Doctoral Theses

2012

• Thomas Stöhr: Analysis and description of the mechanical material behavior of presshardenable boron-manganese steels (18.12.2012)
• Markus Kaupper: Bending of advanced high strength steels – Forming behavior and limits of bendability (19.10.2012)
• Thomas Kroiß: Model-based process layout for cold forging in consideration of tool and press deflection (09.08.2012)
• Jonas Danzeisen: Deformation and failure behavior of TRIP-steel (27.06.2012)
• Peter Feuser: An approach to the production of hot-formed body in white parts with functionally graded material properties: temperated forming tools. Process window, process simulation and functional characterization (01.06.2012)
• Martin Brandhuber: Improvement of prediction of spot weld failure for ultra high strength steel grades (28.03.2012)

2011

• Murat Arbak: Material adapted design of cold forging tools exemplified by powder metallurgi-cal tool steels and ceramics (13.12.2011)
• Kay Wagner: Load-oriented cold forging tools by local optimised tool surfaces (06.12.2011)

2010

• Raoul Plettke: Multi-objective optimization of complex actuator systems for laser micro adjustment (27.10.2010)
• Massimo Cojutti: Strategies to improve the forming results by the hydroforming of tubes and sheet pairs (09.08.2010)
• Stephan Weidel: Basic investigations on the contact state between tool and workpiece of forming processes considering tribological aspects (19.04.2010)
• Alexander Diehl: Size Effects in bending processes - development of a methodology for identification and quantification (12.04.2010)
• Stefan Geißdörfer: Design and development of a mesoscopic model to consider size-effects at bulk metal forming by using finite element simulation (25.02.2010)

2009

• Till Laumann: Qualitative and quantitative evaluation of the crash appropriateness of high-strength steels (17.12.2009)
• Detlev Staud: Efficient process design for the forming of local heat treated and welded aluminium sheet metal (07.12.2009)
• Uwe Vogt: Design of aluminum Tailored Heat Treated Blanks under quasi-series conditions (24.07.2009)
• Stephan Manuel Dörfler: Friction stir welding of roll-plated precursor material and aluminium sheet metal for the production of aluminium-foam-sandwich structures (23.06.2009)
• Steffen Polster: Laser transmission welding of transparent polymer parts (12.02.2009)

2008

• Andreas Blankl: Investigations to improve process robustness in sheet hydroforming with pre- or post laser welding operations (10.12.2008)
• Jürgen Lechler: Fundamental investigations on the description and the modeling of quenchenable boron-manganese steels (09.12.2008)
• Arthur Giera: Processtechnical investigations in friction stir welding of metallic materials (16.07.2008)
• Stephan Roth: Basic investigations of excimer laser ablation under liquid films (01.07.2008)
• Wolfgang Hußnätter: Fundamental Investigations on the Experimental Determination and on the Modeling of Yield Loci at Elevated Temperatures (03.03.2008)

2007

• Ralf Völkl: Stochastic Simulation for the Optimisation of Tool Life and Net-Shape Production in Cold Forging (20.12.2007)
• Massimo Tolazzi: Fundamental Investigations on Sheet Hydroforming of Reinforced Frame Structures (14.12.2007)
• Thomas Frick: Investigation of the process decisive beam / matter interaction for laser transmission welding of plastics (14.11.2007)
• Klaus Lamprecht: Hydroforming of deep-drawn performs with special consideration of tailor-made products (07.09.2007)
• Joachim Hecht: Material Characterization and Process Control of Double-Sheet Hydroforming of Magnesium Alloys (31.08.2007)
• Cornelia Hoff: Investigation of the influencing process parameters on hot forming of the high strength steel 22MnB5 (30.08.2007)
• Rainer Kohlbauer: Knowledge-based methods for the simulation-aided process design of sheet metal hydroforming processes (15.06.2007)
• Michael Kerausch: Simulation based process layout for Tailored Heat Treated Blanks – enlargement of the process limits for deep drawing of aluminium sheet metals (26.03.2007)

2006

• Hans-Joachim Krauß: Laser beam induced pyrolysis of preceramic polymers (14.11.2006)
• Uwe Popp: Basic Investigation of Laser Texturing of Cold Forming Tools (31.10.2006)
• Manfred Dirscherl: Non-thermal Micro-Adjustment by Ultrashort Laser Pulses (06.10.2006)
• Attila Komlódi: Detection and Prevention of Hot Cracks during Laser Welding of Aluminium Alloys Using Advanced Simulation Methods (05.10.2006)
• Marion Merklein: Characterisation of sheet metals for light weight constructions (26.07.2006)
• Alexander Hofmann: Hybrid laser plastic welding (19.07.2006)
• Alexander Putz: Basic investigations on the measurement of the real prestressing conditions of cold forging tools by ultrasonics (01.03.2006)
• Martin Prechtl: Automated Layered Manufacturing with Metallic Foils ? System and Process Technology (21.02.2006)
• Markus Meidert: Tool life estimation of cold forging tools (08.02.2006)

2005

• Markus C. Hahn: Fundamental Investigations for Manufacturing of Lightweight Sandwich Components with Aluminium Foam Core (26.09.2005)
• Adrienn Cser: Laser Beam Melt Ablation - Process Analysis and Modelling (04.08.2005)
• Markus Stark: Design and Manufacturing of Highly Precise Fibre Collimator Arrays (31.05.2005)
• Markus Meiler: High-Volume Capability of Dry Film Lubricated Aluminium Sheet Metal - Basic Investigations Focused at Tribology, Deep-Drawing Performance and Real-Part Trials (13.05.2005)
• Matthias Pitz: Laser Assisted Bending of High Strength Multi Phase Steels (10.05.2005)
• Marco Nock: Bending Using Elastomere Tools ?- Modelling, Process Design and Distinguishment by the Example of Tube Bending (15.04.2005)
• Frank Niebling: Qualification of a Process Chain for Laser Sintering of Metal Parts (23.03.2005)

2004

• Emil Egerer: Bulk metal forming of metallic microparts at elevated temperature (15.12.2004)
• Meik Vahl: Investigations on the determined control of the material flow in sheet metal hydroforming (30.11.2004)
• Angelika Hutterer: Development of process monitored closed loop control systems for flexible forming systems (02.09.2004)
• Thorsten Schell: Fundamental investigation on a novel Rapid Tooling technology for sheet metal forming (06.08.2004)
• Thomas Wurm: Laser adjustment with actuators ? Development of a modular system for the computer aided design and optimisation of complex actuator geometries (12.07.2004)
• Martino Celeghini: Fundamental investigation on the influence of part shape and material properties in sheet hydroforming (07.06.2004)
• Thomas Neudecker: Tribological properties of ceramic sheet metal forming tools - influence of a surface finish by excimer laser radiation (19.01.2004)

2003

• Ralph Hohenstein: Design of highly dynamic sensor and control systems for adaptive laser processing (15.12.2003)
• Andreas Kach: Computer-Aided Adaptation of Machining Paths for Laser Cutting to Workpiece Deviations (11.12.2003)
• Stefan Hierl: System and process technology for the simultaneous soldering with diode laser radiation of elctronic devices (21.11.2003)
• Ralf Eckstein: Material behaviour in micro blanking and bending processes (26.05.2003)
• Frank Meyer-Pittroff: Excimer laser beam bending of thin metallic foils using a homgeneous beam profile (15.04.2003)

2002

• Hinnerk Hagenah: Simulation based determination of the expected accuracy for sheet metal bending (19.12.2002)
• Oliver Kreis: (19.12.2002)
• Stefan Novotny: Hydroforming of sheets from aluminum and magnesium alloys at elevated temperature (07.11.2002)
• Matthias Negendanck: New actuator and sensor systems for laser welding processing heads (05.08.2002)
• Achim Hofmann: Enhancement of the formability of aluminum alloys by the use of process optimized blanks (12.06.2002)
• Thomas Fröhlich: Simultaneous Soldering of electronic component leads by the use of Diode Lasers (21.05.2002)
• Stefan Kaufmann: Basic Investigation on Nd:YAG-laser beam joining of silicon for opto-electronic components (23.04.2002)
• Gerd Eßer: Laser assisted generation of circuit structures on thermoplastics for MID technology (17.04.2002)
• Marc Fleckenstein: Quality of laser-joined contacts of electronic devices (15.04.2002)
• Mark Geisel: Process monitoring and process control at laser beam welding by means of nonlinear dynamics (22.02.2002)
• Jan-Oliver Brassel: Process-control with laser-beam micro-welding (15.02.2002)
• Michael Schmidt: Closed loop control for laser micro welding in electronics (11.02.2002)
• Nicolas Tiesler: (01.01.2002)
• Thomas Pohl: (01.01.2002)
• Matthias Negendanck: (01.01.2002)

2001

• Nicolas Tiesler: Fundamental investigations on the extrusion of metal microparts (18.12.2001)
• Thomas Pohl: Weld quality and formability of laser welded blanks of aluminium alloys (20.11.2001)
• Marion Merklein: Laser forming of aluminium alloys - influencing of microstructure and mechanical properties (28.05.2001)
• Alexander Huber: Adjustment of pre-assembled systems with the Nd:YAG-Laser using actuators (06.04.2001)
• Burkhard Müller: Laser adjustment with excimer laser - process parameters and models for the construction of actuators (28.02.2001)
• Lars Pursche: Methods for the computer aided programming of 3D laser micro processing (01.01.2001)

2000

• Thomas Menzel: Knowledge-based methods for characterisation and assessment of innovative manufacturing processes (31.12.2000)
• Thomas Hennige: Flexible shaping of sheet metal parts by laser forming (21.12.2000)
• Simulation Based Process Design for the Hydroforming of Sheet Metal Pairs (19.12.2000)
• Bernd Falk: Simulation-based lifetime prediction for cold forging tools (07.09.2000)
• Christian Hinsel: Fatigue fracture of hard coated tool steels in cold forging (26.07.2000)

1999

• Frank Breitenbach: Image Processing System Employed for the Detection of Geometrical Lead-Parameters of SMDs (27.10.1999)
• Frank Breitenbach: (27.10.1999)
• Jürgen Knoblach: Contribution on Computer Aided, Cause-related Offer Costing for Sheet Metal Parts by Knowledge-based Methods (26.10.1999)
• Philipp Hein: Hydroforming of sheet metal pairs: modelization, process layout and process control (07.09.1999)
• Wolfgang Becker: Surface modification and tribological properties of excimer laser machined ceramics (22.07.1999)
• Doris Schubart: Process modeling and technological development of laser beam caving (18.03.1999)
• Horst Arnet: Section Bending with Kinematic Shaping (21.01.1999)

1998

• Axel Sprenger: Adaptive Stretch Bending of Aluminum Extrusions (22.12.1998)
• Hans-Jörg Pucher: Investigation of the process sequence metal forming, placing and laser beam soldering of micro contacts (12.11.1998)
• Arjan Coremans: Direct laser beam sintering of metal powder process model, system technology, properties of laser beam sintered metal parts (04.11.1998)
• Roland Kals: Fundamentals on the miniaturization of sheet metal working processes (09.06.1998)
• Volker Franke: (01.01.1998)
• Matthias Glasmacher: (01.01.1998)
• Arthur Meßner: (01.01.1998)
• Sorin Niederkorn: (01.01.1998)
• Markus Pfestorf: (01.01.1998)
• Stefan Schuberth: (01.01.1998)
• Michael Schwind: (01.01.1998)

1997

• Matthias Glasmacher: Process and System Technologies for Laserbeam Micro Welding (17.12.1997)
• Stefan Schuberth: Quality Control Loop to the focus position of CO2 High Power Lasers for Laser Beam Welding using Adaptive Optics (09.12.1997)
• Arthur Meßner: Cold Metal Forming of Microparts - Material Behavior, Friction, Process Design (04.12.1997)
• Volker Franke: Integrated Planning and Design of Bending Tools (21.11.1997)
• Markus Pfestorf: Functional 3-D Surface Parameters For Metal Forming (14.10.1997)
• Norbert Neubauer: Adaptive beam delivery for CO2 laser machines (14.10.1997)
• Jürgen Kraus: Laser Forming of Extrusions (29.09.1997)
• Frank Backes: Technology orientated path planning for 3D laser processing (11.08.1997)
• Michael Schwind: Nondestructive determination of mechanical properties of sheet metal using the eddy current method (22.07.1997)
• Sorin Niederkorn: Measuring Device for the Investigation of the Friction Mechanism in Metal Forming (22.07.1997)
• Frank Backes: (01.01.1997)
• Michael Kauf: (01.01.1997)
• Jürgen Kraus: (01.01.1997)
• Norbert Neubauer: (01.01.1997)
• Andreas Otto: (01.01.1997)

1996

• Michael Kauf: Closed-Loop-Control of Laser Power and Focus Parameters of CO2 High Power Lasers (20.12.1996)
• Markus Schultz: Weld Quality during 3D Laser Beam Welding of Shaped Sheet Metal Parts (14.10.1996)
• Stefan Holzer: Contact-free sheet metal forming by laser irradiation (26.07.1996)
• Henning Hanebuth: Laser beam brazing with double beam (11.04.1996)
• Thomas Rebhan: Microprocessing with excimer laser radiation - components and process optimization (18.03.1996)
• Stefan Holzer: (01.01.1996)

1995

• Wolfgang Greska: Knowledge Based Analysis and Classification of Sheet Metal Components (28.04.1995)
• Bodo Vormann: Contribution for the Automated Planning of Handling Operations for Complex Die Bending Parts (20.02.1995)
• Werner Heckel: 3-D Coordinate Measurement and In-Process Measurement of Bending Angles (30.01.1995)
• Werner Heckel: (01.01.1995)

1994

• Armin Gropp: Machine- and Process Diagnostics when Cutting with a Pulsed Nd:YAG-Laser (27.07.1994)
• Norbert Lutz: Micromachining of ceramics with XeCl excimer laser radiation (31.05.1994)

1993

• Robert Schmidt-Hebbel: Laser beam drilling of flow rate determining through holes (30.11.1993)
• Harald Kolléra: Development of a user oriented workshop programming system for laser cutting (30.07.1993)
• Matthias Hänsel: Report on the surface fatigue of metal forming tools (19.03.1993)
• Matthias Hänsel: Report on the surface fatigue of metal forming tools (19.03.1993)

1992

• Joachim Hutfless: Laser Beam Control and Optics Diagnostics within the Beam Guiding System of a CO₂ High Power Laser System (11.12.1992)

1991

• Peter Hoffmann: Investigations on Laser Beam Cutting and Welding in Car Body Production (31.12.1991)
• Martin Hoffmann: Development of a CAD/CAM process chain for the production of bent sheet metal parts (13.12.1991)
• Alfons Rief: Laser Beam Cutting and Welding: Process and Systems Technology in Three-dimensional Laser Machining of Formed Sheet Parts (31.07.1991)
• Roland Müller: Cutting of milled glass fiber enhanced compound material by CO₂-Laser (21.07.1991)
• Arnold vom Ende: - (23.04.1991)
• Uwe Geißler: - (10.01.1991)

1990

• Stefan Biermann: Investigation of machine and process diagnostics for high power CO₂ laser cutting machines (29.10.1990)
• Frank Vollertsen: Processing of an over-eutectical wear-resistant steel by powder metallurgy (30.05.1990)

1989

• Hans-Jürgen Wißmeier: Contribution to the evaluation of fracture behavior of carbide extrusion dies (20.07.1989)
• Rudolf Nuss: Analysis of the machining quality within the manufacturing system laser beam cutting. (17.03.1989)