METHOD FOR CUTTING A FLAN DIT 'SINUS' AND CUTTING TOOL USING THE METHOD

摘要

The invention relates to a method for cutting so-called "sinus" blanks (50) in a sheet metal strip (4) in a cutting tool comprising a so-called "sinus" cutting blade (2) and means for scrolling the sheet metal strip, the cutting method comprising steps of: a) scrolling by means of scrolling of the sheet metal strip by a value of a cutting pitch (8); c) cutting a so-called "sinus" blank by the so-called "sinus" cutting blade along a so-called "sinus" cutting line in the sheet metal strip; d) evacuation of the so-called "sinus" blank thus cut off from the cutting tool, the method comprising a step b) of producing a notch (11, 70) on each of the banks of the sheet metal strip at the right of and horse on the cutting line called "sinus".