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Professor Dr.-Ing. Mathias Liewald

Address Universität Stuttgart
Institut für Umformtechnik (IFU)
Holzgartenstraße 17
70174 Stuttgart

Projects

As Applicant
- Current projects
  - Transversal compression drawing of structural sheet metal parts by continuous slide in of flange edge (Research Grants)
  - Hybrid Bulk Forming of Plastic-Metal-Compounds (Research Grants)
  - Active process control in series production of high-precision embossed bipolar plates (Research Grants)
  - Targeted creation of residual stresses by forming of local structures in sheet thickness direction via an embossing process to improve component performance (Priority Programmes)
  - Reduction of hot crack formation in laser beam welding of high strength aluminum alloys with local creation of residual stresses by forming (Research Grants)
  - Polymer derived ceramic coatings on carbon fibers for interface customization of thixoforged aluminium matrix composites (Cf/Al-MMCs) (Research Grants)
  - Robust active surface design for multi-stage sheet metal forming processes based on data- and computation-driven surrogate modelling of springback behaviour (Priority Programmes)
  - Data-driven Prozessmodelling in metal forming technology - Coordination proposal (Priority Programmes)
  - Manufacturing of metal-metal Interpenetrating Phase Composites using semi-solid forming (Research Grants)
- Completed projects
  - Herstellung von Bauteilen großer Ziehtiefen und schrägen Seitenwänden durch modifiziertes Hydromechanisches Tiefziehen (Priority Programmes)
  - Verjüngen von Aluminium-, Kupfer-, Stahl- und Edelstrahlrohren mit radial ultraschallerregter Matrize (Research Grants)
  - Ermittlung der Innendrücke beim Querfließpressen der Magnesiumlegierung AZ31 (Research Grants)
  - Ebenes Recken von Blechen mittels konvexer Werkzeugformelemente (Research Grants)
  - Kombiniertes Halbwarm-Hohl-Querfließpressen von hochfesten Stählen (Research Grants)
  - Experimentelle und numerische tribologische Untersuchungen in der Blechumformung unter Berücksichtigung realer und rauer Kontaktflächen hinsichtlich einer Verbesserung der Genauigkeit der Prozesssimulation (Research Grants)
  - Aufbau einer adaptiven Prozesssteuerung für das Innenhochdruck-Umformen von Rohren mit großem Längen-Durchmesser-Verhältnis (Research Grants)
  - Herstellung einer Wellle-Nabe-Verbindung mittels Quer-Fließpressen (Research Grants)
  - Charakterisierung der Restumformbarkeit schergeschnittener Bauteilkanten aus Leichtbauwerkstoffen und deren Übertrag auf ein phänomenologisches Versagensmodell (Research Grants)
  - Verfahrensentwicklung zur Rohr-Massivumformung beim Quer-Fließpressen von Flanschen und Bunden mit und ohne Außenkontur (Priority Programmes)
  - Herstellung hybrider intelligenter Konstruktionselemente durch teilflüssige Formgebung (Research Units)
  - Tribosystems for cold forming processes based on volatile lubricants and laser structured surfaces (Priority Programmes)
  - Basic Investigations on Hollow Lateral Extrusion of Additional Shape Elements (Research Grants)
  - Development of a layered composite material with one-sided stiffeners and thin damping layer and characterization of its formability (Research Grants)
  - Production of a Metal/Plastic Hybrid Structure via Impact Extrusion (Research Grants)
  - New methodology of springback compensation for Advanced High Strength Steels based on geometrical modifications (Research Grants)
  - Inductive heating and semi-solid forming of high-melting materials (Research Grants)
  - Joining of metal and fibre components based on the semi-solid forming process (Research Grants)
  - Process combination of lateral extrusion and shear forming with straight tool motion to manufacture crankshaft-like components (Research Grants)
  - Integration of functional elements in sheet metal components through deep-drawn double blanks (Research Grants)
  - Tribosystems for cold forming processes based on volatile lubricants and laser structured surfaces (Priority Programmes)
  - Springback compensation by stress superposition in forming of ultra high-strength steel sheets (Research Grants)
  - Development of 3D joining surface geometries for shaft hub connections manufactured by lateral extrusion (Research Grants)
  - Production of bead-shaped parts by cold extrusion of semi-finished products fabricated by composite hot extrusion (Research Grants)
  - Hybrid interaction during and after thixoforging of multi material systems (Research Grants)
  - Production and characterization of complex folded cellular structures made of sheet metal (Research Grants)
  - Development of a process for the two-stage production of gears (Research Grants)
  - Manufacturing of application-specific components from particlereinforced aluminium matrix composites using a combination of powder presses and thixoforging (Research Grants)
  - Cold extrusion of gears with selective reduction of friction surface - Guided Material Flow (GMF) process (Research Grants)
As Leader
- Completed projects
  - Thermomechanisches Prüfsystem (Major Research Instrumentation)
  - Servopresse für die Blechumformung (Major Research Instrumentation)
  - Servopresse für die Massivumformung (Major Research Instrumentation)
As Spokesperson
- Current projects
  - SPP 2422: Data-driven process modelling in metal forming technology (Priority Programmes)
As Participating Researcher
- Completed projects
  - GSC 262: Graduate School of Excellence advanced Manufacturing Engineering (GSaME) (Graduate Schools)
As Participating Person
- Completed projects
  - SPP 1676: Dry Metal Forming - Sustainable Production through Dry Processing in Metal Forming (Priority Programmes)
As Co-Applicant
- Completed projects
  - Fakultätsübergreifende interdisziplinäre Projektbetreuung und -präsentation, Projektmanagement (Research Units)
As Co-Investigator
- Completed projects
  - Basic investigations for increasing the performance of stone machining with tangentially vibrating, ultrasonically excited tools (Research Grants)

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