Current-loaded linear friction welding device

Abstract

The invention relates to the technical field of linear friction welding, in particular to a linear friction welding device, and in particular discloses current-loaded linear friction welding equipment which has a simple structure, and is low in energy consumption, high in efficiency and low in welding cost. The linear friction welding equipment comprises a control system, an upset forging end system, a vibrating end system and an auxiliary power supply, wherein the upset forging end system comprises an upset forging end clamp; the vibrating end system comprises a vibrating end clamp; the upset forging end clamp and the vibrating end clamp are arranged oppositely; and two electrodes of the auxiliary power supply are electrically connected with the upset forging end clamp and the vibrating end clamp. When the current-loaded linear friction welding device is used, current is loaded on a test piece during welding, so resistance heat is generated on the contact end face of the test piece, the requirement on friction heat can be reduced, and the complexity and energy consumption of a vibrating assembly can be reduced; and the vibrating assembly can be driven by a linear motor, and the welding efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of linear friction welding, in particular to a linear friction welding device. Background technique [0002] The principle of linear friction welding is: one test piece reciprocates at high frequency, and the other test piece is in contact with the vibrating test piece under a certain load force, thereby generating frictional heat, and the interface temperature rises rapidly, forming flash and being extruded; when When the interface temperature rises to a certain level, the vibrating specimen quickly stops vibrating, and at the same time, a certain upsetting pressure is applied and maintained for a certain period of time. The interface metals are welded together through mutual diffusion and recrystallization, thereby completing the entire welding process. [0003] In addition, linear friction welding technology has the following characteristics: [0004] (1) It can not only weld the test piece of circular s...

AI Technical Summary

Problems solved by technology

[0011] The disadvantages of traditional linear friction welding equipment are: first, the part of the vibration component that realizes the vibration of the test piece has a complicated mechanism. In the current welding equipment, the heat required for welding is all generated from high-frequency vibration friction. In order to meet the high Frequency load vibration, the mechanism of the vibration component needs to be designed more complicated, such as hydraulic linear friction welding equipment, in order to meet the above needs, the servo valve is required to have the characteristics of high frequency response and large flow rate at the same time, frequency response and flow rate are a pair of contradictions indicators, and it is necessary to design a huge hydraulic system; second, the energy consumption is large and the efficiency is low. Because the vibration components of traditional welding equipment are relatively large and complex, the acceleration generated by high-frequency vibration is very large during work, and The mass of the vibration component is very large, so the inertial force generated is very large. The power of the linear friction welding equipment is as high as several hundred kilowatts, while the power consumed at the welding joint is only 1 / 20 to 1 / 30, and most of the power is used to overcome Inertial forces generated by vibrating components, resulting in low efficiency and high cost

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