During the machining process, the welding method of the excavator piston rod is friction welding. This is a solid state welding method that achieves molecular diffusion and recrystallization of the interface by interfacial friction. In recent years, friction welding has attracted the attention of the manufacturing industry due to its high quality, high efficiency, energy saving and environmental protection, mainly because it has the following characteristics:
1. Green environmental protection
The application of friction welding in the machining of excavator piston rods is environmentally friendly as it is not contaminated by sound, light, gas and radiation.
2, high welding efficiency
Friction welding has a high welding efficiency. Welding is stable for one, two and three minutes.
3, low welding costs
During the machining of the excavator piston rod, friction welding does not require flux and requires a small amount of electrical energy.
4, good welding quality
Friction welding has the advantage of high quality of welded joints. The weld strength is close to that of the base metal, which can reach the welding strength and the strength of the base material, and also can weld different materials.
5, can achieve a solid state connection in the forged state.
In the welding process, friction welding is a conventional fusion welding which allows the metal to be in a thermoplastic state, solid state connection in a forged state (i.e., the temperature of the metal obtained from the weld metal has not reached its melt). However, in the welding process of the excavator piston rod, friction welding is a solid welding method, so the frictional interface temperature of the friction welding should generally not exceed the melting point.https://www.xhychromerod.com/