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3D printing device for producing a spatially extended product

A 3D printing and equipment technology, applied in manufacturing, manufacturing tools, additive manufacturing, etc., can solve problems such as long cooling process

Inactive Publication Date: 2017-06-27
LILAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this 3D printing device is that the entire product is correspondingly heated by preheating, so that a lengthy cooling process must be carried out after 3D printing

Method used

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  • 3D printing device for producing a spatially extended product
  • 3D printing device for producing a spatially extended product
  • 3D printing device for producing a spatially extended product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] figure 1 The illustrated embodiment of the 3D printing device according to the invention comprises at least one first laser source 1 emitting first laser radiation 2 . The first laser source 1 may be a fiber laser. In the schematically shown scanning device 3 , which includes, for example, two movable mirrors and possibly suitable optical systems such as an F-theta objective, the first laser radiation 2 is deflected in the working area 4 Or focusing, in which the raw material to be processed, in particular delivered in powder form, is arranged.

[0026] The depicted 3D printing device also includes at least one second laser source 5 emitting second laser radiation 6 . The second laser source 5 can be semiconductor laser or CO 2 The laser and in particular can have a higher power than the first laser source 1 .

[0027] In a schematically shown scanning device 7 comprising, for example, two movable mirrors and possibly a suitable optical system such as an F-theta obj...

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PUM

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Abstract

The invention provides a 3D printing device for producing a spatially extended product, with at least one first laser light source (1) from which a laser radiation (2) can emerge, a working area (4) to which a starting material to be exposed to laser radiation (2) is supplied, wherein the working area (4) is arranged in the 3D printing device such that the laser radiation (2) is incident on the working area (4), and scanning arrangements (3,7) designed in particular as movable mirrors, wherein the scanning arrangements are able to supply the laser radiation (2) specifically to desired locations in the working area (4), wherein the at least one second laser light source (5) is designed in such a way that during operation of the device, a plurality of mutually spaced-apart points of incidence or areas of incidence of the second laser radiation (6) are generated on the working area (4).

Description

technical field [0001] The invention relates to a 3D printing device for producing spatially extended products according to the preamble of claim 1 . Background technique [0002] In conventional 3D printing systems, the raw material delivered in powder form is applied pointwise with energy, for example by means of a laser beam, so that a process such as melting or sintering of the raw material is initiated at the applied location, wherein this process leads to the joining of the raw material particles . The product to be produced is thus produced in layers by raster-like scanning of the laser beam over the working area. [0003] There are 3D printing devices in which preheating of the raw material takes place. This has the advantage that not the entire heating of the raw material has to be produced by the laser beam, for example raster-like guided over the raw material. The disadvantage of this 3D printing system is that the entire product is correspondingly heated by pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105B33Y30/00
CPCB33Y30/00B22F3/003B22F10/00B22F12/44B22F12/45B22F10/20B29C64/153B33Y10/00B29C64/268B29K2105/251G02B13/0005G02B26/105Y02P10/25B33Y40/20B29C2035/0838G05B2219/49023
Inventor 维塔利杰·利索塔奇恩库
Owner LILAS