Non-single incident angle unequal-intensity laser shock processing method

A technology of laser shock and incident angle, which is applied in the field of laser shock, can solve the problems of low processing technology, achieve the effects of improving strengthening efficiency, facilitating operation, and reducing processing costs

Active Publication Date: 2021-04-30
SHANDONG UNIV
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  • Abstract
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Problems solved by technology

[0005] In view of the strong demand for unequal-intensity laser shock strengthening processing of complex structural parts and the low feasibility of unequal-intensity strengthening processing technology in the past, the present invention proposes a non-fixed-angle incident laser shock of unequal intensity based on a variable irradiation area. The strengthening method realizes the regional unequal strength strengthening treatment of complex structural metal parts, effectively reduces the processing cost, improves the strengthening efficiency, and makes the internal residual compressive stress of the component realize the uniform distribution of variable cross-section

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Embodiment 1

[0032] In a typical implementation of the present invention, this embodiment discloses a non-single incident angle and unequal intensity laser shock processing method, including the following steps:

[0033] According to the thickness, the component to be processed is divided into the area whose thickness is greater than or equal to the set value and the area whose thickness is less than the set value;

[0034] According to the target processing effect of each area, determine the laser processing parameters of each area;

[0035] Through the adjustment of the spatial position of the component to be processed and the incident direction of the laser, the unequal intensity processing of different processing regions of the component to be processed can be realized.

[0036] Specifically, in this embodiment, it can be divided into the following specific steps:

[0037] (1) Determine the insensitive area of ​​the component to be processed to laser shock.

[0038] The laser shock i...

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Abstract

The invention discloses a non-single incident angle unequal-strength laser shock processing method, belongs to the technical field of laser shock, and aims to realize regional unequal-strength strengthening treatment of a metal part with a complex structure, effectively reduce the processing cost, improve the strengthening efficiency and realize variable cross-section consistency distribution of residual compressive stress in a component. The non-single incident angle unequal-strength laser shock processing method comprises the following steps: dividing a to-be-processed component into an area with the thickness greater than or equal to a set value and an area with the thickness less than the set value according to the thickness; determining laser processing parameters of each area according to the target processing effect of each area; and by adjusting the spatial positions of the to-be-machined component and the laser incident direction, realizing unequal-strength machining of different machining areas of the to-be-machined component.

Description

technical field [0001] The invention belongs to the technical field of laser shock, and in particular relates to a laser shock processing method with non-single incident angle and different intensities. Background technique [0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] Laser shock technology is especially suitable for strengthening small holes, chamfers, weld seams and grooves. Parts with complex surface structures often have different shape characteristics or failure modes in different regions, which requires different regions to correspond to different laser shock processing intensities, so that the overall comprehensive performance of the material can be improved. Taking the aero-engine blade as an example, different regions of the airfoil have different thickness distributions, which is a typical surface component with variable cross-section thickness. When per...

Claims

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Application Information

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IPC IPC(8): C21D10/00
CPCC21D10/005
Inventor 卢国鑫宋梓嘉刘欢季忠
Owner SHANDONG UNIV
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