Device and method for the layered production of a three-dimensional object from a powdered constituent

A technology of three-dimensional objects and powder materials, which is applied in the directions of processing and manufacturing, manufacturing tools, additive manufacturing, etc., and can solve problems such as dissatisfaction

Active Publication Date: 2012-06-13
EOS ELECTRO OPTICAL SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the user is taught to use this particular powder, which in turn has different properties than those commonly used hitherto and may not meet all requirements

Method used

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  • Device and method for the layered production of a three-dimensional object from a powdered constituent
  • Device and method for the layered production of a three-dimensional object from a powdered constituent
  • Device and method for the layered production of a three-dimensional object from a powdered constituent

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Embodiment Construction

[0034] exist figure 1 The laser sintering system shown in FIG. 2 has an upwardly open container 1 with a vertically movable carrier 2 inside it, which carries an object 3 to be formed and defines a production area. The carrier 2 is adjusted vertically such that each layer of the object to be cured lies on the working plane 4 . An applicator 5 is further provided for applying the powdered manufacturing material curable by electromagnetic radiation. The device further has a laser 6 . The laser beam 7 generated by the laser 6 is deflected by the deflection device 8 onto the coupling window 9 , passes from the coupling window 9 into the processing chamber 10 and is focused at a predetermined point in the working plane 4 .

[0035] A control unit 11 is further provided, by means of which the components of the apparatus are controlled in a coordinated manner to perform the manufacturing process.

[0036] as in figure 2 As shown in , the applicator 5 has two clamping plates 51 ,...

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Abstract

Disclosed is a method in which a three-dimensional object is produced by successively compacting layers of a powdered constituent at the points corresponding to the cross-section of the object in the respective layer under the effect of a laser or another source of energy. The powdered constituent used in said method is a material containing old powder left over as non-compacted powder from the production of one or several previously created objects as well as some new powder never used before during a production process. The inventive method is characterized in that the powdered constituent is mechanically compacted when a layer is applied.

Description

technical field [0001] The present invention relates to a device and a method for the layered production of three-dimensional objects from powdery manufacturing materials. In particular, the present invention relates to a method of selective laser sintering, hereinafter simply referred to as a laser sintering method, and a laser sintering device. Background technique [0002] A known laser sintering method and a laser sintering device are known, for example, from DE 101 05 504 A1. In this method, in particular synthetic material powders, such as polyamides, are used. [0003] In the known method, a certain amount of old powder is always used in the manufacturing process, ie the powder left over as unsintered powder in one or more previous manufacturing processes. However old powders are subjected to an aging process. [0004] The old powder is thus thermally and / or thermo-oxidatively damaged and therefore has different material properties and thus different processing par...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C67/00
CPCB29C67/0077B29C64/153B33Y70/00B33Y30/00B33Y40/00B29C64/214B33Y50/02
Inventor 约亨·魏丁格尔弗兰克·米勒弗洛里安·普费弗科恩
Owner EOS ELECTRO OPTICAL SYST
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