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Method for manufacturing three-dimensional shaped objects

A technology of three-dimensional shape and manufacturing method, which is applied in the direction of processing and manufacturing, additive manufacturing, process efficiency improvement, etc., can solve the problem that the shape of the three-dimensional shape can not be obtained, and achieve the effect of reducing warping deformation

Active Publication Date: 2021-03-12
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, there is a problem that the desired shape cannot be obtained in the three-dimensional shaped object 100

Method used

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  • Method for manufacturing three-dimensional shaped objects
  • Method for manufacturing three-dimensional shaped objects
  • Method for manufacturing three-dimensional shaped objects

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Embodiment Construction

[0028] One embodiment of the present invention will be described in more detail below with reference to the drawings. The form and size of each element in the drawing are for illustration only, and do not reflect the actual form and size.

[0029] In this specification, a "powder layer" means, for example, "a metal powder layer made of metal powder" or a "resin powder layer made of resin powder". In addition, the "predetermined portion of the powder layer" substantially refers to the region of the produced three-dimensional shaped object. Therefore, by irradiating the powder present at the predetermined portion with a beam, the powder is sintered or melt-solidified to form a three-dimensional shaped object. In addition, "cured layer" means "sintered layer" when the powder layer is a metal powder layer, and means "cured layer" when the powder layer is a resin powder layer.

[0030] In addition, the direction of "up and down" described directly or indirectly in this specificat...

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Abstract

In order to provide a method for manufacturing a three-dimensional shaped object with reduced warping deformation, in one embodiment of the present invention, a method for manufacturing a three-dimensional shaped object is provided, which is to repeatedly perform powder layer formation on a modeling disk and irradiation with a beam of light. A method of manufacturing a three-dimensional shaped object formed of a cured layer, wherein at least one pre-cured layer formed earlier than a subsequent cured layer is formed at a relatively higher temperature than the subsequent cured layer.

Description

technical field [0001] The present invention relates to a method for manufacturing a three-dimensional shaped object. More specifically, the present invention relates to a method for producing a three-dimensional shaped object in which a solidified layer is formed by irradiating a powder layer with a beam of light. Background technique [0002] Conventionally, there is known a method of manufacturing a three-dimensional shaped object by irradiating a beam of light to a powder material (generally called "powder sintering lamination method"). This method produces a three-dimensional shaped object based on the following steps (i) and (ii) which are alternately and repeatedly performed to form a powder layer and to form a solidified layer. [0003] (i) A step of irradiating a beam to a predetermined portion of the powder layer, sintering or melting and solidifying the powder at the predetermined portion to form a solidified layer. [0004] (ii) A step of forming a new powder l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/16B22F3/105B22F3/24B29C33/38B29C64/153B33Y10/00B33Y40/20
CPCB22F3/105B22F3/16B29C33/38B29C67/00B33Y10/00Y02P10/25B22F10/28B22F12/49B22F12/41B22F10/368B22F12/67B22F10/50B33Y30/00B22F2998/10B29C64/153B22F3/1017
Inventor 阿部谕不破勲森干夫
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD