Method of manufacturing structural object

Patent metadata

Field	Value
Publication number	US-9511545-B2
Application number	US-201214368326-A
Country	US
Kind code	B2
Filing date	Nov 9, 2012
Priority date	Jan 5, 2012
Publication date	Dec 6, 2016
Grant date	Dec 6, 2016

Abstract

There is provided a method of manufacturing a structural object, including using rapid prototyping technology, forming a structure body from a powder material whose main component is a water-soluble compound. The formed structure body is impregnated with an adhesive that provides adhesive function upon reaction with moisture contained in the structure body.

First claim

The invention claimed is:

1. A method of manufacturing a structural object, the method comprising:
using rapid prototyping technology, forming a structure body from a powder material whose main component is a water-soluble compound; and
impregnating, at an impregnation rate, the formed structure body with an adhesive that provides adhesive function upon reaction with moisture contained in the structure body,
wherein the impregnation rate of the adhesive to the structure body is controlled in such a manner that the structural object to be obtained by the impregnation with the adhesive has an inner part in which the adhesive is not contained and a surface part in which the adhesive is contained.

2. The method according to claim 1 , further comprising:
drying the structure body before the structure body is impregnated with the adhesive.

3. The method according to claim 2 , wherein the drying of the structure body includes heating the structure body.

4. The method according to claim 1 , wherein
an intensity of the surface part of the structural object to be obtained by the impregnation with the adhesive is 10 times or more and 250 times or less relative to an intensity of the inner part.

5. The method according to claim 1 , further comprising:
forming a hole penetrating through from the surface part to the inner part of the structural object to be obtained by the impregnation; and
forming a hollow structure at least at a part of the inner part by injecting a solvent for the powder material and eluting the powder material in the formed hole.

6. The method according to claim 1 , wherein a technology of modeling with powders out of the rapid prototyping technology is used.

7. The method according to claim 1 , wherein the main component of the powder material is sodium chloride.

8. The method according to claim 1 , further comprising:
drying the structure body before the structure body is impregnated with the adhesive, and
wherein the impregnation rate of the adhesive to the structure body is controlled by controlling a degree of drying of the structure body during the drying of the structure body.

9. The method according to claim 1 , wherein
the structure body is a three-dimensional body, and
the impregnation of the three-dimensional body is performed at the impregnation rate such that each face of the three-dimensional body contains the adhesive.

Assignees

• Sony Corp

Inventors

• Matsui Takeshi
• Kihara Nobuhiro
• Kuzusako Junichi
• Minakawa Tatsuya
• Niizaka Kazuo

Classifications

• B29K2105/0097

  Glues or adhesives, e.g. hot melts or thermofusible adhesives · CPC title

• B33Y10/00

  Processes of additive manufacturing · CPC title

• B33Y80/00

  Products made by additive manufacturing · CPC title

• B29C70/682

  Preformed parts characterised by their structure, e.g. form · CPC title

• B29K2995/0062

  water-soluble · CPC title