Proven outcome of CALCut simulations: Instructive laser cutting front representations and unique correspondence with practice.

CALCut is a model and simulation tool for optimizing laser cutting efficiency and quality.

The unprecedented scope of the physical sub-processes included in CALCut enables the three-dimensional stationary cutting front geometry and the resulting cut kerf geometry to be calculated theoretically.

CALCut identifies the spatial distributions of the absorbed laser beam power density, of the temperature, of thickness and flow velocity of the melt film along with the evaporation rates and pressure gradients.

The analysis of the cutting front geometry and the above mentioned distribution functions allows conclusions to be drawn about the practically achievable cut quality.

An automatic iteration feature of CALCut can determine the highest possible cutting speed achievable with the selected input parameters in practice.

Proven-CALCut-calculations-LAMP2009 Output
Proven correspondence of the results from the computer simulation CALCut (lines) and the practical outcome (symbols) regarding the influence of material, sheet thickness, laser beam power, cutting speed, focal length, focal position and polarisation in case of CO2 laser cutting. Three process regimes have been identified.
CALCut calculation sequence of a cutting front.
CALCutFronts1u Output
Laser beam cutting fronts calculated by CALCut for fiber laser cutting 3mm stainless steel at varied speed.

CALCut is a model and simulation tool self-developed and privately owned by Dr. Dirk Petring since 1993. It has been used exclusively for Fraunhofer Institute for Laser Technology ILT 1993-2023 where it has been verified and approved in numerous industrial projects.