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Nondestructive testing method for incomplete fusion defect, testing standard part and manufacturing method thereof

A technology for non-fusion defects and non-destructive testing, which is used in additive manufacturing, preparation of test samples, measuring devices, etc. performance and reliability

Active Publication Date: 2020-05-29
AECC SHANGHAI COMML AIRCRAFT ENGINE MFG CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, the inventors have found in long-term practice that the above method cannot accurately detect unfused defects, mainly because the detection parameters that can clearly detect holes cannot accurately reflect the situation of unfused defects

Method used

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  • Nondestructive testing method for incomplete fusion defect, testing standard part and manufacturing method thereof
  • Nondestructive testing method for incomplete fusion defect, testing standard part and manufacturing method thereof
  • Nondestructive testing method for incomplete fusion defect, testing standard part and manufacturing method thereof

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Embodiment Construction

[0031] A variety of different implementations or examples for implementing the described subject technical solutions are disclosed below. In order to simplify the disclosure, the following describes the specific examples of each component and arrangement, of course, these are only examples, not limiting the protection scope of the present invention. "One embodiment," "an embodiment," and / or "some embodiments" mean a feature, structure, or characteristic that relates to at least one embodiment of the present application. Therefore, it should be emphasized and noted that two or more references to "an embodiment" or "an embodiment" or "an alternative embodiment" in different places in this specification do not necessarily refer to the same embodiment . In addition, certain features, structures or characteristics of one or more embodiments of the present application may be properly combined.

[0032] The flow chart is used in this application to illustrate the operations performed...

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Abstract

The invention relates to a nondestructive testing method for incomplete fusion defects, a testing standard part and a manufacturing method thereof. The nondestructive testing method is used for nondestructive testing of incomplete fusion defects of an additive manufacturing workpiece. The manufacturing method of the incomplete fusion defect standard part comprises: A, setting a incomplete defect area of the standard part, and in the non-fusion defect area, setting the proportion of the non-fusion defects to the non-fusion defect area to be a first proportion value; B, selecting an additive manufacturing forming process for manufacturing the incomplete fusion defect area, and acquiring a first process parameter of the additive manufacturing forming process corresponding to the first proportional value; and step C, executing the additive manufacturing forming process based on the first process parameter so as to form the incomplete fusion defect area. The nondestructive detection methodfor the incomplete fusion defect improves the accuracy and reliability of the nondestructive detection result of the incomplete fusion defect of the additive manufacturing workpiece.

Description

technical field [0001] The invention relates to the field of processing quality detection of workpieces, in particular to a detection method for unfused defects of additively manufactured workpieces, a detection standard part and a manufacturing method thereof. Background technique [0002] Additive Manufacturing (AM) technology, commonly known as 3D printing, three-dimensional printing (ThreeDimension Printing) technology, metal additive manufacturing technology is gradually mature, has been widely used in aerospace, medical, automotive, nuclear power and other fields. For example, Selective Laser Melting (SLM) is considered to be one of the most potential AM technologies, due to the use of a laser beam with a finely focused spot as the shaping energy source, high-speed and high-precision scanning galvanometer as the processing beam control unit and the use of Thinner layer thickness control technology, compared with other AM technologies, SLM technology has more advantages...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28G01N1/44B22F3/105B33Y10/00B33Y40/00
CPCG01N1/28G01N1/44B33Y10/00B33Y40/00G01N2203/0298G01N2203/027G01N2203/0641B22F10/00B22F10/38B22F12/90B22F10/28Y02P10/25B22F10/36B22F10/366B33Y50/02B22F10/85
Inventor 李雅莉雷力明付俊何艳丽郑寅岚
Owner AECC SHANGHAI COMML AIRCRAFT ENGINE MFG CO LTD
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