Three-dimensional shaped article production method

US2017217097A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2017217097-A1
Application numberUS-201715414214-A
CountryUS
Kind codeA1
Filing dateJan 24, 2017
Priority dateJan 29, 2016
Publication dateAug 3, 2017
Grant date

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A three-dimensional shaped article production method for producing a three-dimensional shaped article by stacking layers to form a stacked body includes a constituent layer formation step of forming a constituent layer which corresponds to a constituent region of the three-dimensional shaped article, a support layer formation step of forming a support layer which is in contact with the constituent layer and supports the constituent layer, and a sintering step of sintering the constituent layer, wherein the support layer is configured such that as compared with the volume decrement accompanying the sintering step of a space surrounded by the constituent layer from at least two directions, the volume decrement accompanying the sintering step of the support layer which supports the constituent layer in the space is larger.

First claim

Opening claim text (preview).

What is claimed is: 1 . A three-dimensional shaped article production method for producing a three-dimensional shaped article by stacking layers to form a stacked body, comprising: a constituent layer formation step of forming a constituent layer which corresponds to a constituent region of the three-dimensional shaped article; a support layer formation step of forming a support layer which is in contact with the constituent layer and supports the constituent layer; and a sintering step of sintering the constituent layer, wherein the support layer is configured such that as compared with the volume decrement accompanying the sintering step of a space surrounded by the constituent layer from at least two directions, the volume decrement accompanying the sintering step of the support layer which supports the constituent layer in the space is larger. 2 . The three-dimensional shaped article production method according to claim 1 , wherein at least a portion of the support layer which supports the constituent layer in the space is structurally changed accompanying the sintering step. 3 . The three-dimensional shaped article production method according to claim 1 , wherein the support layer is configured such that at least a portion which supports the constituent layer in the space includes a region whose volume change accompanying the sintering step is relatively large and a region whose volume change accompanying the sintering step is relatively small. 4 . The three-dimensional shaped article production method according to claim 1 , wherein at least a portion of the support layer which supports the constituent layer in the space is powdered accompanying the sintering step. 5 . The three-dimensional shaped article production method according to claim 1 , wherein at least a portion of the support layer which supports the constituent layer in the space is volatilized accompanying the sintering step.

Assignees

Inventors

Classifications

  • Layered products essentially comprising ceramics, e.g. refractory products · CPC title

  • using laser · CPC title

  • Alumina or aluminates · CPC title

  • Density · CPC title

  • Products made by additive manufacturing · CPC title

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What does patent US2017217097A1 cover?
A three-dimensional shaped article production method for producing a three-dimensional shaped article by stacking layers to form a stacked body includes a constituent layer formation step of forming a constituent layer which corresponds to a constituent region of the three-dimensional shaped article, a support layer formation step of forming a support layer which is in contact with the constitu…
Who is the assignee on this patent?
Seiko Epson Corp
What technology area does this patent fall under?
Primary CPC classification B22F7/006. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Thu Aug 03 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).