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Device for producing a three-dimensional object in layers

A technology of three-dimensional objects and objects, applied in the direction of processing and manufacturing, manufacturing tools, additive manufacturing, etc., can solve problems such as the inability to optimize working conditions, and achieve the effect of improving surface characteristics and dimensional stability

Active Publication Date: 2009-08-05
EOS ELECTRO OPTICAL SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this device, however, only one parameter can be adjusted (the angle between the lower edge of the scraper and the working plane), so that it is not possible to optimize the working conditions for all different requirements

Method used

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  • Device for producing a three-dimensional object in layers
  • Device for producing a three-dimensional object in layers
  • Device for producing a three-dimensional object in layers

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0015] The following will refer to Figure 1 to Figure 4 An exemplary apparatus for layer-by-layer manufacturing of three-dimensional objects according to the present invention is described.

[0016] As an example of an exchangeable coating module used in coating, a doctor blade module is given here.

[0017] Such as figure 1 As shown, the device for the layered manufacture of objects has an upwardly open structural container 1 . Arranged in the container 1 is a carrier 2 with a substantially planar upper side oriented substantially parallel to the upper edge of the structural container. The support 2 is designed to support the object 3 to be formed. exist figure 1 The object 3 to be formed is shown in an intermediate state in which a plurality of layers of powdered constituent material have been selectively cured and surrounded by uncured constituent material 4 . Such as figure 1 As indicated by the vertical double arrow, the stand 2 can be moved in the vertical directi...

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Abstract

The invention relates to a device for producing a three-dimensional object (3) by solidifying powdery build-up material on the points corresponding to the cross-section of the object (3) to be produced in the respective layer, under the action of a laser or another energy source. Said device comprises a carrier (2) on which the object (3) is produced, and a coating element (6, 7) for applying a layer of the build-up material to the carrier or a previously at least partially solidified layer. The coating element (6, 7) comprises a receiving device (40) for receiving a coating module such as a blade module (30). The receiving device (40) is embodied in such a way that the coating module (30) can be inserted into the receiving device (40) in a replaceable manner and removed therefrom such that a pre-determined position of the coating module (30) is fixed in the receiving device (40) in a reproducible manner.

Description

technical field [0001] The invention relates to a device for the layered production of three-dimensional objects from powdery constituent materials. Background technique [0002] DE 195 14 740 discloses a device and a method for producing three-dimensional objects by means of laser sintering, in which the coating and smoothing of layers of powdery constituent material in the working plane is carried out by an applicator in the form of a doctor blade. On its lower edge, the doctor blade has a bevel on the side in the coating direction and a further bevel on the side opposite to the coating direction, said bevel serving to level the cured layer. A modified embodiment has roundings instead of the chamfer. [0003] The optimum values ​​for the different dimensions of the doctor blade depend in practice on various parameters, among them the layer thickness of the layer to be applied and the material properties of the powdery constituent material. Values ​​are selected here whic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C67/00B22F3/105B22F3/00
CPCB29C67/0085B22F3/1055B29C67/0077B22F2003/1056B29C64/153B29C64/25Y02P10/25B22F10/28B22F12/67
Inventor J·蒙特罗-埃斯库德J·魏丁格尔
Owner EOS ELECTRO OPTICAL SYST
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