Method and device for laser direct manufacturing for metal-matrix composite structural part

A technology of laser direct manufacturing and composite materials, which is applied in the direction of improving process efficiency and energy efficiency, and can solve the problems that cannot be manufactured with metal matrix composite materials, and achieve the effect of easy popularization and application and excellent mechanical properties

Inactive Publication Date: 2016-06-22
SHANGHAI SPACE PRECISION MACHINERY RES INST
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Problems solved by technology

[0005] In view of the fact that the existing metal matrix composite material preparation methods (including laser direct manufacturing) cannot be used for the manufacture of precise and complex metal matrix composite material structures, the purpose of the present invention is to provide a laser direct manufacturing method and device for metal matrix composite material structural parts

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  • Method and device for laser direct manufacturing for metal-matrix composite structural part
  • Method and device for laser direct manufacturing for metal-matrix composite structural part

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Embodiment Construction

[0034] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be pointed out that for those of ordinary skill in the art, several changes and improvements can be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0035] According to the present invention, a method for direct laser manufacturing of a metal matrix composite material structure includes the following steps:

[0036] Step 1: Generate the CAD model of the part on the computer, slice the CAD model, make the part discrete into a series of two-dimensional plane graphics, and obtain the scan trajectory instruction;

[0037] Step 2: According to the scanning track instruction, the powder feeding device which is kept coaxial with the laser ...

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Abstract

The invention provides a method for laser direct manufacturing for a metal-matrix composite structural part. The method comprises the following steps: step 1, generating a CAD model of the part on a computer, carrying out slicing treatment on the CAD model, and discretizing the complex three-dimensional part into a series of two-dimensional plane figures to obtain a scanning track instruction; step 2, starting to feed a metal powder through a powder feeding device keeping coaxial with a laser beam; step 3, turning on a high-power laser, and melting the metal powder through the laser beam; step 4, feeding a ceramic powder into a molten bath formed by the laser from the rear of the molten bath through a paraxial powder feeding system; and step 5, starting second-layer surface scanning until manufacturing for the whole part is completed. The invention further provides a corresponding device. The method and the device, which are provided by the invention, are capable of directly manufacturing the precise and complex metal-matrix composite structural part.

Description

Technical field [0001] The invention relates to the manufacturing field of metal matrix composite material structural parts, in particular to a laser direct manufacturing method and device for metal matrix composite material structural parts. Background technique [0002] Using metal as the matrix material, by adding ceramic reinforcing phases with special functions such as wear resistance, corrosion resistance, high temperature resistance, and oxidation resistance, the metal matrix composite material prepared has both the excellent properties of metal and ceramic, and can make up for their own shortcomings. At present, metal matrix composite materials have been widely used in various industrial fields. Due to the inherent characteristics of traditional casting, powder metallurgy, and hot pressing, it is often impossible to directly prepare precise and complex metal matrix composite structures. [0003] The rapid manufacturing method of metal parts based on local laser powder feed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105
CPCB22F3/105Y02P10/25
Inventor 赵耀邦李中权成群林欧阳自鹏陈文旗田莹
Owner SHANGHAI SPACE PRECISION MACHINERY RES INST
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