Laser shock wave micro-modeling processing device with rotating beam preheating function

Abstract

The laser shock wave micro-modeling processing device with a rotating beaming preheating function. The device comprises a shell, wherein a laser emitter is arranged at the inner top end of the shell,a first convex lens, a half mirror and a second convex lens are arranged at a main optical axis of the laser emitter, and a light transmission hole is formed in the position, corresponding to the mainoptical axis of the laser emitter, of the bottom end of the shell; and a total reflection mirror is arranged at the reflection main optical axis of the half mirror, and the total reflection mirror isconnected with an adjusting clamping sleeve capable of adjusting a reflection angle of the total reflection mirror. According to the device, by arranging the laser emitter, the first convex lens, thehalf mirror and the second convex lens, a laser is emitted through the laser emitter, the laser is converted into parallel light through the first convex lens and shone onto the half mirror, a part of the laser passes through the half mirror, passes through an opening, is shone on the second convex lens and is focused on the second convex lens, and a to-be-processed workpiece is arranged at a focal point for laser processing.

Description

technical field [0001] The invention relates to the technical field of micro-modelling, in particular to a laser shock wave micro-modeling device for preheating with rotating beams. Background technique [0002] As early as the 1960s, relevant researchers discovered that when a laser pulse irradiates the surface of a solid material, the laser interacts with the material to generate a shock wave. Subsequently, the mechanical effects of laser-induced shock waves were gradually applied to the field of engineering technology, such as laser shock strengthening treatment on the surface of materials, that is, the use of laser-induced shock waves to improve the performance of materials such as fatigue resistance, wear and stress corrosion; and laser layer cracking hair coating. The detection of the bonding strength of the layer interface is to use the characteristics of the tensile stress generated when the laser-induced shock wave is reflected at the bonding interface of different ...

AI Technical Summary

Problems solved by technology

[0004] However, the laser shock wave micro-modeling in the prior art is limited by several shortcomings. Due to the high-speed and high-pressure stamping behavior of the laser shock wave on the micro-area of ​​the modeling, when processing metal materials with poor plasticity, high-energy laser shocks are likely to cause other defects. Surface cracking and spattering, resulting in poor quality micro-modelling, which cannot be adjusted, allowing separate processing of poorly-formed and better-formed materials

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