An internal defect detection method for a multilayer metal lattice structure material based on Faster R-CNN

A lattice-structured, multi-layered metal technology for analyzing materials, material analysis using wave/particle radiation, measuring devices, etc.

Active Publication Date: 2019-02-19
YANSHAN UNIV
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Benefits of technology

The present in this patented technology uses advanced techniques from computerized tomography (CT) scanning for identifying hidden flaws or imperfections within complex structures such as steel wires used in building construction. This allows researchers to accurately determine if there are any issues that may affect their performance after installation on buildings.

Problems solved by technology

This patents describes how we discovered about new techniques called Additive Manufacturing Technology (AMLTM) that allows creation of metallurgically soundestablished structures without expensive equipment. These technologies allow us to control damage during fabrications while maintaining high quality standards. They use advanced technical means like XRG plasma fusion technique to achieve precise micrometer resolution measurements within specific dimensions. Additionally, this innovative approach helps identify small flaws in the interior of the structure being formed by adding layers of metal instead of just single crystal ones. Overall, our findings highlight the importance of studying and developing techniques for accurately identifying minute defects caused by external stresses in multilevel metal latsistle structures containing lithography cores.

Method used

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  • An internal defect detection method for a multilayer metal lattice structure material based on Faster R-CNN
  • An internal defect detection method for a multilayer metal lattice structure material based on Faster R-CNN
  • An internal defect detection method for a multilayer metal lattice structure material based on Faster R-CNN

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Embodiment Construction

[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The specific embodiments described here are only used to explain the present invention, not to limit the invention.

[0022] A method for detecting internal defects of a multilayer metal lattice structure material based on Faster R-CNN of the present embodiment comprises the following steps:

[0023] Step1. The Ti-6Al-4V titanium alloy multilayer metal lattice structure prepared by additive manufacturing technology is used as the sample to be tested. The sample is scanned by industrial CT to obtain the three-dimensional structure inside the sample. From the obtained three-dimensional 124 cross-sectional views of samples were taken equidistantly from the bottom to the top of the effective area in the vertical direction of the structure. The effective ...

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Abstract

The invention discloses an internal defect detection method for a multilayer metal lattice structure material based on Faster R-CNN. Combined with a convolution neural network, The three-dimensional structure of the multi-layer metal lattice material sample is obtained by scanning and detecting the multilayer metal lattice structure material sample with industrial CT. The two-dimensional gray image of the transverse section of the lattice structure is intercepted and a large number of defect samples in the gray image are sampled and learned. The defects in the gray image are identified and located with the learned defect features. The experimental results show that the average accuracy rate of internal defect detection is 99.5% for multi-layer metal lattice structure materials.

Description

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Claims

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Application Information

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Owner YANSHAN UNIV
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