TY  - JOUR
A1  - Dilthey, Ulrich
A1  - Brandenburg, Annette
A1  - Schleser, Markus
T1  - Dispensing and application of unfilled adhesives in the micro range
JF  - Welding and cutting. 3 (2004), H. 4
Y1  - 2004
SN  - 1612-3433
SP  - 250
EP  - 254
ER  - 
TY  - JOUR
A1  - Sedlacek, G.
A1  - Schätzke, C.
A1  - Geßler, M.
A1  - Schleser, Markus
T1  - Fügen von Bauteilen aus textilbewehrtem Beton
JF  - Der Bauingenieur : die richtungsweisende Zeitschrift im Bauingenieurswesen ; offizielle Zeitschrift der VDI-Gesellschaft Bautechnik.  Bd. 79 (2004), H. 12
Y1  - 2004
SN  - 0005-6650
N1  - Printausg. in der Bibliothek der FH Aachen vorhanden: 13 Z 049-2004
SP  - 569
EP  - 575
ER  - 
TY  - JOUR
A1  - Dilthey, Ulrich
A1  - Schleser, Markus
A1  - Geßler, Achim
A1  - Rettweiler, Timo
A1  - Völling, Boris
T1  - Kleben textilbewehrter Betonbauteile
JF  - Schweissen und Schneiden : Fachzeitschrift für Schweißen und verwandte Verfahren. Jg. 57 (2005), Nr. 8
Y1  - 2005
SN  - 0036-7184
SP  - 373
EP  - 377
ER  - 
TY  - JOUR
A1  - Reisgen, Uwe
A1  - Schleser, Markus
A1  - Mokrov, Oleg
A1  - Ahmed, Essam
T1  - Statistical modeling of laser welding of DP/TRIP steel sheets
JF  - Optics and laser technology
N2  - In this research work, a statistical analysis of the CO2 laser beam welding of dual phase (DP600)/transformation induced plasticity (TRIP700) steel sheets was done using response surface methodology. The analysis considered the effect of laser power (2–2.2 kW), welding speed (40–50 mm/s) and focus position (−1 to 0 mm) on the heat input, the weld bead geometry, uniaxial tensile strength, formability limited dome height and welding operation cost. The experimental design was based on Box–Behnken design using linear and quadratic polynomial equations for predicting the mathematical models. The results indicate that the proposed models predict the responses adequately within the limits of welding parameters being used and the welding speed is the most significant parameter during the welding process.
Y1  - 2012
U6  - http://dx.doi.org/10.1016/j.optlastec.2011.05.025
SN  - 1879-2545 (E-Journal); 0030-3992 (Print); 0308-4280 (Print)
VL  - 44
IS  - 1
SP  - 92
EP  - 101
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Reisgen, Uwe
A1  - Schleser, Markus
A1  - Mokrov, Oleg
A1  - Ahmed, Essam
T1  - Optimization of laser welding of DP/TRIP steel sheets using statistical approach
JF  - Optics and laser technology
N2  - Generally, the quality of a weld joint is directly influenced by the welding input parameter settings. Selection of proper process parameters is important to obtain the desired weld bead profile and quality. In this research work, numerical and graphical optimization techniques of the CO2 laser beam welding of dual phase (DP600)/transformation induced plasticity (TRIP700) steel sheets were carried out using response surface methodology (RSM) based on Box–Behnken design. The procedure was established to improve the weld quality, increase the productivity and minimize the total operation cost by considering the welding parameters range of laser power (2–2.2 kW), welding speed (40–50 mm/s) and focus position (−1 to 0 mm). It was found that, RSM can be considered as a powerful tool in experimental welding optimization, even when the experimenter does not have a model for the process. Strong, efficient and low cost weld joints could be achieved using the optimum welding conditions.
Y1  - 2012
U6  - http://dx.doi.org/10.1016/j.optlastec.2011.06.028
SN  - 1879-2545 (E-Journal); 0030-3992 (Print); 0308-4280 (Print)
VL  - 44
IS  - 1
SP  - 255
EP  - 262
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Reisgen, Uwe
A1  - Olschok, Simon
A1  - Jakobs, Stefan
A1  - Schleser, Markus
A1  - Mokrov, Oleg
A1  - Rossiter, Eduardo
T1  - Laser beam submerged arc hybrid welding
JF  - Physics procedia
N2  - The laser beam-submerged arc hybrid welding method originates from the knowledge that, with increasing penetration depth, the laser beam process has a tendency to pore formation in the lower weld regions. The coupling with the energy-efficient submerged-arc process improves degassing and reduces the tendency to pore formation. The high deposition rate of the SA process in combination with the laser beam process offers, providing the appropriate choice of weld preparation, the possibility of welding plates with a thickness larger than 20° mm in a single pass, and also of welding thicker plates with the double-sided single pass technique.
Y1  - 2012
U6  - http://dx.doi.org/10.1016/j.phpro.2012.10.016
SN  - 1875-3892
N1  - Part of special issue "Laser assisted net shape engineering 7 (LANE 2012)"
VL  - 39
SP  - 75
EP  - 83
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Reisgen, Uwe
A1  - Schleser, Markus
A1  - Abdurakhmanov, Aydemir
A1  - Gumenyuk, Andrey
T1  - Measuring of plasma properties induced by non-vacuum electron beam welding
JF  - Physics of plasma
N2  - Electron beam plasma measurement was realised by means of DIABEAM system invented by ISF RWTH Aachen. The Langmuir probe method is used for measurement. The relative simplicity of the method and the possibility of dispersion of high power on the probe allow its application for the investigation of high-power electron beams. The key element of the method is a rotating thin tungsten wire, which intersects the beam transversely on its axis and collects part of the current by itself. The signals, which are registered in the DIABEAM as a voltage, were taken in the form of amplitude. The conversion of the probe current into the distribution along the beam radius was realised using the Abel’s method. A voltage-current characteristic was built for the beam current. The local electron density as well as the electron temperature, the floating potential and the plasma potential were measured and calculated by means of this characteristic.
Y1  - 2012
U6  - http://dx.doi.org/10.1063/1.3675874
SN  - 1089-7674 (E-Journal); 1070-664X (Print)
VL  - 19
IS  - 1
SP  - 1
EP  - 7
PB  - AIP Publishing
CY  - Melville, NY
ER  - 
TY  - JOUR
A1  - Reisgen, Uwe
A1  - Schleser, Markus
A1  - Mokrov, Oleg
A1  - Zabirov, Alexander
A1  - Füssel, Uwe
A1  - Schnick, Michael
A1  - Hertel, Martin
A1  - Jaeckel, Sebastian
T1  - Modellierung und Visualisierung der MSG-Lichtbogenprozesse
JF  - Schweissen und Schneiden : Fachzeitschrift für Schweißen und verwandte Verfahren
Y1  - 2012
SN  - 0036-7184
VL  - 64
IS  - 4
SP  - 166
EP  - 174
PB  - DVS Verlag
CY  - Düsseldorf
ER  - 
TY  - JOUR
A1  - Mukherjee, Krishnendu
A1  - Ramazani, Ali
A1  - Yang, Li
A1  - Prahl, Ulrich
A1  - Bleck, Wolfgang
A1  - Reisgen, Uwe
A1  - Schleser, Markus
A1  - Abdurakhmanov, Aydemir
T1  - Characterization of gas metal arc welded hot rolled DP600 steel
JF  - Steel research international
Y1  - 2011
SN  - 1869-344X (E-Book); 1611-3683 (Print)
VL  - Vol. 82
IS  - Iss. 12
SP  - 1408
EP  - 1416
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Glowania, Michael
A1  - Gries, Thomas
A1  - Schoene, Jens
A1  - Schleser, Markus
A1  - Reisgen, Uwe
T1  - Innovative coating technology for textile reinforcements of concrete applications
JF  - 13th International Congress on Polymers in Concrete : 10 - 12 February 2010, Funchal, Madeira, Portugal.(Key engineering materials. Vol. 466)
Y1  - 2011
SN  - 978-3-03785-008-4
SN  - 1013-9826 (E-Journal) ; 0252-1059 (Print)
SP  - 167
EP  - 173
PB  - Trans Tech Publications
CY  - Bäch
ER  - 
TY  - JOUR
A1  - Reisgen, Uwe
A1  - Schleser, Markus
A1  - Mokrov, Oleg
A1  - Ahmed, Essam
T1  - Numerical and experimental investigation of tensile behavior of laser beam welded TRIP700 steel
JF  - ISIJ international
Y1  - 2011
SN  - 1347-5460 (E-Journal); 0915-1559 (Print)
VL  - Vol. 51
IS  - No. 3
SP  - 429
EP  - 434
PB  - ISIJ
CY  - Tōkyō
ER  - 
TY  - JOUR
A1  - Reisgen, Uwe
A1  - Schleser, Markus
A1  - Harms, Alexander
A1  - Schiebahn, Alexander
A1  - Naumov, Andreas
T1  - Erweiterung des Parameterfelds zum Rührreibschweißen mittels konduktiver Unterstützung
JF  - Schweissen und Schneiden : Fachzeitschrift für Schweißen und verwandte Verfahren
Y1  - 2011
SN  - 0036-7184
VL  - Bd. 63
IS  - H. 12
SP  - 710
EP  - 714
PB  - DVS-Media GmbH
CY  - Düsseldorf
ER  - 
TY  - JOUR
A1  - Reisgen, Uwe
A1  - Schleser, Markus
A1  - Harms, Alexander
A1  - Schiebahn, Alexander
A1  - Thiele, Regina
ED  - Kampker, Achim
T1  - Elektromobilität - Herausforderungen an die Fügetechnik
JF  - mobilität morgen - Magazin zu Mobilität und Elektromobilität
Y1  - 2011
VL  - Jg. 1
IS  - Nr. 2
SP  - 16
EP  - 17
ER  - 
TY  - JOUR
A1  - Roesner, Andreas
A1  - Scheik, Sven
A1  - Olowinsky, Alexander
A1  - Gillner, Arnold
A1  - Propawe, Reinhart
A1  - Schleser, Markus
A1  - Reisgen, Uwe
T1  - Innovative approach of joining hybrid components
JF  - Journal of laser applications
Y1  - 2011
SN  - 1042-346X
VL  - Vol. 23
IS  - Iss. 3
SP  - 32007
PB  - Laser Institute of America
CY  - Orlando, Fla.
ER  - 
TY  - JOUR
A1  - Roesner, Andreas
A1  - Scheik, Sven
A1  - Olowinsky, Alexander
A1  - Gillner, Arnold
A1  - Reisgen, Uwe
A1  - Schleser, Markus
T1  - Laser assisted joining of plastic metal hybrids
JF  - Lasers in manufacturing 2011 : proceedings of the sixth International WLT Conference on Lasers in Manufacturing, Munich, May 23 - 26 2011. (Physics procedia ; Vol. 12 (2011), Part B)
Y1  - 2011
SN  - 1875-3892 (E-Journal); 1875-3884 (Print)
SP  - 370
EP  - 377
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Reisgen, Uwe
A1  - Schleser, Markus
A1  - Mokrov, Oleg
A1  - Zabirov, Alexander
T1  - Virtual welding equipment for simulation of GMAW processes with integration of power source regulation
JF  - Frontiers of materials science
Y1  - 2011
SN  - 2095-0268 (E-Journal); 2095-025X (Print)
VL  - Vol. 5
IS  - Iss. 2
SP  - 79
EP  - 89
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Dilthey, Ulrich
A1  - Schleser, Markus
A1  - Hanisch, Vera
A1  - Gries, Thomas
T1  - Garnzugprüfung polymergetränkter Textilien für die Bewehrung von Beton
JF  - Technische Textilien
Y1  - 2006
SN  - 0323-3243
VL  - 49
IS  - 1
SP  - 48
EP  - 50
ER  - 
TY  - JOUR
A1  - Schleser, Markus
A1  - Walk-Lauffer, Bernd
A1  - Raupach, Michael
A1  - Dilthey, Ulrich
T1  - Application of polymers for textile-reinforced concrete
JF  - Journal of materials in civil engineering : properties, applications, durability
Y1  - 2006
SN  - 0899-1561
VL  - 18
IS  - 5
SP  - 670
EP  - 676
ER  - 
TY  - JOUR
A1  - Feldmann, Markus
A1  - Pak, Daniel
A1  - Geßler, Achim
A1  - Dilthey, Ulrich
A1  - Schleser, Markus
T1  - Bonded connections for textile reinforced concrete structures
JF  - Cailiao-gongcheng = Journal of materials engineering
Y1  - 2006
SN  - 1001-4381
IS  - Special iss.
SP  - 123
EP  - 127
ER  - 
TY  - JOUR
A1  - Feldmann, Markus
A1  - Pak, Daniel
A1  - Geßler, Achim
A1  - Schleser, Markus
T1  - Entwicklung eines Bemessungsmodells für punktförmige Verbindungen textibewehrter Betonbauteile
JF  - Bautechnik : Zeitschrift für den gesamten Ingenieurbau
Y1  - 2008
SN  - 0005-6820, 0341-1052, 0932-6359, 0932-8351, 0932-8351
N1  - Printausg. in der Bibliothek der FH Aachen vorhanden: 13 Z 177
VL  - Bd. 85
IS  - 2
SP  - 143
EP  - 147
ER  - 
TY  - JOUR
A1  - Dilthey, Ulrich
A1  - Schleser, Markus
A1  - Feldmann, Martin
A1  - Pak, Daniel
A1  - Geßler, Achim
T1  - Investigation of punctiform, plane and hybrid joints of textile-reinforced concrete parts
JF  - Cement and concrete composites
Y1  - 2008
SN  - 0958-9465
VL  - Vol. 30
IS  - iss. 2
SP  - 82
EP  - 87
ER  - 
TY  - JOUR
A1  - Reisgen, Uwe
A1  - Schleser, Markus
A1  - Feldmann, Martin
A1  - Pak, Daniel
A1  - Geßler, Achim
T1  - Kleben dünnwandiger Bauteile aus textilbewehrtem Beton
JF  - Schweissen und Schneiden : Fachzeitschrift für Schweißen und verwandte Verfahren
Y1  - 2008
SN  - 0036-7184
VL  - Bd. 60
IS  - H. 7/8
SP  - 408
EP  - 412
ER  - 
TY  - JOUR
A1  - Scheik, Sven
A1  - Schleser, Markus
A1  - Reisgen, Uwe
T1  - Thermisches Direktfügen von Metall und Kusntstoff: eine Alternative zur Klebtechnik
JF  - Adhäsion : Kleben & Dichten
N2  - Im Rahmen des Exzellenzclusters „Integrative Produktionstechnik für Hochlohnländer“ der RWTHAachen University werden derzeit alternative Verfahren zur Herstellung von Metall/Kunststoff- Verbindungen untersucht. Eines davon ist das thermische Direktfügen, das eine stoffschlüssige Verbindung zwischen Kunststoff und Metall ermöglicht und ohne die Verwendung von Klebstoffen, Haftvermittlern oder mechanischen Verbindungshilfen auskommt.
Y1  - 2012
U6  - http://dx.doi.org/10.1007/s35145-012-0005-x
SN  - 0001-8198 (E-Journal); 0001-8198 (Print)
N1  - Printausg. in der Bibliothek der FH Aachen vorhanden: 63 Z 807-2012
VL  - 56
IS  - 11
SP  - 36
EP  - 40
PB  - Springer Vieweg
CY  - Wiesbaden
ER  - 
TY  - JOUR
A1  - Reisgen, Uwe
A1  - Schleser, Markus
A1  - Mokrov, Oleg
A1  - Zabirov, Alexander
A1  - Füssel, Uwe
A1  - Schnick, Michael
A1  - Hertel, Martin
A1  - Jaeckel, Sebastian
T1  - Modelling and visualisation of the GMA process
JF  - Welding and Cutting
Y1  - 2012
SN  - 1612-3433
VL  - 11
IS  - 4
SP  - 242
EP  - 249
PB  - DVS Verlag
CY  - Düsseldorf
ER  - 
TY  - JOUR
A1  - Reisgen, Uwe
A1  - Schleser, Markus
A1  - Schiebahn, Alexander
T1  - Untersuchung zum Einfluss von Maschineneigenschaften von Schweißzangen zum Widerstandspunktschweißen auf das Schweißergebnis
JF  - Schweissen und Schneiden : Fachzeitschrift für Schweißen und verwandte Verfahren
Y1  - 2013
SN  - 0036-7184
VL  - Bd. 65
IS  - H. 6
SP  - 309
EP  - 313
PB  - DVS Verl.
CY  - Düsseldorf
ER  - 
TY  - JOUR
A1  - Ramazani, Ali
A1  - Li, Yang
A1  - Mukherjee, Krishnendu
A1  - Prahl, Ulrich
A1  - Bleck, Wolfgang
A1  - Abdurakhmanov, Aydemir
A1  - Schleser, Markus
A1  - Reisgen, Uwe
T1  - Microstructure evolution simulation in hot rolled DP600 steel during gas metal arc welding
JF  - Computational materials science
Y1  - 2013
SN  - 1879-0801 (E-Book); 0927-0256 (Print)
VL  - Vol. 68
SP  - 107
EP  - 116
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Reisgen, Uwe
A1  - Schäfer, Johannes
A1  - Wilms, Konrad
A1  - Schleser, Markus
T1  - Aufmischungsarmes, dickschichtiges MSG-Auftragschweißen mit entkoppelter Zweidrahttechnik
JF  - Schweißen und Schneiden
N2  - Für Auftragschweißaufgaben existiert eine Vielzahl an verfahrenstechnischen
Prozessvarianten, die je nach Charakteristik und Anwendungsfall
ausgewählt werden. Ein Nachteil der vorwiegend verwendeten Metall-
Schutzgasschweißprozesse (MSG) für das Auftragschweißen ist durch die
direkte Kopplung von Drahtvorschub zu Energieeintrag gegeben. Die vorgestellte
Zweidraht-Prozessvariante kann durch die Ausbildung eines übertragenen
und eines nicht-übertragenen Lichtbogens die elektrische Leistung
beider Lichtbögen variieren und damit einen direkten Einfluss auf
die Prozessgrößen Abschmelzleistung und Aufschmelzgrad nehmen. Im
Speziellen besteht über die Entkopplung von Drahtvorschub zu Schweißstromstärke
die Möglichkeit eines niederenergetischen Betriebs trotz hoher
Drahtvorschubgeschwindigkeit. Damit lassen sich Aufschmelzgrade
unter 2% umsetzen und Abschmelzleistungen bis zu 15 kg/h realisieren.
Y1  - 2017
SN  - 0036-7184
VL  - 69
IS  - 12
SP  - 838
EP  - 843
PB  - DVS Verlag
CY  - Düsseldorf
ER  - 
TY  - JOUR
A1  - Kampker, Achim
A1  - Schleser, Markus
A1  - Triebs, Johannes
A1  - Berg, Alexander-Karl
A1  - Hansen, Jan Ole
A1  - Fiedler, Falko
T1  - Bauteilintegrierte Vorrichtungsfunktionen im Karosseriebau : Aktuelle Ergebnisse im Forschungsprojekt ProeK
JF  - ZWF Zeitschrift für wirtschaftlichen Fabrikbetrieb
N2  - Das Forschungsprojekt Produktionseffizienz in der Kleinserie (ProeK) erarbeitet kostengünstige und effiziente Lösungsansätze für Prozessketten im Zukunftsfeld der Elektromobilität. Das Teilprojekt Karosserie setzt diese Zielsetzung durch innovative und praxisorientierte Produkt- und Prozesskonzepte mit neuartigen bauteilintegrierten Vorrichtungsfunktionen (BiV) um. Im Teilprojekt Außenhaut sollen Toleranzen adaptiv durch Anpassungen der Prozessparameter sowie Bauteilmanipulation kompensiert werden.
Y1  - 2018
U6  - http://dx.doi.org/10.3139/104.112012
SN  - 0947-0085
VL  - 113
IS  - 11
SP  - 767
EP  - 770
PB  - De Gruyter
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Berg, Alexander-Karl
A1  - Schleser, Markus
A1  - Delidovich, Artem
A1  - Houben, Alexander
T1  - Ultraschallunterstützter Schmelzklebstoffauftrag
JF  - adhäsion KLEBEN & DICHTEN
Y1  - 2018
U6  - http://dx.doi.org/10.1007/s35145-018-0089-z
VL  - Volume 62
IS  - Issue 12
SP  - 32
EP  - 37
PB  - Springer
ER  - 
TY  - JOUR
A1  - Zabirov, Alexander
A1  - Schleser, Markus
A1  - Bucherer, Sebastian
T1  - Füge- und Dichtkonzept für einen Leichtbauverbrennungsmotor
JF  - adhäsion KLEBEN & DICHTEN
Y1  - 2021
U6  - http://dx.doi.org/10.1007/s35145-021-0531-5
SN  - 2192-8681
VL  - 65
IS  - 11
SP  - 12
EP  - 19
PB  - Springer Nature
CY  - Cham
ER  - 
TY  - JOUR
A1  - Schwarz, Alexander
A1  - Gebhardt, Andreas
A1  - Schleser, Markus
A1  - Popoola, Patricia
T1  - New Welding Joint Geometries Manufactured by Powder Bed Fusion from 316L
JF  - Materials Performance and Characterization 8
Y1  - 2019
U6  - http://dx.doi.org/10.1520/MPC20180096
SN  - 2379-1365
IS  - in press
ER  - 
TY  - JOUR
A1  - Reisgen, Uwe
A1  - Schleser, Markus
A1  - Mokrov, Oleg
A1  - Ahmed, Essam
T1  - Uni- and bi-axial deformation behavior of laser welded advanced high strength steel sheets
JF  - Journal of materials processing technology
N2  - Bead-on-plate butt joints of 2.5 mm hot rolled DP600/DP600 and 1.2 mm cold rolled TRIP700/TRIP700 steel sheets were performed using 6 kW CO2 laser beam welding. The welding speed ranged from 1.5 to 3.0 and from 2.1 to 3.9 m/min in DP/DP and TRIP/TRIP steel weldments respectively. A top surface helium gas was used as a shielding gas at a flow rate of 20 l/min. Metallographic examinations and transverse tensile testing (DIN EN 895: 1995) were carried out to characterize the weldments. The formability of base metals and weldments were investigated by standard Erichsen test (DIN EN ISO 20482). It was found that the uniaxial plastic behavior of both DP600 and TRIP700 base metals was in agreement with Swift and modified Mecking–Kocks models respectively. In a perpendicular tensile test to the weld line, all specimens were fractured at the base metal however the strengths were somewhat higher than those of base metal. There was a significant reduction in formability caused by welding of both DP/DP and TRIP/TRIP steel weldments and the formability has been improved with the increase of the welding speed.
Y1  - 2010
U6  - http://dx.doi.org/http10.1016/j.jmatprotec.2010.08.003
SN  - 0924-0136
VL  - 210
IS  - 15
SP  - 2188
EP  - 2196
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Reisgen, Uwe
A1  - Schleser, Markus
A1  - Jerabek, Jakub
A1  - Chudoba, Rostislav
T1  - Messung der Strahlqualität einer Elektronenstrahlanlage in Umgebungsatmosphäre
JF  - Materialwissenschaft und Werkstofftechnik
N2  - In den letzten Jahrzehnten hat das Elektronenstrahlschweißen, das bereits im größeren Maßstab verwendet wird, seine Fähigkeit als qualitatives Werkzeug für die Verbindung verschiedener Materialen nachgewiesen. Das Non Vacuum Electron Beam Welding (NV-EBW) hat zahlreiche Vorteile im Vergleich zum Elektronenstrahlschweißen im Vakuum, da man unter normalem Atmosphärendruck arbeiten kann. Im Hinblick auf die reproduzierbare Qualität, insbesondere im Bereich der Massen-Fertigung, ist die Kontrolle der Strahlparameter sowie deren Einfluss auf das Schweißergebnis von großer Bedeutung. Durch eine genaue Kenntnis der Strahlkenngrößen wie des Strahldurchmessers und der Leistungsdichteverteilung kann eine Aussage über die sich ausbildende Schweißnaht sowie die Schweißbaddynamik getroffen werden. Messungen der Strahlkenngrößen im Prozess erlauben insbesondere die Untersuchung von Humping-Effekten. In diesem Beitrag wird der Prozess der Elektronenstrahlvermessung unter atmosphärischen Bedingungen beschrieben. Es wird zudem die Abhängigkeit der Elektronenstrahlcharakteristika von den verschiedenen Prozessparametern dargestellt.
Y1  - 2010
SN  - 1521-4052
VL  - 41
IS  - 1
SP  - 45
EP  - 52
PB  - Wiley-VCH
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Mukherjee, Krishnendu
A1  - Prahl, Ulrich
A1  - Bleck, Wolfgang
A1  - Reisgen, Uwe
A1  - Schleser, Markus
A1  - Abdurakhmanov, Aydemir
T1  - Characterization and modelling techniques for gas metal arc welding of DP 600 sheet steels
JF  - Materialwissenschaft und Werkstofftechnik
N2  - The objectives of the present work are to characterize the Gas Metal Arc Welding process of DP 600 sheet steel and to summarize the modelling techniques. The time-temperature evolution during the welding cycle was measured experimentally and modelled with the softwaretool SimWeld. To model the phase transformations during the welding cycle dilatometer tests were done to quantify the parameters for phase field modelling by MICRESS®. The important input parameters are interface mobility, nucleation density, etc. A contribution was made to include austenite to bainite transformation in MICRESS®. This is useful to predict the microstructure in the fast cooling segments. The phase transformation model is capable to predict the microstructure along the heating and cooling cycles of welding. Tensile tests have shown the evidence of failure at the heat affected zone, which has the ferrite-tempered martensite microstructure.
Y1  - 2010
U6  - http://dx.doi.org/10.1002/mawe.201000692
SN  - 1521-4052
VL  - 41
IS  - 11
SP  - 972
EP  - 983
PB  - Wiley-VCH
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Reisgen, Uwe
A1  - Schleser, Markus
A1  - Mokrov, Oleg
A1  - Ahmed, Essam
T1  - Shielding gas influences on laser weldability of tailored blanks of advanced automotive steels
JF  - Applied surface science
N2  - The effects of shielding gas types and flow rates on CO2 laser weldability of DP600/TRIP700 steel sheets were studied in this work. The evaluated shielding gases were helium (He), argon (Ar) and different mixtures of He and Ar. Weld penetration, tensile strength and formability (Erichsen test) of laser welds were found to be strongly dependent upon the shielding gas types. The ability of shielding gas in removing plasma plume and thus increasing weld penetration is believed to be closely related to ionization potential and atomic weight which determine the period of plasma formation and disappearance. It was found that the higher helium shielding gas flow rate, the deeper weld penetration and the lower weld width.
Y1  - 2010
U6  - http://dx.doi.org/10.1016/j.apsusc.2010.08.042
SN  - 0169-4332 (E-Journal); 0169-4332 (Print)
VL  - 257
IS  - 5
SP  - 1401
EP  - 1406
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Ahmed, Essam
A1  - Reisgen, Uwe
A1  - Schleser, Markus
A1  - Mokrov, Oleg
T1  - On formability of tailor laser welded blanks of DP/TRIP steel sheets
JF  - Science and technology of welding and joining
N2  - This paper aims to evaluate the formability of tailor welded blanks of dual phase (DP600)/transformation induced plasticity (TRIP700) steel sheets. In this work, bead on plate butt joints of 2·5 mm DP600 and 1·2 mm TRIP700 steel sheets were performed using CO2 laser beam welding. Microhardness measurements and transverse tensile testing were carried out to characterise the welds. The formability of base metals and welds were investigated by standard Erichsen test. In a perpendicular tensile test to the weld line, all specimens were fractured at the TRIP base metal, and the strengths were somewhat higher than those of base metal. There was a significant reduction in formability caused by welding of the DP600/TRIP700 steel sheets, and the formability increased with increasing welding speed.
Y1  - 2010
U6  - http://dx.doi.org/10.1179/136217110X12731414739754
SN  - 1743-2936
VL  - 15
IS  - 5
SP  - 337
EP  - 342
PB  - Maney
CY  - Leeds
ER  -