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Method and apparatus for producing a three-dimensionally shaped object, and three dimesionally shaped object

A three-dimensional shape and article technology, which is applied in the field of a device for manufacturing the article, a three-dimensional shaped article, and a device for manufacturing a three-dimensional shaped article, to achieve the effect of maintaining basic uniformity and improving maintainability

Inactive Publication Date: 2010-02-24
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In other words, there is concern that the energy of the beam delivered to the powder bed may be less than a certain value due to the interruption of the beam path by the upwardly moving smoke

Method used

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  • Method and apparatus for producing a three-dimensionally shaped object, and three dimesionally shaped object
  • Method and apparatus for producing a three-dimensionally shaped object, and three dimesionally shaped object
  • Method and apparatus for producing a three-dimensionally shaped object, and three dimesionally shaped object

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Embodiment Construction

[0045] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0046] (Selective Laser Sintering or Melting)

[0047] First, selective laser sintering or melting, which is the basis of the manufacturing method of the present invention, will be described. figure 2 The structure of the compound optical shaping machine 1 for performing selective laser sintering or melting is shown. The composite optical forming machine 1 mainly includes a powder layer forming unit 2 and a forming workbench 20 (see Figure 4A and 4B ), a beam irradiation unit 3 and a cutting unit 4, wherein the powder layer forming unit 2 is used to form a powder layer by spreading powder such as metal powder or resin powder to a certain thickness, and the forming table 20 is operated by the cylinder in the forming box 29 Vertically movable, the periphery of the cylinder is surrounded by a wall 27, the beam irradiation unit 3 is used to ir...

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Abstract

A method for producing a three-dimensionally shaped object, includes the steps of: (i) forming a solidified layer by irradiating a light beam on a specified portion of a powder layer placed on a shaping table to sinter or melt the specified portion; (ii) forming another solidified layer by placing a new powder layer on the solidified layer thus obtained, and irradiating the light beam on a specified portion of the new powder layer to sinter or melt the specified portion of the new powder layer; and (iii) repeating the step (ii) to produce a three-dimensionally shaped object. When performing the steps (i) to (iii) within a chamber, at least a part of an ambient gas in the chamber is exhausted from the chamber through a gas passage of a shaping tank.

Description

technical field [0001] The present invention relates to a method of manufacturing a three-dimensional shaped object, a device for manufacturing the same and a three-dimensional shaped object. More specifically, the present invention relates to a method of manufacturing a three-dimensionally shaped article having a plurality of solidified layers stacked one above the other by repeating the step of irradiating a beam of light on a specific portion of the powder layer Forming, the invention also relates to a device for manufacturing three-dimensionally shaped objects and the resulting three-dimensionally shaped objects. Background technique [0002] Conventionally, there is a known method of manufacturing a three-dimensionally shaped object by irradiating a beam of light on a powder material, which is generally called "selective laser sintering or melting". With this method, a three-dimensionally shaped article is manufactured by repeating the two steps of (i) irradiating a be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105B22F7/02B29C67/00
CPCB22F3/1055B29C67/0077B22F2003/1056B22F3/003B29C64/153B33Y40/00B33Y10/00Y02P10/25B22F10/28B22F10/32B22F12/70B22F10/77
Inventor 东喜万武南正孝阿部谕不破勋吉田德雄
Owner PANASONIC CORP
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