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Design optimization and preparation method for ordered porous metal

A porous metal and metal technology, which is applied in the field of design optimization and preparation of ordered porous metals, can solve the problems of insufficient pore structure design and controllability, disordered pore structure, etc., to improve design and controllability. , The effect of reducing production cost and simple process

Active Publication Date: 2016-04-20
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the lack of designability and controllability of the pore structure of the traditional percolation method in the prior art, and the disorder of the pore structure, the present invention provides a design optimization and preparation method of an ordered porous metal. By designing an ordered porous metal The pore structure is optimized to obtain the corresponding prefabricated body structure, and then the traditional infiltration method is improved to prepare porous metal, and the rapid prototyping technology is used to prepare the prefabricated body required for infiltration by laser sintering with coated sand as raw material, so as to achieve the orderly porous structure. Designability and controllability for ordered porous metals

Method used

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  • Design optimization and preparation method for ordered porous metal
  • Design optimization and preparation method for ordered porous metal
  • Design optimization and preparation method for ordered porous metal

Examples

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Embodiment 1

[0025] The ordered porous metal percolation of square holes includes the following steps:

[0026] The three-dimensional structure of the ordered porous metal with square holes is designed by using the three-dimensional drawing software ProENGINEER. The metal structure is a structure in which 3mm square holes are repeatedly arranged, and the complementary structure of the metal structure obtains the prefabricated structure accordingly. The structure of the ordered porous metal and the prefabricated body is a two-way interconnected structure. The matrix part and the pore part of this structure are completely interconnected and integrated, and the prefabricated body has several channels running through the entire prefabricated body in a certain direction, which can be used as seepage internal channels. . The structural design of the preform will be further optimized during the preparation of the preform and the next infiltration process. After the preliminary design is complete...

Embodiment 2

[0030] The orderly porous metal percolation of spherical pores includes the following steps:

[0031] Use the three-dimensional drawing software ProENGINEER to design the three-dimensional structure of the ordered porous metal with spherical holes. The metal structure is repeatedly arranged with 10mm spherical holes, and its complementary structure is correspondingly obtained. In this structure, the matrix part and the hole part are completely connected and integrated, and the prefabricated body has several channels running through the entire prefabricated body in a certain direction, which can be used as seepage internal channels. The structural design of the preform will be further optimized during the preparation of the preform and the next infiltration process. After the preliminary design is completed, the numerical simulation software ProCAST is used to simulate the seepage process. During the simulation, the pouring temperature is 850°C and the preheating temperature is...

Embodiment 3

[0035] The ordered porous metal percolation of spherical and cylindrical composite pores includes the following steps:

[0036] Use the 3D drawing software ProENGINEER to design the 3D structure of square holes and ordered porous metal. The metal structure is arranged with 10mm spherical holes and 5mm diameter and 10mm high cylindrical holes at intervals. The complementary structure of the metal structure is correspondingly obtained. The structure of the metal and the prefabricated body is a double-pass interconnection structure. The matrix part and the hole part of this structure are completely connected and integrated, and the prefabricated body has several channels running through the entire prefabricated body in a certain direction, which can be used as seepage internal channels. The structural design of the preform will be further optimized during the preparation of the preform and the next infiltration process. After the preliminary design is completed, the numerical sim...

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Abstract

The invention discloses a design optimization and preparation method for ordered porous metal, belonging to the technical field of metal preparation. The design optimization and preparation method comprises the steps of designing an ordered porous structure by using three-dimensional modeling software; simulating a seepage process and optimizing a prefabricated structure by using a numerical simulation method; preparing a precoated sand perform by using a laser sintering method; seeping by using a seepage method to obtain an original ingot of the porous metal; and finally, scattering the perform by heating to finally obtain the ordered porous metal. By using the method, the designability and reliability of ordered porous aluminum holes are achieved, and the aim of designing the sizes, shapes and orders of the holes is achieved; the minimum apertures of the holes obtained by using the method are 2mm, and the design and preparation of ordered porous aluminum such as spherical holes, square holes, cylindrical holes and various combined holes with simple hole forms are realized. The perform required by the seepage method is prepared by using a rapid molding technology, so that the production efficiency is increased, and the production cost is reduced. The method has the advantages of designability, controllability, low cost, high efficiency, recyclable raw materials and the like.

Description

Technical field [0001] The invention involves a design optimization and preparation method of an orderly porous metal, which belongs to the technical field of metal preparation. Background technique [0002] Due to its good performance, such as high performance, such as higher intensity and stiffness, it has the characteristics of integrated structural function, playing an important role in the fields of aerospace and automotive industry.With the further research and discovery of porous materials, the pore structure has an important impact on the performance of porous materials. Therefore, the design and controllable design of the hole structure have become the focus of attention when people study porous materials.On this basis, in recent years, the orderly porous metals with non -random holes have attracted more attention. [0003] Judging from the current status of porous metal preparation, the preparation process determines the structural characteristics of porous metals. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/08B33Y10/00
CPCC22C1/08C22C1/082
Inventor 郝海王晗
Owner DALIAN UNIV OF TECH
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