I. factors affecting the safety performance of diamond saw blades
        1. The external circular tooth part of the matrix is not clean, resulting in weak welding bond.
       2. The sintering process parameters are not well controlled, the sintering temperature is low, the "underburning" makes the welding weak, and the matrix itself has low strength and is fragile.Ii. Measures to improve the safety performance of diamond saw blades
        1. Optimize the design. Raw material powder with low oxygen content was used. Changing the outer circular shape of matrix to "swallow-tooth shape" can improve the bonding strength of matrix and matrix.
       2. Optimize the process. "Copper plating" process is adopted for the tooth part of the matrix. Adopting cold press-hot sintering process; Adopt hot pressing - fusion welding process (namely laser welding process).
        Traditional high frequency welding, welding joint strength (especially at high temperature) is not high enough, the sawing process is prone to accidents such as blade flying off injuries, the safety and reliability of the saw blade is not good.
        Laser welding takes focused laser beam as the energy and USES deep penetration welding mechanism to melt the transition layer and matrix of the tool head to form a solid welding seam. Even if the saw blade and drill bit are used without cooling water cooling, it can ensure high welding strength and safety.