Circular saw blade for cutting wood, has teeth subdivided into identical sectors each having teeth with specific face angles, where each tooth has hook type sector breaking chips at level of back part and micro-teeth crushing chips

摘要

The blade has a set of teeth subdivided into identical sectors (S) each having teeth (1a - 1c). The teeth of one sector have a face angle varying progressively. The teeth (1a, 1b, 1c) have face angles of 21.5, 23 and 24.5 degrees, respectively. Each tooth has a hook type sector at the level of the angle, for breaking chips at the level of a back part of the teeth and micro-teeth for crushing the chips. The profile of the back part is reunited at the back of the teeth and followed by a teeth bottom radius. Each tooth has a section with a carbide tip.