SIREN

We develop a cutting model based on analytical, semi-analytical and numerical approaches that predicts the dynamic behaviour of next generation machine tools in an extreme high-performance domain with great accuracy. To achieve this goal, the models consider the combined effects of process damping, revolutionary topology of cutting tools and nonlinear cutting forces. This way, the fundamentals of understanding/monitoring/overcoming of chatter, the historically feared dominant limitation of machining productivity and quality, will be greatly expanded to multiply the productivity of machining.

The main objective of this task is the development of a reliable, robust and definite characterization, setting and measurement procedure of the tool/tool-holder contact in terms of stiffness and damping.

The goal of this work package is the construction of a mechanical model that describes the dynamic stiffness and damping behaviour of the spindle in a wide range of the rotational speed, bearing preload and further operating conditions like transient motions and thermal effects.

The goal of this work package is the integration of the validated models of work packages 2 and 3 into the concepts of work package 1. The results are implemented and demonstration is presented on real 5axis machine tool in laboratory or real environment.