LMD laser manufacturing process based on bionic function

A technology of manufacturing process and bionic function, which is applied in the field of LMD laser manufacturing process based on bionic function, can solve the problems of affecting the final performance of the metal coating layer and prone to brittle intermetallic compounds, so as to save raw materials, improve production efficiency and production quality , the effect of low cost

Active Publication Date: 2017-07-07
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
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Problems solved by technology

However, under an unreasonable manufacturing process, brittle intermetallic compounds are extremely prone to appear during the LMD process, seriously affecting the final performance of the metal coating

Method used

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  • LMD laser manufacturing process based on bionic function
  • LMD laser manufacturing process based on bionic function
  • LMD laser manufacturing process based on bionic function

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Embodiment Construction

[0040] The present invention provides an LMD laser manufacturing process based on bionic functions. In order to make the purpose, technical solution and effect of the present invention clearer and clearer, the present invention is further described in detail with reference to the accompanying drawings and examples. It should be pointed out that the specific implementations described here are only used to explain the present invention, not to limit the present invention.

[0041] A kind of LMD laser manufacturing process based on bionic functions, such as figure 1 Shown, concrete steps of the present invention are as follows:

[0042] (1) Solid modeling of molded parts:

[0043] The digital model type of the metal covering layer of the present invention is the digital model type of coaxial powder feeding forming, the powder is evenly dispersed into a ring shape and then converged into the focused laser beam, and falls into the cladding layer after melting, and the powder flow ...

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Abstract

The invention discloses an LMD laser manufacturing process based on a bionic function. The LMD laser manufacturing process concretely comprises the steps: step 1, conducting solid modeling for a formed part; step 2, transforming the solid model of a metal coating into an STL file format; step 3, formulating the hierarchical algorithm of the metal coating; step 4, planning the scanning path of the metal coating; step 5, conducting a forming test. The process realizes the control for the forming speed and precision of an LMD process, and ensures the production efficiency while obtaining the formed part with high quality. In addition, the obtained metal coating is a structure for simulating a tortoise shell and has the characteristics of high strength and light weight similar with the tortoise shell.

Description

technical field [0001] The invention belongs to the field of laser melting deposition, that is, an LMD additive manufacturing process, specifically an LMD laser manufacturing process based on a bionic function. Background technique [0002] As a kind of additive manufacturing technology, laser melting deposition technology (Laser Melting Deposition, LMD) is an organic combination of rapid prototyping technology and laser cladding technology. Metal powder is used as processing raw material, and high energy density laser beam is used to spray metal substrate The powder on the surface is clad and piled up layer by layer to form a manufacturing technology for metal parts. The whole LMD system includes laser, laser refrigeration unit, laser optical path system, laser processing machine tool, laser melting deposition chamber, powder feeding system and process monitoring system, etc. Compared with traditional processing technology, LMD technology can greatly reduce material waste,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105B33Y10/00B33Y50/02
CPCB33Y10/00B33Y50/02B22F10/00B22F10/322B22F10/25B22F10/36B22F10/366B22F12/70B22F10/80Y02P10/25
Inventor 占小红齐超琪周俊杰张才林张琪
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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