| 摘要 |
A method of making a saw blade comprising forming at least one recess (4) along an edge (6) of a support strip (2), and securing in the recess (4) at least one material (8) providing, or enabling the provision of, a sawing edge. Individual saw teeth (16) may be inserted into the recess (4) to form the sawing edge. Alternatively, the recess (4) may be filled with tungsten powder (8) sintered to form a hardened edge into which the saw teeth (14) are formed. Alternatively, the recess (4) may be filled with a mixture of tungsten grit and braze material, and heated to form a hardened edge into which the saw teeth are formed. Alternatively, a series of short lengths of tungsten carbide strip may be inserted into the recess (4). The recess (4) may be mechanically closed after having been provided with the material providing, or enabling the provision of, the sawing edge. |
