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Device and method for additive manufacturing

A technology of additive manufacturing and equipment, applied in the field of additive manufacturing equipment, can solve the problem of different actual temperature and preheating temperature

Inactive Publication Date: 2018-07-31
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The case of a heatable base plate is very easy to implement, but as the height of the structure increases across the different layers of molten material and powder, the actual temperature in the uppermost powder layer differs from the desired desired temperature. thermal temperature is significantly different

Method used

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  • Device and method for additive manufacturing

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Embodiment Construction

[0027] The drawings and description are only examples of the invention.

[0028] The device 1 has, as in the prior art, a movable platform 4 on which a powder bed 7 is formed. The platform 4 is movable in a downward direction (z-direction) in order to be able to apply a new layer of powder. The component 10 to be produced is present or produced in the powder bed 7 .

[0029] In the process chamber 31 , the powder is selectively densified, ie sintered or melted, layer by layer by means of an energy beam 13 , in particular the laser beam 13 of a laser 29 , and a corresponding scanner 34 .

[0030] By means of the brush 25 , as in the prior art, the powder 28 is applied as a new layer, after which the platform 4 is lowered by a certain value.

[0031] According to the invention, however, the freshly applied powder 28 is preheated. This can be done in different ways and methods.

[0032] There can be further heating devices which preheat the entire powder storage 16 according ...

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Abstract

A device and a method by means of which the powder to be applied to another layer that is to be coated is preheated, allow the time to carry out the method to be significantly shortened.

Description

technical field [0001] The invention relates to a device for additive manufacturing and a corresponding manufacturing method. Background technique [0002] Generative or additive manufacturing methods are a novel way of producing components with high geometrical complexity. The method is characterized in that the production is performed from amorphous or shape-neutral materials, such as powders, liquids, by means of chemical and / or physical processes based on virtual data models. [0003] Of particular interest for turbine installation and service are beam melting methods such as Selective Laser Melting (SLM), Laser Metal Deposition (LMD) or Electron Beam Melting (EBM), which enable metal Processing of materials. [0004] Since the energy input by the melting jet takes place very locally and the heat dissipation via the pulverulent starting material is very poor, high thermal gradients arise which promote the formation of hot cracks. In particular, high-temperature-resist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105B33Y30/00B33Y10/00C04B35/64B22F5/00B22F5/04F01D5/00B22F1/142
CPCB22F5/009B22F5/04C04B35/64B22F2999/00B33Y10/00B33Y30/00B29C64/153B29C64/295Y02P10/25B22F10/28B22F12/13B22F12/57B22F12/60B22F1/142B22F2207/15B33Y40/10B22F10/25B22F2998/10
Inventor 克里斯蒂安·布伦胡贝尔托马斯·索勒
Owner SIEMENS AG
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