Invisible beam laser cutting is used instead of the traditional mechanical knife, with high precision, cutting fast, not limited to the cutting pattern restrictions, automatic layout saving material, cut smooth, low processing costs will gradually improve or replace the traditional metal cutting equipment. Laser knife head of mechanical part and artifacts no contact, in work in the not on artifacts surface caused designated injury; laser cutting speed fast, incision smooth flat, General without follow-up processing; cutting hot effect district small, plate deformation small, cut sewing narrow (0.1mm~0.3mm); incision no mechanical stress, no shear Burr; processing precision high, repeat sex good, not injury material surface; NC programming, can processing any of plane figure, can on format is big of whole Board cutting, without open mold, economic province Shi.