What are the welding methods of large frame welding processing:
1. Fusion welding
Fusion welding is a method of heating the workpiece interface to the molten state during the welding process and completing the welding without pressure. During fusion welding, the heat source will quickly heat and melt the interface between the two workpieces to be welded to form a molten pool. The molten pool moves forward with the heat source and forms a continuous weld after cooling, connecting the two workpieces into one.
2. Pressure welding
Pressure welding is the combination of atoms between two workpieces in the solid state under pressure, also known as solid-state welding. The commonly used pressure welding process is resistance butt welding. When the current passes through the connecting end of two workpieces, the temperature rises due to the high resistance. When it is heated to the plastic state, it is connected into one under the action of axial pressure.
3. Brazing
Brazing is a method of using metal materials with a lower melting point than the workpiece as solder, heating the workpiece and solder to a temperature higher than the melting point of solder and lower than the melting point of workpiece, wetting the workpiece with liquid solder, filling the interface gap and realizing the mutual diffusion between atoms with the workpiece, so as to realize welding.
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