Laser etching manufacturing method of large annular component

Abstract

The invention provides a laser etching manufacturing method of a large annular component. The method is used for machining an aerospace component with the diameter not less than 1.2 m, and mainly comprises the steps of carrying out surface cleaning on the component, soaking the cleaned component in etching paint, and then taking out the component after soaking is carried out for one hour; puttingthe component into a uniform stirring dryer, and taking out the component after one hour; carrying out primary clamping on the component, and taking four positioning points on the end surface of the component; performing primary laser etching, using a laser mechanical arm to etch on the etching paint on the component surface according to a preset etching pattern, and forming a machining pattern onthe etching paint of the component surface; and immersing the etched component in a corrosion pool, and machining the component through a corrosion solution in the corrosion pool, so that the position, where the etching paint is etched through laser etching, of the surface of the component is exposed in the corrosion solution and becomes thinner after being corroded by the corrosion solution, andthe etching paint which is not subjected to the laser etching still covers the surface of the component to prevent corrosion of the corrosion solution.

Description

technical field [0001] The invention belongs to the field of advanced laser manufacturing, and relates to a laser engraving manufacturing method of a large ring component. It is used to process the surface of large aerospace components, and the diameter of aerospace components is not less than 1.2m. Background technique [0002] A new type of light source appeared in the 1960s, which has the characteristics of good monochromaticity, good directionality, good coherence, and energy concentration. A femtosecond light pulse is defined as a duration of 10 -12 s-10 -15 s laser pulse, this laser pulse has the characteristics of extremely high peak power, wide spectral width and extremely short laser emission time. With its unique ultra-short duration and ultra-strong peak power, the femtosecond laser has created a new field of ultra-fine material, low damage and three-dimensional processing of materials, and its application is becoming more and more extensive. According to the ...

AI Technical Summary

Problems solved by technology

The CO2 laser engraving machine sold by the Italian PRIMA company to my country's Liming Company can only complete the first engraving, the price exceeds 10 million, but the engraving and weight reduction capabilities are insufficient

[0010] Therefore, according to the needs in the field of large aerospace components, the present invention proposes