Saw blade including teeth having a cutting portion with a wearing protection layer
AssigneeWIKUS-Sagenfabrik Wilhelm H. Kullmann GmbH & Co. KG
InventorsJorg H. Kullmann, Werner Kwanka
Life of this patent
Estimating the term…
Abstract
A saw blade (15) includes a body (16) and a plurality of teeth (1). The teeth (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, TiAlN, CrN or DLC.
Claims23
A saw blade, comprising,
- a body;
- and
- a plurality of teeth,
- said teeth including a cutting portion of a geometrically defined shape,
- said cutting portion including a cutting edge,
- said cutting portion including a wearing protection layer, said wearing protection layer being designed and arranged to cover said cutting edge,
- said cutting edge having an edge radius between approximately 0.005 mm and 0.045 mm relating to a condition of said cutting portion without said wearing protection layer.
A method of producing a saw blade including a body and a plurality of teeth, said method comprising the steps of:
- grinding a tooth for producing a cutting portion of a geometrically defined shape and including a cutting edge;
- finishing said cutting portion in a way that said cutting edge has an edge radius between approximately 0.005 mm and 0.045 mm;
- and
- applying a wearing protection layer on said cutting portion in a way that said wearing protection layer covers said cutting edge.
Dependencies are inferred from the claim text.