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Three-dimensional scanning forming device and method based on laser forming

A three-dimensional, laser forming technology, applied in the direction of manufacturing auxiliary devices, solid material additive processing, additive manufacturing, etc., can solve the problems of restricting technology promotion and application, low scanning efficiency, etc., to improve printing efficiency, improve printing accuracy, The effect of avoiding interlayer errors

Inactive Publication Date: 2019-06-28
NAT INST CORP OF ADDITIVE MFG XIAN
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  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The laser additive technology currently used is to slice the CAD model into several sections, and then scan and shape each section, and finally superimpose it into a solid part layer by layer. This method is essentially a two-dimensional plane forming method. The scanning efficiency is low, which seriously restricts the popularization and application of this technology

Method used

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  • Three-dimensional scanning forming device and method based on laser forming
  • Three-dimensional scanning forming device and method based on laser forming
  • Three-dimensional scanning forming device and method based on laser forming

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Embodiment Construction

[0031] The present invention is described in further detail below in conjunction with accompanying drawing:

[0032] Such as figure 1 As shown, a three-dimensional scanning forming device based on laser forming includes a collimating beam expander 2, an adjusting mirror 3, a vibrating mirror 4 and a field mirror 7; the collimating beam expanding mirror 2, the adjusting mirror 3, and the vibrating mirror 4 are in On a straight line, the positions of the collimator beam expander 2 and the galvanometer 4 are fixed, the adjustment mirror 3 can move in a straight line between the collimator beam expander 2 and the galvanometer 4, and the field lens 7 is arranged on the galvanometer 4 to deflect light On the exit path, the light exit of the field lens 7 is provided with a printing platform 9, and the distance between the printing platform 9 and the field lens 7 remains constant; the printing platform 9 is used to place molding materials; the thickness of the molding material of the ...

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Abstract

The invention discloses a three-dimensional scanning forming device and method based on laser forming. A collimating beam expander, an adjusting lens and a galvanometer are installed on a straight line. The collimated beam expander is used for diverging small light spots output by a laser device, parallel light after beam expanding enters the adjusting mirror, the transmission distance of a lightbeam is adjusted by the adjusting lens, namely an optical path is changed, the diameter and focal length of focused light spots are adjusted, the light beam deflects optionally by the galvanometer, finally, the light beam deflected by the galvanometer is focused through a field lens, a small light spot high-energy light beam is formed and moves on a printing platform, and a forming material on theprinting platform is printed and formed by the focused light spots focused by the field lens. According to the device, the focusing height of the light beam in the height direction is adjusted by theadjusting lens, meanwhile, in cooperation with the galvanometer, movement of a light beam focus on a plane is adjusted, thus, forming and movement of the focused light spots in a three-dimensional space are realized, continuous forming in a three-dimensional space can be realized, and the printing precision, scanning efficiency and printing precision are improved.

Description

technical field [0001] The invention belongs to the technical field of additive manufacturing laser forming, and in particular relates to a three-dimensional scanning forming device and forming method based on laser forming. Background technique [0002] Additive manufacturing technology is based on three-dimensional CAD model data, and manufactures parts by stacking and accumulating materials. Due to its high forming precision, laser additive manufacturing technology can realize the direct forming of any complex structure, and has been widely used in various fields. [0003] The current laser additive technology is to slice the CAD model into several sections, and then scan and shape each section, and finally superimpose it into a solid part layer by layer. This method is essentially a two-dimensional plane forming method. The scanning efficiency is low, which seriously restricts the popularization and application of this technology. Therefore, it is urgent to find new sc...

Claims

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Application Information

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IPC IPC(8): B29C64/153B29C64/268B29C64/30B33Y10/00B33Y30/00B33Y40/00
Inventor 陈祯邹亚桐张树哲卢秉恒张丽娟魏培
Owner NAT INST CORP OF ADDITIVE MFG XIAN
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