Stainless steel surface microtexture processing method and preparation device based on ultrasonic peening

Abstract

The invention discloses a stainless steel surface microtexture processing method and preparation device based on ultrasonic peening. The device comprises an ultrasonic peening gun, an ultrasonic peening gun control cabinet, an ultrasonic peening gun special fixture, a stainless steel workpiece special fixture, a marble portal frame, an X-axis and Y-axis mass motion platform, a Z-axis motion platform, a three-axis motion controller and a pressure indicator, wherein the ultrasonic peening gun is installed on the ultrasonic peening gun special fixture located on the Z-axis motion platform, a stainless steel workpiece is installed on the stainless steel workpiece special fixture located on the X-axis and Y-axis mass motion platform, the Z-axis motion platform is fixed to the marble portal frame, the ultrasonic peening gun control cabinet is connected with the ultrasonic peening gun, the three-axis motion controller is connected with the X-axis and Y-axis mass motion platform and the Z-axismotion platform, the stainless steel workpiece special fixture is provided with a pressure sensor, and the pressure indicator is connected with the pressure sensor. The stainless steel surface microtexture processing method and preparation device based on ultrasonic peening is simple in structure, high in processing accuracy, good in processing controllability and low in cost, and causes no pollution to the environment.

Description

technical field [0001] The invention belongs to the technical field of material processing, and relates to a processing method and a preparation device for stainless steel surface micro-texture based on ultrasonic impact. Background technique [0002] Functional surface microstructures refer to tiny surface topological shapes with specific functions, such as grooves, microlens arrays, etc., which have functional properties such as superhydrophobic, light trapping, drag and friction reduction, and noise reduction. Therefore, they have important practical applications. value. At present, the research work on improving the friction and wear properties of stainless steel by preparing functional surface microstructures has attracted extensive attention from scholars and industries at home and abroad. [0003] Stainless steel has been widely used in engineering fields due to its good corrosion resistance. However, due to the poor wear resistance of stainless steel, its applicati...

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Problems solved by technology

However, when preparing surface biomimetic textures with micro-nano scale, laser processing still has the following shortcomings: the flanging and burrs in laser processing lead to low precision machining, and it is difficult to precisely control the geometry of textures; High-energy laser irradiation causes metal surface damage and changes in metallographic structure, which affects the physical an

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