The stir friction welding method is the same as conventional friction welding. Stir friction welding is also the use of friction heat and plastic deformation heat as a welding heat source. The difference is that the friction welding welding process is a cylinder or other shapes (such as threaded cylinders) stirring needle (welding pin) into the joints of the workpiece, through the high-speed rotation of the welding head, so that it is friction with the welded workpiece material, so that the temperature of the material connected to the part of the material to rise and soften. At the same time to the material stirring friction to complete the welding.
There is a big difference between the two, one through the arc and pressurized welding, the other through the friction of heat welding, Baidu encyclopedia inside a detailed description.
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