Segments
A diamond segment is the cutting part of a diamond blade that is mounted on a steel core. This mounting can be done in various ways: (laser) welding, cold or hot pressing, sintering, and vacuum brazing. Universal blades are often manufactured using the cold or hot pressing method, while high-quality blades are typically laser-welded. Vacuum brazing is commonly used to produce diamond tile drills, and grinding heads are usually sintered.
The segment consists of synthetic diamond grains embedded in a metallic bond (such as bronze, iron, steel, or cobalt). This composition ensures that hard materials can be cut efficiently and in a controlled manner. As the bond wears down, new diamond grains are continuously exposed on the surface, keeping the cutting edge sharp.
Using diamond saw blades for their intended applications extends their lifespan. A universal blade, for example, is suitable for various types of stone. By alternating between hard and soft materials, the bond wears evenly and performs optimally. A blade designed for concrete delivers the best results in concrete cutting applications.
The height of the diamond segment partly determines the lifespan of a saw blade: the higher the segment, the longer the blade will last.
Segment thickness also affects performance and durability. A thicker segment provides greater stability during cutting and reduces vibration, which is particularly beneficial when working with hard materials.
A thinner segment, on the other hand, allows for faster cutting with less resistance. This is especially noticeable when cutting ceramic tiles.
Some saw blades have segmented rims, while others feature a continuous rim. The choice depends on the application. For fine cutting work, such as tiles, it is recommended to use blades with a continuous rim and a thin kerf to minimize chipping.
For rough cutting tasks, such as brick, concrete, and paving stones, blades with segmented rims are generally sufficient.