Braze welding is through the silver solder pieces to substrate and bonding together of the welding method of the cutting tools, it belongs to a physical union, this way not only consumes a lot of expensive silver welding, and welding speed is slow, large welding deformation, such as faults, is more important, the welding strength is low, with the saw blade in the work process of temperature rising, welding position will become loose, fall and even cause safety accidents.

However, laser welding does not require silver welding sheet. It is a metallurgical combination formed by directly melting the matrix and the tool head through laser energy. Compared with traditional welding, laser welding has the following advantages :
1. The laser welding intensity is high, without tooth loss, but the laser welding saw blade, depending on the thickness of the substrate, the average breaking moment is 13~25.

2. Laser welding not offset, high precision, small thermal impact, no deformation;

3. Laser welding speed, high efficiency, the speed of about 2 minutes per piece (300 mm, 21 million head), at the same time with the advanced optical system, each laser is configured with a number of worktables, cycle work, so as to greatly improve the work efficiency.