A method and device for blade laser shot peening shape correction

Abstract

The invention discloses a method and device for blade laser peening shape correcting. The method is characterized in that a measurement model and a CAD module of a blade are aligned through a three-dimensional profile scanner at first, the torsion resistance error and the bending error of the blade are calculated correspondingly and are transmitted to a computer control system through a data collection system, a laser peening parameter and a shape correcting path are determined in a data mining mode, and torsion and bending shape correcting of the blade are achieved. The device for implementing the method comprises the computer control system, a laser device power source, a laser device, a transmitting mirror, an absorbing layer, the blade, the three-dimensional profile scanner, the data collection system, a water smearing robot, a water smearing robot control system, a blade part robot and a blade part robot control system. By means of the method and device for blade laser peening shape correcting, controlling over shape correcting of the blade can be achieved, the blade is subjected to precise shape correcting, the precision of shape correcting is high, and the device and the method are suitable for shape correcting of aircraft blades.

Description

technical field [0001] The invention relates to the technical field of laser shot peening shape correction technology, in particular to the field of laser shot peening shape correction treatment of blades, in particular to a method and device for laser shot peening shape correction of blades. Background technique [0002] The blade is an important part of an aero-engine, and the performance of the engine largely depends on the design and manufacturing level of the blade profile. The blade is a typical thin-walled structural part with variable cross-section. Its manufacturing accuracy directly determines the propulsion efficiency of the engine. During the processing, the accuracy of the blade is difficult to guarantee, and it is easy to deform. Therefore, it is necessary to correct the shape of the blade. The traditional shape correction Methods include hammering, thermal shaping, and mechanical shot peening, but the above methods are difficult to achieve accurate shaping, es...

AI Technical Summary

Problems solved by technology

The blade is a typical thin-walled structural part with variable cross-section. Its manufacturing accuracy directly determines the propulsion efficiency of the engine. During the processing, the accuracy of the blade is difficult to guarantee, and it is easy to deform. Therefore, it is necessary to correct the shape of the blade. The traditional shape correction Methods include hammering, thermal shaping, and mechanical shot peening, but the above methods are difficult to achieve accurate shaping, especially for thin-walled structural parts with variable cross-sections, such shaping methods are difficult to meet the requirements

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