Diamond disc saw blade is the main tool for sawing stone, and the vibration caused by sawing stone at high speed will cause problems such as saw path loss and low processing quality. In addition, the vibration characteristics cause noise during sawing, which seriously affects the physical and mental health of surrounding residents and workers.
Diamond saw blade belongs to a typical thin plate part, the ratio of thickness to diameter is very small, resulting in its overall lateral bending stiffness is small, easy to produce bending deformation. In sawing, the stone is cut by the knife tooth through the high-speed rotation of the saw blade, and the very small axial component may cause axial deformation of the saw blade. Different sawing parameters will also cause different degrees of axial deformation of the saw blade, and the side pressure generated by the saw blade caused by uneven or poor installation during sawing will force the matrix to undergo repeated bending deformation, resulting in a decrease in the stiffness of the saw blade matrix until the final fatigue failure. The periodic impact of the serrated tooth on the workpiece generates periodic axial forces, which in turn stimulate the axial vibration of the saw blade. Vibration will not only reduce the service life of the saw blade, but also deflect the sawed stone saw seam, widen the saw path, reduce the surface quality, and even appear chipping phenomenon so that the cutting cannot be carried out normally, and aggravate the noise pollution. It is of great significance to effectively reduce the axial vibration of diamond disc saw blade when sawing stone, which is of great significance to improve the utilization rate and processing quality of stone.
For the vibration of the disc saw blade, the current consistent research results believe that the vibration of the saw blade when working is mainly divided into 3 types: axial vibration (lateral vibration), radial vibration and torsional vibration. Among them, the most influential on sawing is axial vibration. Regarding the axial deformation of circular saw blades, vibration detection and vibration control, scholars at home and abroad have done a lot of research work.
