Publication

 

Subproject A1

A. Haeusler, B. Mehlmann, A. Olowinsky, A. Gillner, R. Poprawe: Efficient Copper Microwelding with Fibre Lasers using Spatial Power Modulation, In: Lasers in Engineering, 36, S. 133-146, 2017

A. Haeusler, A. Schürmann, C. Schöler, A. Olowinsky, A. Gillner, R. Poprawe: Quality Improvement of Copper Welds by Laser Micro Welding with the Usage of Spatial Power Modulation, In: Journal of Laser Applica-tions, Vol. 29 (2), 2017, DOI: 10.2351/1.4983505

A. Haeusler, B. Gropp, A. Olowinsky, A. Gillner, R. Poprawe: Energy input of a laser micro welding process by using spatial power modulation, Proc. 36th International Congress on Applications of Lasers and Electro-Optics (ICALEO), 2017

A. Haeusler, S. Hollatz, A. Olowinsky, A. Gillner, R. Poprawe: Quality improvement of the surface of laser micro weld by using a dual beam setup, Proc. 36th International Congress on Applications of Lasers and Electro-Optics (ICALEO), 2017

P. Heinen, A. Haeusler, F. Eichler, A. Olowinsky, A. Gillner, R. Poprawe: Influence of spatial power modulation on pore and crack formation in laser beam welding of aluminum, Proc. 2nd Smart Laser Processing Conference, 2017

Subproject A2

U. Reisgen, R. Sharma, S. Gach, S. Olschok, J. Francis, K. Bobzin, M. Oete, S. Wiesner, M. Knoch, A. Schmidt: Residual stress measurement in AlSi alloys, In: Materialwissenschaften und Werkstofftechnik. 48, 2017, 12. ISSN: 0933-5137

U. Reisgen, R. Sharma: In-situ strain measurement of submerged arc welding process through application of electronic speckle pattern interferometry, In: Journal of Welding and Joining, Vol. 35 (4), S. 82-88, 2017, DOI: 10.5781/JWJ.2017.35.4.12

U. Reisgen, R. Sharma: Comparative study of phase transformation temperatures in high strength steel weld metals, In: Materials Testing, Vol. 59, Issue 4, S. 344-347, 2017, DOI: 10.3139/120.111003

Sharma, R.; Reisgen, U.; Hofmann, M.: Comparison of Submerged Arc Welding Process Modification Influence on Thermal Strain by in-situ Neutron Diffraction, In: Materials Research Proceedings, Vol. 2, S. 533-538, DOI: 10.21741/9781945291173-90, 2017

Subproject A3

C. Schöler, A. Haeusler, A. Gillner, V. Karyofylli, M. Behr, W. Schulz, M. Niessen: Hybrid Simulation of Laser Deep Penetration Welding, In: Materialwissenschaften und Werkstofftechnik. 48, 2017, 12. ISSN: 0933-5137

C. Schöler, M. Nießen, U. Jansen, W. Schulz: A fast method for automated calibration of heat sources, Sommitsch, C.; Enzinger, N.; Mayr, P. (Hg.): Mathematical Modelling of Weld Phenomena 11, Verlag der Technischen Universität Graz, ISBN: 978-3-85125-490-7 , S. 593-610, 2016

Subproject A4

O. Mokrov, O. Lisnyi, M. Simon, U. Reisgen, M. Laschet, M. Apel: Numerical investigation of droplet impact on the welding pool in gas metal arc welding, In: Materialwissenschaften und Werkstofftechnik. 48, 2017, 12. ISSN: 0933-5137

U. Reisgen, O. Mokrov, O. Lisnyi: Mathematical Model of an Arc Welding Weld Seam Formation on the Basis of Three Dimensional CFD Simulations, In: C. Sommitsch, N. Enzin­ger, P. Mayr Hrsg. Mathematical Modelling of Weld Phenomena 11, Graz: Verlag der Techni­schen Universität Graz, S. 753-772, ISBN: 978-3-85125-490-7

Subproject A5

K. Bobzin, M. Öte, S. Wiesner, A. Schmidt, M. Apel, R. Berger, A. Aretz, J. Mayer: Formation of the reaction zone between Sn-Cu brazing fillers and Al-Si-Mg alloys: experiments and thermodynamic analysis. In: Materialwissenschaften und Werkstofftechnik. 48, 2017, 12. ISSN: 0933-5137

K. Bobzin, M. Öte, S. Wiesner, P. Rochala, J. Mayer, A. Aretz, R. Iskandar, A. Schwedt: Investigation of the effect of rapidly solidified braze ribbons on the microstructure of brazed joints, In: IOP conference series: Materials Science and Engineering [online]. 181, 2017. DOI: 10.1088/175799X/181/1/012006

K. Bobzin, M. Öte, S. Wiesner, L. Pongratz, J. Mayer, A. Aretz, R. Iskandar, A. Schwedt: Characterisation of solidification processes during transient liquid phase bonding with rapidly solidified brazing ribbons from the melt spinning process, Abstract in: OP conference series: Materials Science and Engineering [online]. 118, 2016. DOI: 10.1088/1757-899X/118/1/011002 .

Subproject A6

R. Iskandar, P. Rochala, S. Wiesner, M. Öte, A. Schwedt, K. Bobzin, J. Mayer, T. E. Weirich: Microstructural analysis of Germanium modified Tin-Copper brazing filler metals for Transient Liquid Phase (TLP) Bonding of Aluminum, In: Materialwissenschaften und Werkstofftechnik. 48, 2017, 12. ISSN: 0933-5137

Subproject A7

U. Reisgen, S. Olschok, R. Sharma, S. Gach: Influence on Martensite-start-temperature and volume expansion of Low-Transformation-Temperature (LTT) materials used for residual stress relief in beam welding, In: Materialwissenschaften und Werkstofftechnik. 48, 2017, 12. ISSN: 0933-5137

J. Francis, S. Gach, S. Olschok, A. Haeusler, A. Gillner, R. Poprawe, U. Reisgen: Characterisation of Quasi-Stationary Temperature Fields in Laser Welding by Infrared Thermography,
In: Materialwissenschaften und Werkstofftechnik. 48, 2017, 12. ISSN: 0933-5137

S. Gach, S. Olschok, J. Francis, U. Reisgen: Confirmation of tensile residual stress reduction in electron beam welding by use of low transformation temperature materials (LTT) as localised metallurgical injection – Part 2: Residual stress measurement, In: Materials Testing 59, S. 618- 624, 2017, DOI 10.3139/120.111046

S. Gach, A. Schwedt, S. Olschok, U. Reisgen, J. Mayer: Confirmation of tensile residual stress reduction in electron b eam welding using low transformation temperature materials (LTT) as localized metallurgical injection – Part 1: Metallographic analysis; In: Materials Testing 59, S. 148-154, 2017, DOI: 10.3139/120.110957

U. Reisgen, S. Olschok, S. Gach: Nutzung von Low-Transformation-Temperature-Werkstoffen (LTT) zur Eigenspannungsreduzierung im Elektronenstrahlschweißprozess, In: Materialwissenschaft und Werkstofftechnik, S. 1-11, 2016, DOI: 10.1002/mawe.201600549

Subproject A8

D. Arntz, D. Petring, S. Soyanov, U. Jansen, F. Schneider, R. Poprawe: In-situ-visualization of multiple reflections on the cut flank during laser cutting with 1 micron wavelength, Proceedings of the ICALEO Conference (Paper 603), 2017

D. Arntz, D. Petring, R. Poprawe, U. Janssen: Advanced trim-cut technique to visualize melt flow dynamics inside laser cutting kerfs, In: J. Laser Appl., Vol. 29 (2), 2017, DOI: 10.2351/1.4983261

Subproject A9

U. Jansen, D. Arntz, D. Petring, R. Poprawe, W. Schulz: An Automatable Algorithm for Measurement of Fluid Flow during Laser Fusion Cutting Using In-Situ Trim Cut Analysis. In: Materialwissenschaften und Werkstofftechnik. 48, 2017, 12. ISSN: 0933-5137

U. Jansen, M. Niessen, T. Hermanns, D. Arntz, R. Poprawe, W. Schulz: Boundary Layer Approximation for Melt Film Dynamics in Laser Fusion Cutting. In: The 22nd International Congress on Modelling and Simulation (MODSIM2017). Hobart, Tasmania, Australia, 3. bis 8. Dezember 2017.

Subproject A10

K. Bobzin, M. Öte, J. Schein, S. Zimmermann: Numerical Study on Plasma Jet and Particle Behavior in Multi-Arc Plasma Spraying, In: Journal of Thermal Spray Technology. 26, 2017, 5, 811-830. ISSN 1059-9630. DOI:10.1007/s11666-017-0564-3

K. Bobzin, Ch. Hopmann, M. Öte, M. A. Knoch, I. Alkhasli, H. Dornebusch, M. Schmitz: Tailoring the heat transfer on the injection moulding cavity by plasma sprayed ceramic coatings, In: IOP Conference Series: Materials Science and Engineering. 181, 2017, 12013. ISSN 1757-8981, DOI:10.1088/1757-899X/181/1/012013

K. Bobzin, M. Öte, M. A. Knoch, I. Alkhasli, U. Reisgen, O. Mokrov, O. Lisnyi: Simulation of the Particle Melting Degree in Air Plasma Spraying, In: Journal of Physics: Conference Series. 825, 2017, 12002. ISSN 1742-6588, DOI:10.1088/1742-6596/825/1/012002

K. Bobzin, M. Öte: Modeling Plasma–Particle Interaction in Multi-Arc Plasma Spraying, In: Journal of Thermal Spray Technology. 26, 2017, 3, 279-291. ISSN 1059-9630. DOI: 10.1007/s11666-016-0514-5

K. Bobzin, M. Öte: Numerical Coupling of the Particulate Phase to the Plasma Phase in Modeling of Multi-Arc Plasma Spraying, In: Journal of Physics: Conference Series. 825, 2017, 12003. ISSN 1742-6588, DOI:10.1088/1742-6596/825/1/012003

Subproject A11

N. Pirch, M. Niessen, S. Linnenbrink, A. Gasse, K. Wissenbach, J. H. Schleifenbaum, R. Poprawe: Influence of process strategy on distortion and residual stresses for the powder based laser cladding process, In: Materialwissenschaften und Werkstofftechnik. 48, 2017, 12. ISSN: 0933-5137 5137

N. Pirch, M. Niessen, S. Linnenbrink, T. Schopphoven, A. Gasser, R. Poprawe, C. Schöler, D. Arntz, W. Schulz: Temperature field and residual stress distribution for laser metal deposition. In: Proceedings of the ICALEO Conference. Atlanta, 22. bis 26. Oktober 2017. 48, 2017, 12.

N. Pirch, S. Linnenbrink, A. Gasser, K. Wissenbach, R. Poprawe: Analysis of track formation during laser metal deposition, In: Journal of Laser Applications 2017, 29, 022506,
DOI: http://dx.doi.org/10.2351/1.4983231

Subproject B1

Ch. Hopmann, P. Nikoleizig, H. Dornebusch, T. Schneppe: Minimization of Warpage for Injection Moulded Parts by Inverse Thermal Mould Design, In: International Polymer Processing, 2017

Ch. Hopmann, A. Bühring-Polaczek, T. Schneppe, N. Wolff, M. Theunissen: Investigation on the transferability of algorithms for the numerical optimization of cooling channel design in injection molding on metal gravity die casting, In: Materialwissenschaften und Werkstofftechnik. 48, 2017, 12. ISSN: 0933-5137

Ch. Hopmann, P. Nikoleizig: Inverse thermal mold design for injection molds: Adressing the local cooling demand as quality function for an inverse heat transfer problem, In: International Journal of Material Forming [online]. 24.12.2016 Verfügbar unter: https://www.springerprofessional.de/en/inverse-thermal-mold-design-for-injection-molds/11959544 ISSN 1960-6214

Ch. Hopmann, P. Nikoleizig: Inversed Cooling Channel Design for Injection Moulds Based on Local Cooling Demand and Material. In: SPE ANTEC Conference. Indianapolis, 23 – 25. Mai 2016

Ch. Hopmann, M. Schöngart, P. Nikoleizig: Minimisation of warpage for injection moulded parts with reversed thermal mould design. In: Regional Conference – Polymer Processing Society. Graz, 21.-25. September 2015. Melville: AIP Publishing, S. 20016-1 – 20016-5. ISBN 978-0-7354-1441-9 .

Subproject B2

F. Zwicke, M. Behr, S. Elgeti: Predicting Shrinkage and Warpage in Injection Molding: Towards Automatized Mold Design. 2017, In: AIP Conference Proceedings, 1896

F. Zwicke, S. Eusterholz, S. Elgeti: Boundary-Conforming Free-Surface Flow Computations: Interface Tracking for Linear, Higher-Order and Isogeometric Finite Elements, In: Computer Methods in applied Mechanics and Engineering, 326, S. 175-192

F. Zwicke, P. Knechtges, M. Behr, S. Elgeti: Automatic Implementation of Material Laws: Jacobian Calculation in a Finite Element Code with TAPENADE, 2016, In: Computers & Mathematics with Applications, 72, S. 2808-2822

S. Elgeti, H. Sauerland: Deforming Fluid Domains Within the Finite Element Method: Five Mesh-Based Tracking Methods in Comparison, Archives of Computational Methods in Engineering, 2016,
In: Archives of Computational Methods in Engineering, 23(2), S. 323-361

Subproject B3

Ch. Hopmann, M. Schmitz: Development of A Segmented Temperature Control For Targeted Solidification In Injection Moulding, In: Journal of International Polymer Processing, 2017

Ch. Hopmann, M. Theunissen, M. Schmitz, P. Nikoleizig: Development of a highly segmented temperature control in injection moulding for reduced warpage and increased process stability,
In: AIP Conference Proceedings, 2017

Subproject B4

J. Wipperfürth, Ch. Hopmann: A concept of an injection compression mould for non-invasive ultrasound tomographic temperature measurements. In: Eruope Africa Conference of the Polymer Processing Society, Dresden, 27. bis 29. Juni 2017

Ch. Hopmann, J. Wipperfürth, M. Schöngart: Spatially Resolved Temperature Measurement In Injection Moulding Using Ultrasound Tomography, In: AIP Conference Proceedings [online], 2017

Ch. Hopmann, J. Wipperfürth: Ultrasound Tomography for Spatially Resolved Melt Temperature Measurements in Injection Moulding Processes, In: Journal of Applied Mechanical Engineering 6, S. 1000264, 2017, DOI: 10.4172/2168-9873.1000264

Ch. Hopmann, M. Spekowius, J. Wipperfürth, M. Schöngart: A concept for non-invasive temperature measurement during injection moulding processes, AIP Conference Proceedings 1713, S. 40009, 2016, DOI: 10.1063/1.4942274

Ch. Hopmann, E. Poppe, M. Spekowius, J. Wipperfürth, R. Spina, G. Laschet: Morphologiebasierte Vorhersage inhomogener Werkstoffeigenschaften, 28. Internationales Kolloquium Kunststofftechnik: Integrative Kunststofftechnik 2016. Aachen: Shaker-Verlag. ISBN: 978-3-8840-4033-3, S. 517-532

Subproject B5

V. Karyofylli, M. Schmitz, Ch. Hopmann, M. Behr,: Novel Discretization Methods for Improved Simulation Precision in Injection Molding, In: Materialwissenschaften und Werkstofftechnik. 48, 2017, 12. ISSN: 0933-5137

V. Karyofylli, M. Frings, S. Elgeti, M. Behr: Simplex space-time meshes in two-phase flow simulations, In: International Journal for Numerical Methods in Fluids 2017, DOI: 10.1002/fld.4414

M. Behr, V. Karyofylli: Simplex space-time meshes in mold filling simulations, eingeladener Tagungsbericht in Oberwolfach Reports 15/2017: 10-13, 2017, DOI: 10.4171/OWR/2017/15

Subproject B6

M. Harmel, R. A. Sauer: Boundary element and finite element analysis for the efficient simulation of fluid-structure interaction and its application to mold filling processes, Proceedings in Applied Mathematics and Mechanics. 2017

M. Harmel, R. A. Sauer, D. Bommes: Volumetric Mesh Generation from T-spline Surface Representations, In: Comput. Aided Des. 82: S.13-28, 2017, DOI: 10.1016/j.cad.2016.07.017

R. Rasool, R. A. Sauer, C. J. Corbett: A strategy to interface isogeometric analysis with Lagrangian finite elements - Application to incompressible flow problems, In: Comput. Fluids, 127, S. 182-193, 2016, DOI: 10.1016/j.compfluid.2015.12.016

Subproject B7

G. Laschet, J. Wipperfürth M. Spekowius, R. Spina, Ch. Hopmann, M. Apel: Effective thermal properties of an a -iPP injection moulded part by a multiscale approach, In: Materialwissenschaften und Werkstofftechnik. 48, 2017, 12. ISSN: 0933-5137

G. Boussinot, M. Apel: Phase field and analytical study of mushy zone solidification in a static thermal gradient: from dendrites to planar front, In: Acta Materialia 122, S. 310-321, 2017, DOI: 10.1016/j.actamat.2016.09.053

G. Laschet, T. Vossel, N. Wolff, M. Apel, A. Bührig-Polaczek: Multiscale solidification simulation of an axisymmetric A356 component in die casting, Proc. of the 6th Decennial Int. Conf. on Solidification Processing (SP17), Old Windsor, UK, July 2017, S. 576-580., SS Media, U.K., ISBN 978-1-908549­29-7.

R. Berger, M. Apel, G. Laschet: Evolution of permeability during solidification in simulated A356 micro-structures, Proc. of the 6th Decennial Int. Conf. on Solidification Processing (SP17), Old Windsor, UK, July 2017, S. 272-275, SS Media, U.K., ISBN 978-1-908549­29-7.

B. Böttger, C. Haberstroh, N. Giesselmann: Cross-permeability of the semi-solid region in directional solidification: a combined phase-field and lattice-Boltzmann simulation approach, 2016, JOM, Vol. 68(1), S. 27-36, 2016, DOI: 10.1007/s11837-015-1690-3

Subproject B8

N. Wolff, B. Pustal, T. Vossel, G. Laschet, A. Bührig-Polaczek: Development of an A356 Die Casting Setup for Determining the Heat Transfer Coefficient Depending on Cooling Conditions, Gap Size, and Contact Pressure, SFB Sonderheft, 2017

N. Wolff, B. Pustal, T. Vossel, G. Laschet, A. Bührig-Polaczek: Entwicklung eines Versuchsaufbaus mit adaptiver Kühlung und Ermittlung des spalt- und kontaktdruckabhängigen Wärmeübergangskoeffizienten, Gießerei Spezial, 2017

M. Ahmadein, B. Pustal, N.Wolff, A. Bührig-Polaczek: Determination and Validation of the Gap Dependent Heat Transfer Coefficient during Permanent Mold Casting of A356 Aluminum Alloy” SFB Sonderheft, 2017

M. Ahmadein, N.Wolff, B. Pustal, A. Bührig-Polaczek: Parameteridentifikation für ein spalt- und druckabhängiges Wärmeübergangsmodell für unterschiedliche Abkühlbedingungen im Dauerformguss, In: Gießerei Spezial, 2017

Subproject B9

T. Vossel, B. Pustal A. Bührig-Polaczek: Modellierung der Erstarrungskinetik kolumnarer und äquiaxialer Kornstrukturen zur gefügebasierten Interpolation der Werkstoffeigenschaften im Hinblick auf die Verzugsvorhersage, In: Gießerei Spezial, 2017

B. Pustal, H. Behnken, T. Vossel, G. Laschet, N. Wolff, A. Bührig-Polaczek: Modellierung des Verzugs eines oberflächennah gekühlten A356 Gussteils mit unterschiedlichen Wärmeübergangs- und Erstarrungsansätzen, In: Gießerei Spezial, 2017