SAW BLADE INCLUDING TEETH HAVING A CUTTING PORTION WITH A WEARING PROTECTION LAYER

摘要

A saw blade (15) includes a body (16) and a plurality of teeth (1). The teet h (1) include a cutting portion (2) of a geometrically defined shape and including a cutting edge (3). The cutting portion (2) includes a wearing protection layer (7) which covers the cutting edge (3). The cutting edge (3) has an edge radius (4) between approximately 0.005 mm and 0.045 mm relating to a condition of the cutting portion (2) without the wearing protection layer (7). Preferably, the wearing protection layer (7) is made of a hard material, especially TiN, TiCN, TiAIN, CrN or DLC.