NLD - Nonlinear Dynamics of Laser Manufacturing Processes Instruction and Research Department


Head of the Institute

Univ.-Prof. Dr. rer. nat. habil. Wolfgang Schulz

Field of Study

Production Engineering, Basics of Mechanical Engineering

Main Focus

Modelling and Simulation, Integrative Production, Laser and Laser Optics, Cutting and Joining Processes, Micro Engineering

Research Focus

We develop concepts for implementation of manufacturing processes (e.g. cutting, welding, drilling) using lasers and derive requirements on future laser systems based on these concepts.

New concepts of process implementation arise when the solution properties of the model (e.g. the rehardening and adhering of melt during cutting) can be identified with the results of the diagnosis and experimentally observed properties (e.g. recording of the thermal emissions of the cutting front with a CMOS camera).

Nonlinear Dynamics
In order to better understand the nonlinear dynamics (NLD) of laser manufacturing processes, the solution properties of equations of motion within continuum physics (e.g. movement of the phase boundaries during cutting and vaporising) are analysed.

Reduced Dynamical Systems
Reduced dynamical systems are defined through mathematical modelling of what is identified as the key structure of the solution.

Numerical Methods
In order to evaluate the approximation accuracy of the reduced dynamical systems and to identify additional effects, numerical methods are applied (e.g. level set methods for describing the motion of open phase boundaries, wavelet bases for efficient and adaptive function approximation).

The modules "Modelling in Laser Processing" (ST, 2/2) and "Model Reduction and Simulation in Laser Processing" (WT, 2/2) cover the area of obligatory elective subjects in Production Engineering, Development and Production as well as Automation Engineering.


NLD - Nonlinear Dynamics of Laser Manufacturing Processes Instruction and Research Department
Steinbachstr. 15
52074 Aachen

Phone: +49 241 890-620 4
Fax: +49 241 890-611 2

Homepage NLD