Effects of two laser cutting modes on the magnetic properties of low and medium Si grain non-oriented electrical steels

摘要: Summary form only given. Laser cutting is a non-contact technique, which also provides flexibility for the design of electrical components. Therefore it can appear as ideal technical solution steels manufacturers. Nevertheless laser deteriorates more magnetic properties than mechanical cutting. The have been measured on one mini-SST especially built non conventional measurements. 3 grades selected, 2 fully-processed (FP): SC and EB with respectively 0.31 2.98% Si semiprocessed (SP): EC 2.32% Si. after cuttings are equivalent all samples. On contrary, FP sensitive to different modes obtained results emphasize superiority SP grade difficulty keep quality grades. behavior coercive field (Hc), remanent induction (Br) maximum relative permeability (/spl mu/) points out importance (pulsed or continuous) induced thermal stresses. An optimization parameters thus possible.