Circular saw blade with radical slits along its periphery - has precision input zones with material accumulation in region of centre facing slot end

摘要

The slit surrounding zones are precision upset. They are formed in the region of the slit ends, facing the blade centre, so that there is a material accumulation, adjacent to the slit region, surrounding the slit region and formed by material flow during upsetting. Pref. the precision upset zone in circular on both sides of the saw blade. The precision upset zone may penetrate in half the saw blade material thickness. It may extend up the slit end with a preset width. USE/ADVANTAGE - Circular saw blade with long service life and reduced injury risk, and reduced danger of cracks.