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Method for detecting shot blasting strengthening surface coverage rate

A surface coverage and detection method technology, which is applied in image enhancement, filling planes with attributes, image data processing, etc., can solve the problems of inaccurate estimation of processing time and affecting processing efficiency, etc.

Pending Publication Date: 2021-01-05
SHANGHAI AIRCRAFT MFG
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Problems solved by technology

If the obtained coverage data is inaccurate, the estimated processing time will be inaccurate, which will affect the processing efficiency

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  • Method for detecting shot blasting strengthening surface coverage rate

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Embodiment Construction

[0030] Next, the inventive concept of the present invention will be described in detail with reference to the accompanying drawings. What is described here is only a preferred embodiment of the present invention, and those skilled in the art can think of other ways to realize the present invention on the basis of the preferred embodiments, and the other ways also fall within the scope of the present invention. In the following specific descriptions, such terms as "first", "second", etc. containing numerals are used to distinguish different regions, components, etc., and these terms are for the purpose of illustration rather than limitation.

[0031] see figure 1 , which shows the detection method of shot peening surface coverage according to the present invention. This detection method can be figure 1 Operation in the manner shown includes image acquisition steps, roughness calculation steps, filter processing steps, and coverage calculation steps. In the image acquisition ...

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Abstract

The invention relates to a method for detecting the shot blasting strengthening surface coverage rate. The method comprises an image acquisition step, a roughness calculation step, a filtering processing step, a coverage rate calculation step and the like. In the image acquisition step, a shooting system is used for shooting the surface of the part subjected to shot blasting treatment so as to acquire an image of the surface of the part; in the roughness calculation step, the roughness of each region of the image is calculated by using an average pooling or maximum pooling algorithm; in the filtering processing step, roughness filtering is carried out on the image to identify a first area subjected to shot blasting processing and a second area not subjected to shot blasting processing; inthe coverage rate calculation step, the proportion of the first area in the image is confirmed to calculate the shot blasting coverage rate. According to the detection method, the accurate shot blasting coverage rate can be obtained.

Description

technical field [0001] The invention relates to the field of aircraft production detection, in particular to a detection method for shot peening surface coverage. Background technique [0002] The aircraft needs to withstand environmental conditions with a large temperature range and a large pressure range. In addition, it must also withstand various alternating forces such as tension, twist, and pressure. Therefore, various parts of the aircraft need to be shot peened to strengthen Its structural performance enables the aircraft to adapt to the above environmental conditions and withstand various alternating forces. [0003] In shot peening, high-speed projectiles hit the surface of the material to remove the surface residual stress of the material and form a surface layer with compressive stress, which ultimately improves the fatigue life of the material. The surface coverage rate of a part is the ratio of the coverage area of ​​the pit formed by the projectile hitting th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T5/00G06T11/40
CPCG06T7/001G06T11/40G06T5/70
Inventor 汪顺利陈羽雨万光华王飞亚付小强曹安李亚萍
Owner SHANGHAI AIRCRAFT MFG
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