Influence of the Dross Formation of the Laser-Cut Edge on the Fatigue Strength of AISI 304

Laser cutting is a thermal process based on material melting that results in characteristic features of the cut edge. The dross particular crucial quality-determining feature which occurs especially when processing higher sheet thicknesses. influence geometry fatigue behavior AISI 304 was investigated this work. Using iterative experimental design, samples with different geometries were produced by varying laser parameters. Four identified and used to classify manufacturing parameters: dross-free, small droplets, large droplets very coarse dross. Fatigue tests performed up 107 load cycles revealed dependence due their notch effects. It found dominated strength only above certain height. At low heights, surface relief edge strength. properties (surface dross) depend parameters during cutting. Gas pressure feed rate showed significant influence. findings work provide information about behavior’s geometry, can be transferred thicknesses or complex sample geometries.