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Aluminum alloy surface wire drawing quality detecting and evaluating method

A technology of aluminum alloy surface and evaluation method, which is applied in the direction of optical testing for flaws/defects, etc., to achieve the effect of simple and effective evaluation algorithm, improved clarity and detail resolution, and strong three-dimensional effect

Active Publication Date: 2017-08-11
CRRC QINGDAO SIFANG CO LTD
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Problems solved by technology

In order to scientifically analyze the basic laws of surface drawing effect and drawing process, and guide the design of follow-up drawing process experiments, it is necessary to comprehensively evaluate the drawing quality, but there is no mature detection and evaluation method at present.

Method used

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  • Aluminum alloy surface wire drawing quality detecting and evaluating method
  • Aluminum alloy surface wire drawing quality detecting and evaluating method
  • Aluminum alloy surface wire drawing quality detecting and evaluating method

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Embodiment Construction

[0029] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] A method for detecting and evaluating the quality of aluminum alloy surface drawing, comprising the following steps,

[0031] S1, produce working test pieces of standard size, after cleaning the surface of the working test pieces, extract test samples that meet the requirements, and label each test sample.

[0032] Before mass production, try to produce a "working sample", and the area of ​​the working sample is not less than 5×1m 2 , the surface after wire drawing is blown on the working surface with high-pressure wind, clears the surface, drills samples with a certain distribution, and pays attention to the protective surface. location such as figure 1 As shown, the test sample area is not less than 20×20mm 2 , the total number of testing samples is not less than 5. It should be noted that the number of testing samples can...

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Abstract

The invention provides an aluminum alloy surface wire drawing quality detecting and evaluating method. The confocal microtechnique is utilized, data collection is conducted on determined detecting points on a work test piece, the three-dimensional data is calculated and evaluated according to different formulas, and accordingly the wire drawing quality is determined. The aluminum alloy surface wire drawing quality detecting and evaluating method is high in image resolution and detail resolution, and the evaluating algorithm is simple and effective.

Description

technical field [0001] The invention relates to a detection and evaluation method for the surface drawing quality of an unpainted aluminum alloy. Background technique [0002] Generally, in order to improve the appearance and decoration performance of rail vehicle bodies, most of them use painted car bodies, that is, the surface treatment method of paint coating. The whole process is complicated and time-consuming and labor-intensive. Alloy surface brushed car body, this car body does not use putty and paint, and can also reduce welding wire and gas consumption, not only can reduce production costs, but also reduce car body weight, reduce energy consumption, the focus is on environmental protection, and it has a distinctive technology advantages and competitiveness. In order to scientifically analyze the basic laws of surface drawing effect and drawing process, and guide the design of follow-up drawing process experiments, it is necessary to comprehensively evaluate the dra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/88
Inventor 路浩陈旭张铁浩
Owner CRRC QINGDAO SIFANG CO LTD
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