Method for converting gradient material models into additive manufacturing data formats

A gradient material, additive manufacturing technology, applied in additive processing, image data processing, electrical digital data processing, etc., can solve the problem that the additive manufacturing process cannot be directly applied, and achieve the effect of high-precision transfer

Active Publication Date: 2017-05-31
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

[0004] However, the key problem at present is that there is a barrier between the gradient material model widely accepted and recognized by scholars at home and abroad and the new standard (AMF) format, so the research results formed in the field of gradient composite modeling in the past ten years cannot be directly applied in the additive manufacturing process
However, the solution to the transformation of the parameterized model of gradient materials and the AMF format file has been rarely studied abroad, and it is still blank in China.

Method used

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  • Method for converting gradient material models into additive manufacturing data formats
  • Method for converting gradient material models into additive manufacturing data formats
  • Method for converting gradient material models into additive manufacturing data formats

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Embodiment Construction

[0031] In order to realize the high-precision and high-efficiency transition from the gradient material parameterized model to the AMF format file, the present invention takes the mapping relationship between the parameter space and the physical space of the gradient material parameter model as the starting point, since the model parameter domain is in the form of cubes and squares For this type of regular area, first divide the parameter domain into tetrahedrons or triangular patches, obtain the curved tetrahedron and triangular elements suitable for AMF format representation through the mapping relationship, and then read the corresponding material, color and other information at the grid nodes , write it into the AMF file according to the standard format, and finally organize the acquired curved edge mesh units and other information in the form of XML documents to complete the transfer between the gradient material model and the additive manufacturing format file.

[0032] T...

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Abstract

The invention relates to a method for converting gradient material models into additive manufacturing data formats. The method includes carrying out tetrahedron or triangle patch division on parameter domains; acquiring curve-edge tetrahedron and triangle units adaptable to AMF (additive manufacturing formats) by the aid of mapping relations; reading information of corresponding materials, colors and the like at grid nodes; writing the information into AMF files according to standard formats; organizing acquired curve-edge mesh units and other acquired information in the form of XML (extensive markup language) documents and completely carrying out transmission between the gradient material models and the additive manufacturing format files.

Description

technical field [0001] The invention relates to the research fields of gradient composite material modeling and additive manufacturing, that is, the problem of converting a gradient composite material model into a standard format file required in the additive manufacturing process. Background technique [0002] With the rapid development of industrial technology, parts composed of single or homogeneous materials have been difficult to meet the performance requirements of products. However, in engineering practice, designers hope to obtain the best use functions of parts, for example: in the field of aerospace , the components are often served in environments such as ultra-high temperature, ultra-high speed, and complex thermal loads. The inner side of functionally graded material components composed of ceramics / metals exhibits high heat resistance, and the outer side is composed of metal materials to present better mechanical properties. In terms of strength performance and ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06T17/10B33Y99/00
CPCB33Y99/00G06F30/17G06T17/10
Inventor 杜珂万能席增飞段永吉
Owner NORTHWESTERN POLYTECHNICAL UNIV
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