Multi-path high-energy ultrasonic field treatment device for regulating and controlling welding residual stress

Abstract

The invention relates to a multi-path high-energy ultrasonic field treatment device for regulating and controlling a welding residual stress. The device sends a control instruction by matching with regulating-controlling system software and via an industrial personal computer; an ultrasonic signal excitation controller receives the control instruction, and then sends a regulating-controlling signal to a high-power ultrasonic amplifier; the high-power ultrasonic amplifier drives a high-energy ultrasonic transducer according to the regulating-controlling signal to generate a high-energy ultrasonic beam; and the energy of the high-energy ultrasonic beam is injected in a residual stress concentrated area in the surrounding of a weld joint according to set requirements, and then is used for regulating the residual stress. The device is simple in structure and good in regulating-controlling effect, can effectively solve the various adverse effects of a residual stress on the dimensional stability, the fatigue strength and the like of a welding workpiece at the present stage, has the characteristics of being efficient, energy-saving, environment-friendly and the like, and is very wide in application prospect.

Description

1. Technical field [0001] The invention relates to a multi-channel high-energy ultrasonic sound field processing device for regulating and controlling welding residual stress, in particular to a system for regulating and controlling residual stress in a welding area by high-energy ultrasonic. 2. Background technology [0002] Traditional techniques for weakening and eliminating residual stress include natural aging and thermal aging techniques. Natural aging depends on the temperature changes in the diurnal season, which gradually causes the metal lattice to slide slowly, and finally achieves the purpose of stress release. The disadvantages of this method are that it takes a long time, has low efficiency, occupies a large area, and is not easy to control. Thermal aging technology heats the workpiece below the phase transition temperature, and reduces the yield limit of the workpiece in the hot state, thereby reducing or eliminating the residual stress. The disadvantages of...

AI Technical Summary

Problems solved by technology

The disadvantages of this method are time-consuming, low efficiency, large floor area, and difficult to control

The disadvantages of this method are long cycle, high energy consumption, high economic cost, easy oxidation of the workpiece, serious pollution, and it is not easy to handle large components or heat vulnerable components

However, the disadvantage of this technology is that the magnetic circuit device is relatively complicated, and it is inconvenient to use and operate on site, and it is only applied to the residual stress generated by welding.

But the disadvantage is that the operation is more complicated, and it is not suitable for local in-situ residual stress relief of larger components

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