15, 1999 / [organized in co-operation between Fachhochschule Bielefeld and Rzeszów University of Technology ]. Ed. by Heinrich Ostholt
Y1  - 1999
SN  - 3-00-004379-9
N1  - CAx Techniques <4, 1999, Bielefeld>
SP  - 323
EP  - 332
PB  - [Fachhochsch.]
CY  - [Bielefeld]
ER  - 
TY  - JOUR
A1  - Pfeiffer, Johann
T1  - Chancen im Maschinenbau
JF  - Fachblatt :  Journal der Fachhochschule Aachen . 2002 (2002), H. 1
Y1  - 2002
SP  - 2
PB  - -
ER  - 
TY  - JOUR
A1  - Pfeiffer, Johann
A1  - Gauchel, Joachim
T1  - Entwicklung und Simulation von Mechanismen zu Automatisierungszwecken / Joachim Gauchel ; Johann Pfeiffer
JF  - CAE Techniques : [proceedings of the 3st International Scientific Colloquium, Rzeszów University of Technology, Poland, September 24-27, 1997] / ed. by Kazimierz E. Oczoś
Y1  - 1997
SN  - 83-7199-004-9
N1  - CAE Techniques <3, 1997, Rzeszów> ; Politechnika Rzeszowska Imienia Ignacego Łukasiewicza
SP  - 425 ff
PB  - Politechnika Rzeszowska
CY  - Rzeszów
ER  - 
TY  - JOUR
A1  - Pfeiffer, Johann
T1  - Gute Chancen im Maschinenbau
JF  - Aachener Nachrichten / Aachener Zeitung : Sonderbeil. (2002)
Y1  - 2002
PB  - -
ER  - 
TY  - JOUR
A1  - Kallweit, Stephan
A1  - Korculanin, O.
A1  - Fröhlig, F.
A1  - Gabi, M.
A1  - Mattern, P.
T1  - Photogrammetrische Rekonstruktion von Partikelpositionen mittels Rückprojektion für 3D-PIV
JF  - Lasermethoden in der Strömungsmesstechnik : 19. Fachtagung, 6. - 8. September 2011, Ilmenau ; [Tagungsband enthält ... Beiträge, die anlässlich der 19. Fachtagaung "Lasermethoden in der Strömungsmesstechnik" ... vorgetragen und diskutiert wurden] / veranst. von der Deutschen Gesellschaft für Laser-Anemometrie GALA e.V. Hrsg. A. Thess...
Y1  - 2011
SN  - 978-3-9805613-7-2
N1  - Fachtagung Lasermethoden in der Strömungsmesstechnik <19, 2011, Ilmenau> ; Deutsche Gesellschaft für Laser-Anemometrie
SP  - 28/1
EP  - 28/6
PB  - Dt. Ges. für Laser-AnemometrieGALA e. V.
CY  - Karlsruhe
ER  - 
TY  - JOUR
A1  - Haselgruber, Nikolaus
A1  - Mautner, Karin
A1  - Thiele, Jan
T1  - Usage Space Analysis for Reliability Testing
JF  - Quality and Reliability Engineering International
N2  - During the development process of a complex technical product, one widely used and important technique is accelerated testing where the applied stress on a component is chosen to exceed the reference stress, i.e. the stress encountered in field operation, in order to reduce the time to failure. For that, the reference stress has to be known. Since a complex technical product may fail regarding numerous failure modes, stress in general is highly dimensional rather than scalar. In addition, customers use their products individually, i.e. field operation should be described by a distribution rather than by one scalar stress value. In this paper, a way to span the customer usage space is shown. It allows the identification of worst case reference stress profiles in significantly reduced dimensions with minimal loss of information. The application example shows that even for a complex product like a combustion engine, stress information can be compressed significantly. With low measurement effort it turned out that only three reference stress cycles were sufficient to cover a broad range of customer stress variety.
Y1  - 2010
U6  - http://dx.doi.org/10.1002/qre.1155
SN  - 1099-1638
N1  - Special Issue: Business and Industrial Statistics: Developments and Industrial Practices in Quality and Reliability
VL  - 26
IS  - 8
SP  - 877
EP  - 885
PB  - Wiley
CY  - New York
ER  -