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Electron beam selective melting forming method for weld-less metal honeycomb components

A technology of metal honeycomb and selective melting, which is applied in the field of electron beam selective melting of weldless metal honeycomb components. Time and other issues, to achieve the effect of simple and reliable operation, strong repeatability and high production efficiency

Active Publication Date: 2015-04-01
NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the metal honeycomb components prepared by traditional welding methods are limited in the shape and size of the pores, and the existence of welds seriously affects their performance.
Although electric discharge machining and powder metallurgy can also be used to prepare metal honeycomb components without welds as a whole, the processing of electric discharge takes a long time, the cost of the project is high, and the diversification of the pore structure cannot be realized; while the powder metallurgy is The binder is added to the metal or alloy powder, and the compact is formed after uniform mixing, and then the compact is dried, the binder is removed, and then sintered. Therefore, the preparation process of the powder metallurgy method is complicated, and the produced Metal honeycomb components have problems such as easy deformation and collapse of the honeycomb structure, and low mechanical properties

Method used

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  • Electron beam selective melting forming method for weld-less metal honeycomb components
  • Electron beam selective melting forming method for weld-less metal honeycomb components
  • Electron beam selective melting forming method for weld-less metal honeycomb components

Examples

Experimental program
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Embodiment 1

[0047] The specific specifications of the weldless metal honeycomb component to be formed in this embodiment are: the material is titanium alloy (specifically TiAl alloy), the size is 200mm (length) × 100mm (width) × 18mm (height), and it has a regular hexagon (The diameter of the inscribed circle of a regular hexagon is 1.6mm) A metal honeycomb plate without welds with a honeycomb through-hole structure.

[0048] combine figure 1 and figure 2 , the electron beam selective melting molding method of the non-welded metal honeycomb member of the present embodiment comprises the following steps:

[0049] Step 1, according to the structure and size of the weldless metal honeycomb member to be formed, utilize the three-dimensional modeling software to set up the three-dimensional solid model of the weldless metal honeycomb member in the computer; the three-dimensional modeling software that the present embodiment adopts is Solidworks software ; The three-dimensional solid model o...

Embodiment 2

[0064] The specific specifications of the weldless metal honeycomb component to be formed in this embodiment are: the material is titanium alloy (specifically Ti6Al4V alloy), the outer diameter is 149mm, the inner diameter is 117mm, the height is 53.5mm, and it is arranged in an orderly manner along the radial direction A non-welded metal honeycomb rotating part with a regular hexagonal (diameter of the inscribed circle of the regular hexagon is 1.6mm) honeycomb through-hole structure.

[0065] combine figure 1 and figure 2 , the electron beam selective melting molding method of the non-welded metal honeycomb member of the present embodiment comprises the following steps:

[0066] Step 1, according to the structure and size of the weldless metal honeycomb member to be formed, use three-dimensional modeling software to establish a three-dimensional solid model of the weldless metal honeycomb member; the three-dimensional modeling software used in this embodiment is Solidworks...

Embodiment 3

[0081] The specific specifications of the weldless metal honeycomb component to be formed in this embodiment are: the material is nickel alloy (the specific grade is Inconel625), the outer diameter is 120mm, the inner diameter is 60mm, and the height is 35mm, and there are orderly arranged along the radial direction. Regular hexagonal (diameter of the inscribed circle of the regular hexagon is 3mm) non-welded metal honeycomb rotating parts with honeycomb through-hole structure.

[0082] to combine figure 1 and figure 2 , the electron beam selective melting molding method of the non-welded metal honeycomb member of the present embodiment comprises the following steps:

[0083] Step 1, according to the structure and size of the weldless metal honeycomb member to be formed, use three-dimensional modeling software to establish a three-dimensional solid model of the weldless metal honeycomb member; the three-dimensional modeling software used in this embodiment is Pro / Engineer so...

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Abstract

The invention provides an electron beam selective melting forming method for weld-less metal honeycomb components. The electron beam selective melting forming method includes: building a three-dimension solid model of the weld-less metal honeycomb components, performing the slicing process to acquire section information of each of slices including a 1# slice, a 2# slice...and an n# slice, putting a substrate and metal powder into an electron-beam quick former, preheating the substrate, preparing a 1# solid slice layer, preparing an i# slice layer (i=2,3...n), determining the finish of a scanning process when the i=n, and removing the unformed powder to obtain the weld-less metal honeycomb components. The electron beam selective melting forming method is easy to control, convenient and reliable to operate, and has the advantages of short production cycle, high production efficiency and high repeatability. The weld-less metal honeycomb components formed by the method have excellent mechanical property, honeycomb cells thereof are not easy to deform or collapse, the structure of the honeycomb cells can be regulated optionally according to requirements, and accordingly the weld-less metal honeycomb components are adaptable to large-scale industrial production.

Description

technical field [0001] The invention belongs to the technical field of rapid prototyping of metal components, and in particular relates to an electron beam selective melting forming method of a weldless metal honeycomb component. Background technique [0002] Metal honeycomb is a kind of structural and functional integrated material, which is composed of metal skeleton and alternate honeycomb holes. It is named because its internal structure contains many honeycomb through holes. Metal honeycomb has unique properties and is widely used in aerospace, transportation, energy and environmental protection, mechatronics and other fields, mainly for separation, heat exchange, sound absorption, energy storage, shock absorption and other functions. [0003] For example, an important part in the exhaust system of an aero-engine—the oil-air separator. The function of the oil-air separator is to separate the lubricating oil in the exhaust for recycling. Its performance is of great signi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/11
Inventor 汤慧萍赵培贾文鹏杨广宇逯圣路
Owner NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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