Brazing: A filler metal with a lower melting point than the base metal (called brazing filler metal). After heating and melting, the base metal is wetted with liquid brazing filler material, filling the gap between the joints and interdiffusing with the base metal to achieve the connection.

Compared to welding, the parent metal does not melt during brazing, only the solder melts;

Compared to pressure welding, no pressure is applied to the weldment during brazing.

The weld formed by brazing is called brazing.

The filler metal used for brazing is called solder.

Brazing process: The surface-cleaned workpieces are assembled together in an overlapping pattern, and the solder is placed near the joint gap or between the joint gaps. When the workpiece and the solder are heated to a temperature slightly higher than the melting point of the solder, the solder melts (the workpiece is not melted), and is sucked in and filled between the solid workpiece gap by capillary action. After cold doubt, a brazed joint was formed.