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  - https://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  - 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  - 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  - https://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  - https://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  - 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  - 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  - CHAP
A1  - Reisgen, Uwe
A1  - Schleser, Markus
A1  - Scheik, Sven
A1  - Michaeli, Walter
A1  - Grönlund, Oliver
A1  - Neuß, Andreas
A1  - Wunderle, Johannes
A1  - Poprawe, Reinhart
A1  - Rösner, A.
A1  - Bobzin, Kirsten
A1  - Schläfer, Thomas
A1  - Theiß, Sebastian
A1  - Kutschmann, Pia
A1  - Haberstroh, Edmund
A1  - Flock, Dustin
A1  - Bührig-Polaczek, Andreas
A1  - Jakob, M.
ED  - Thoben, Klaus-Dieter
T1  - Novel process chains for the production of plastics/metal-hybrids
T2  - 17th International Conference on Concurrent Enterprising (ICE 2011) : Aachen, Germany, 20 - 22 June 2011
Y1  - 2011
SN  - 978-1-457-70772-8 ; 978-3-943024-05-0
SP  - 596
EP  - 604
PB  - IEEE
CY  - Piscataway, NJ
ER  - 
TY  - CHAP
A1  - Reisgen, Uwe
A1  - Schleser, Markus
A1  - Schoene, Jens
A1  - Hegger, Josef
A1  - Gallwoszus, Jörg
A1  - Feldmann, Markus
A1  - Kopp, Maik
A1  - Gündel, Max
ED  - Cairns, John W.
T1  - Investigation on bond mechanisms of innovative small-scale shear connectors between steel and concrete
T2  - Bond in concrete 2012. Vol. 2. Bond in new materials and under severe conditions
Y1  - 2012
SN  - 978-88-907078-3-4
SP  - 893
EP  - 898
PB  - Publisher creations
CY  - Manerbio, Brescia
ER  - 
TY  - CHAP
A1  - Reisgen, Uwe
A1  - Schoene, Jens
A1  - Schleser, Markus
A1  - Gries, Thomas
A1  - Glowania, Michael
T1  - Impregnated textile reinforcements for concrete applications
T2  - European Coatings Congress : Nürnberg, Germany, 30.3. - 1.4. 2009
Y1  - 2009
ER  - 
TY  - CHAP
A1  - Reisgen, Uwe
A1  - Schoene, Jens
A1  - Schleser, Markus
A1  - Jerabek, Jakub
A1  - Keil, Allessandra
ED  - Brameshuber, Wolfgang
T1  - Theoretical and experimental investigations on textile-reinforced concrete spalling behavior
T2  - Textile reinforced concrete : 2nd ICTRC : International RILEM Conference on Material Science : Aachen Germany, September 6 - 8, 2010. Vol. 1. (RILEM Proceedings PRO ;  75)
Y1  - 2010
SN  - 978-2-35158-106-3
SP  - 153
EP  - 162
PB  - RILEM Publ.
CY  - Bagneux
ER  -