What are the manifestations of diamond circular saw blade wear

During the process of cutting stone, diamond circular saw blades will be subjected to alternating loads such as centrifugal force, sawing force, and sawing heat, causing wear. The wear of diamond circular saw blades is mainly caused by force and temperature.

The main manifestations of diamond circular saw blade wear are: abrasive wear, local breakage, large-scale breakage, shedding, mechanical scratches of the binder along the sawing speed direction, etc.

Abrasive wear: Diamond particles are constantly rubbing against parts, the edges are passivated into a plane, the cutting performance is lost, and the friction force increases. The sawing heat will produce a graphitized thin layer on the surface of diamond particles, greatly reducing the hardness and aggravating wear.

Local breakage: The surface of diamond particles is simultaneously subjected to alternating thermal stress and alternating cutting stress, fatigue cracks will appear, local breakage will occur, and sharp new cutting edges will be exposed. This is a more ideal form of wear.

Large-area breakage: Diamond particles are subjected to impact loads when cutting in and out, and the more prominent particles and grains are consumed prematurely.

Falling off: Alternating cutting force causes the diamond particles to shake and loosen in the binder, while the wear of the binder itself and the sawing heat during the sawing process soften the binder. This reduces the holding force of the binder. When the cutting force on the particles is greater than the holding force, the diamond particles will fall off. Either type of wear is closely related to the load and temperature borne by the diamond particles. Both depend on the cutting process and cooling and lubrication conditions.