Research On The Mechanical Performance And Process Optimization Of Diamond Circular Saw Blade

Diamond circular saw blade is an important cutting tool and widely used in the processing of concrete,refractory materials,stone,glass,ceramics and other hard and brittle materials.But its ultra-thin structural characteristics easily causes large deformation,or even broken;and the vibration and noise produced by this kind of tools bring great harm to the environment.This paper mainly studies the plane stress and dynamic characteristics of the circular saw blade based on the finite element software ANSYS Workbench.The main work includes the following aspects:Several kinds of plane stress of diamond circular saw blade were studied theoretically.It includes five parts: theoretical study of centrifugal force,theoretical study of sawing force,theoretical study of thermal stress,theoretical study of compressive stress and theoretical study of tempering stress.And their influence on the stability of circular saw blades was obtained which provide the theoretical support for the design optimization of the circular saw blade.The finite element software ANSYS Workbench was used to simulate the static and thermodynamics of circular saw blades.The character rule and correlation of deformation and stress were analyzed when diamond circular saw blade is under the action of centrifugal force,sawing force,thermal load and under combined action of the three forces.The radial groove structure of the circular saw blade was optimized,and the bottom hole radius,groove depth,groove width and groove inclination angle of the groove were taken as variables.The thermodynamic coupling analysis of the circular saw blade was carried out to obtain the optimal structural parameters of the radial groove which improve the mechanical properties of the circular saw blade.The dynamic characteristics of the diamond saw blade were analyzed to determine the natural frequency and the formation of the formation,and the main factors affecting the dynamic characteristics of the saw blade(such as prestress,flange diameter,substrate thickness)were analyzed too.The vibration characteristics of the saw blades with circular noise reduction hole and the composite saw blades were studied,and the size,distribution position and the number of round holes of saw blades with circular noise reduction hole wereoptimized,and the sandwich damping material type and the optimum interlayer thickness of the composite circular saw blade were determined too.And vibration attenuation experiment was made to compare for composite circular saw blade and ordinary circular saw blade.The results show that the vibration intensity and decay time of the composite saw blade are greatly reduced compared with the conventional saw blade,which provides a reference for the vibration and noise reduction technology of the circular saw blade.Based on the current analysis of the manufacturing process of the composite circular saw blade and combined with the optimized structural characteristics of the circular saw blade,the process parameters and processing methods of the key processes(such as spot welding,heat treatment,grinding,etc.)were optimized.Meanwhile,the processing control requirements of the above key process were discussed.