Multiparametric Optimization of Laser Cutting of Steel Sheets

摘要

Mathematical models that provide an adequate description of the effect of laser cutting parameters on the roughness of the cut surface with no burr, the extent of the heat-affected area, and the nonperpen-dicularity of the cut surface are devised. Nomograms that allow one to select the laser cutting regimes designed to minimize the surface roughness, the heat-affected area, and the nonperpendicularity for sheets of St. 3 steel of different thickness are proposed.