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Method for providing an identifiable powder volume and method for producing an object

A powder and object technology, applied in the field of laser sintering to manufacture three-dimensional objects, can solve the problems of time-consuming and inappropriate, and achieve the effect of ensuring reproducibility

Active Publication Date: 2011-11-09
EOS ELECTRO OPTICAL SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is time-consuming and not suitable for all situations

Method used

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  • Method for providing an identifiable powder volume and method for producing an object
  • Method for providing an identifiable powder volume and method for producing an object
  • Method for providing an identifiable powder volume and method for producing an object

Examples

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Embodiment Construction

[0016] First, the first embodiment will be described below by taking laser sintering as an example with reference to the drawings.

[0017] figure 1 The laser sintering equipment 1 exemplarily shown in includes an upwardly opening construction chamber 100 , in which a vertically displaceable carriage 200 is located, which carries the object 2 to be constructed and delimits the construction area. The carriage 200 is arranged vertically such that the respective layer to be hardened of the object 2 is located in the working surface 400 . Furthermore, an application device 500 is provided for applying a powder 3 which is curable by electromagnetic radiation. The powder 3 is fed in a certain amount from the storage container 24 to the application device 500 via a metering device 600 . In addition, a laser 700 is provided which generates a laser beam 700 a which is deflected by a deflection device 800 onto an input window 900 from which it enters the processing chamber 1000 and ...

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Abstract

In a method for providing a material volume for a generative production method, a three-dimensional object (2) is formed by selective compacting of layers of a material at points corresponding to the cross-section of the object (2) in the respective layer. The present invention aims to provide a method with which the quality of the produced objects can be verifiably documented and thus further improved. Said method is characterized by the following steps: providing at least one first material volume that is characterized by at least one attribute, capturing data that relate to the at least one attribute of the first material volume, and storing the data relating to the at least one attribute of the first material volume.

Description

technical field [0001] The invention relates to a method for providing a powder combination, in particular for laser sintering, and to a method for producing a three-dimensional object, in particular by means of laser sintering. Background technique [0002] In the field of layered construction methods, especially in laser sintering, the quality of the objects produced depends on the quality and properties of the powders used. The properties of the powders used are often not well known, since the composition of the powders is largely unknown due to the admixture of powders used in previous production processes (so-called old powders). [0003] To determine the powder properties, the so-called melt volume rate method (Melt Volume Rate: MVR) is used, for example, in which a powder melt (Pulverschmelze) is generated and the viscosity of the powder melt is determined, from which the age of the powder can be inferred ( Alter). In addition, the melting temperature is determined....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C67/00B22F3/105
CPCB22F3/1055B22F2003/1057B29C67/0096B29C67/0088B22F2003/1059B33Y50/00B33Y70/00B33Y30/00B33Y40/00B33Y80/00B33Y10/00B29C64/393B29C64/357B29C64/35Y02P10/25B22F10/28B22F10/80B22F10/73Y02P10/20
Inventor T·马特斯L·胡梅勒M·弗隆麦耶
Owner EOS ELECTRO OPTICAL SYST
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