Degner Julia
Dr. Julia Degner
- Email: julia.degner@fau.de
Profile
Projects
Manufacturing of high-strength aluminium parts by forming under quenching conditions
(Third Party Funds Single)Modern material lightweight constructions are characterized by the substitution of conventional materials by high-strength steel and aluminum alloys, as these enable a dimunition of the blank thickness due to the high specific strength and thus contribute to the reduction of CO2-emissions in vehicle operation. Since these high-strength materials exhibit limited formability, the need for technologies that enable the processing of these grades efficiently, increases. One promising approach to manufacture complex, high-strength components is forming under quenching conditions. This thermomechanical processing method consists of a heat treatment and a quenching realized by the tool during the forming process. Focus of this research project is the processing of high-strength, precipitation-hardenable aluminum alloys, which are characterized by a high yield strength and tensile strengths of up to 600 MPa. The aim is to identify a robust process window for these materials based on experimental and numerical data for the manufacturing of high-strength components.
Publications
2020
2019
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Manufacturing and Characterization of Multilayered 7000-Series Aluminum with Improved Corrosion Behavior Processed via Accumulative Roll Bonding
10th Aluminium Two Thousand World Congress / 6th International Conference on Extrusion and Benchmark (ICEB) (Verona, 20. June 2017 - 24. June 2017)
In: MATERIALS TODAY-PROCEEDINGS, AMSTERDAM: 2019
DOI: 10.1016/j.matpr.2018.10.419 - , , , , :
Maßgeschneiderte Halbzeuge - Umformtechnische Herstellung von Funktionsbauteilen zur Realisierung von Leichtbaukomponenten
In: wt Werkstattstechnik - Online 109 (2019), p. 745-749
ISSN: 1436-4980 - , , , , :
Characterisation of new lubrication systems for hot forming of high strength aluminum alloys
OP Conference Series, Materials Science and Engineering
In: OP Conference Series, Materials Science and Engineering 2019
DOI: 10.1088/1757-899x/651/1/012013 - , , , , , :
Microstructural evolution and geometrical properties of TiB2 metal matrix composite protrusions on hot work tool steel surfaces manufactured by laser implantation
In: International Journal of Advanced Manufacturing Technology (2019)
ISSN: 0268-3768
DOI: 10.1007/s00170-019-04630-0
2018
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Leichtbauwerkstoffe für den modernen Automobilbau
In: Konstruktion 3 (2018), p. 50-54
ISSN: 0720-5953 - , , :
Numerische Auslegung eines kombinierten Umform- und Abschreckprozesses zur Herstellung hochfester Aluminiumbauteile
13. Erlanger Workshop Warmblechumformung 2018
In: Merklein, M. (ed.): Tagungsband zum 13. Erlanger Workshop Warmblechumformung 2018 2018
2017
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Experimental study on the flow behavior during hot forming and quenching of the high-strength aluminum alloy AA6111
XXXVI. Verformungskundliches Kolloquium
In: Lehrstuhl für Umformtechnik, Montanuniversität Leoben, Bruno Buchmayr (ed.): XXXVI. Verformungskundliches Kolloquium 2017 - , , :
Experimental study on the warm forming and quenching behaviour for hot stamping of high-strength aluminum alloys
In: IDDRG 2017 (ed.): Journal of Physics: Conference Series 2017
DOI: 10.1088/1742-6596/896/1/012055 - , :
Efficient Aluminium - Anwendung hochfester Aluminiumlegierungen im modernen Karosseriebau
37. EFB-Kolloquium Blechverarbeitung 2017
In: Europäische Forschungsgesellschaft für Blechverarbeitung (ed.): Tagungsband des 37. EFB-Kolloquiums Blechverarbeitung 2017 2017 - , , , :
Aluminiumlösungen aus maßgeschneidert wärmebehandelten Halbzeugen
In: Konstruktion 06 (2017)
ISSN: 0720-5953 - , , , :
Verbesserung der Umformbarkeit von Aluminium
In: Konstruktion 69 (2017), p. IW14-IW16
ISSN: 0720-5953
2016
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Investigation of the Unloading Yield Effect in Aluminum and Magnesium Sheet Metal Alloys at Room Temperature
In: Key Engineering Materials 716 (2016), p. 331-336
ISSN: 1013-9826
DOI: 10.4028/www.scientific.net/KEM.716.331 - , , , , :
Tailoring material properties in forming technology by a local heat treatment
In: Gronostajski, Z. (ed.): Advanced Metal Forming Processes in Automotive Industry 2016 - , , , :
Scale-up of Innovative Forming Solutions from Scientific Fundamentals to Industrial Applications - , , , , :
Numerical Investigation for Superplastic Forming Tool Development Within the Combined Process Chain of Forming and Additive Manufacturing
Int. Conf. Competitive Manufacturing (Stellenbosch, Südafrika, 27. January 2016 - 29. January 2016)
In: Dimitrov, D; Oosthuizen, T. (ed.): Int. Conf. Competitive Manufacturing 2016
URL: https://scholar.sun.ac.za/items/58ebf8f5-8f53-4443-b13f-cdca8bef39ab
2015
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Manufacturing of Innovative Aluminum Components by Combining Shear Cutting Operation and Tailor Heat Treated Blank Technique
5th International Conference on Accuracy in Forming Technology
In: Landgrebe, D.; Drossel, W.-G.; Putz, M. (ed.): 5th International Conference on Accuracy in Forming Technology 2015 - , , , , :
Process Design of Aluminum Tailor Heat Treated Blanks
In: Materials 8 (2015), p. 8524-8538
ISSN: 1996-1944
DOI: 10.3390/ma8125476 - , :
Influence of Pre-Strain and Simulated Paint-Bake on Mechanical Properties of High Strength Aluminium Alloy AA7020
In: Applied Mechanics and Materials 805 (2015), p. 115-122
ISSN: 1660-9336
Deutsch