Optimal laser beam configurations for laser cutting of metal sheets

摘要

The most recent developments in high power laser sources and handling optical systems create new options for optimizing the cutting process. However the selection of an optimal configuration is not evident since in laser cutting of metal sheets, the interaction between the laser and the material is geometrically complex. From an energetic point of view, parameters such as wavelength, polarization and beam shape can be optimized for different materials and thicknesses and, in theory, can significantly increase process efficiency. This paper offers an overview of possible techniques for such optimization and discusses their practical implications.