Nozzle of layered object manufacturing apparatus, and layered object manufacturing apparatus

Patent metadata

Field	Value
Publication number	US-10279430-B2
Application number	US-201415108997-A
Country	US
Kind code	B2
Filing date	Sep 17, 2014
Priority date	Mar 18, 2014
Publication date	May 7, 2019
Grant date	May 7, 2019

Abstract

A nozzle of a layered object manufacturing apparatus according to embodiments includes a gas supply part and an exhaust part. The gas supply part includes a gas supply port through which gas is supplied. The exhaust part includes an exhaust port through which the gas is exhausted. The gas supply port and the exhaust port face each other and are spaced apart from each other.

First claim

The invention claimed is:

1. A nozzle of a layered object manufacturing apparatus, the nozzle comprising:
an emitting part including an opening from which an energy ray is emitted;
a gas supply part including a gas supply port through which gas is supplied; and
an exhaust part including an exhaust port through which the gas is exhausted, wherein
powder of a material is supplied together with gas from the gas supply part,
the gas supply port and the exhaust port face each other and are spaced apart from each other, and an optical path of the energy ray is positioned between the gas supply port and the exhaust port,
the emitting part emits the energy ray toward a flow including the material from the gas supply port to the exhaust port, and
a plurality of pairs of the gas supply port and the exhaust port are provided, the gas supply port and the exhaust port facing each other and being spaced apart from each other.

2. The nozzle according to claim 1 , comprising:
a material supply part including a material supply port through which powder of a material is supplied, in addition to the gas supply part.

3. The nozzle according to claim 1 , wherein at least one of the gas supply part and the exhaust part includes a wall that covers the energy ray along an optical path of the energy ray emitted from the emitting part.

4. The nozzle according to claim 1 , wherein a direction of an optical path of the energy ray emitted from the emitting part is perpendicular to a direction in which the gas supply port and the exhaust port face each other.

5. The nozzle according to claim 1 , wherein powder of different materials is supplied to the each pair of the gas supply port and the exhaust port, the gas supply port and the exhaust port facing each other and being spaced apart from each other.

6. A layered object manufacturing apparatus comprising:
a light source that emits an energy ray;
the nozzle according to claim 1 ;
a supply part including a path through which a material is supplied to the nozzle; and
a moving mechanism that moves an object and the nozzle relatively to each other by moving at least one of the nozzle and a stage on which the object is mounted.

7. A nozzle of a layered object manufacturing apparatus, the nozzle comprising:
an emitting part including an opening from which an enemy ray is emitted
a gas supply part including a gas supply port through which gas is supplied; and
an exhaust part including an exhaust port through which the gas is exhausted, wherein
powder of a material is supplied together with gas from the gas supply part,
the gas supply port and the exhaust port face each other and are spaced apart from each other, and an optical path of the energy ray is positioned between the gas supply port and the exhaust port,
the emitting part emits the energy ray toward a flow including the material from the gas supply port to the exhaust port,
both the gas supply port and the exhaust port are provided in a slit shape, and
an optical path of the energy ray emitted from the emitting part is positioned between a center part of the gas supply port and a center part of the exhaust port.

8. The nozzle according to claim 7 , comprising:
a material supply part including a material supply port through which powder of a material is supplied, in addition to the gas supply part.

9. The nozzle according to claim 7 , wherein
at least one of the gas supply part and the exhaust part includes a wall that covers the energy ray along an optical path of the energy ray emitted from the emitting part.

10. The nozzle according to claim 7 , wherein
a direction of an optical path of the energy ray emitted from the emitting part is perpendicular to a direction in which the gas supply port and the exhaust port face each other.

11. A layered object manufacturing apparatus comprising:
a light source that emits an energy ray;
the nozzle according to claim 7 ;
a supply part including a path through which a material is supplied to the nozzle; and
a moving mechanism that moves an object and the nozzle relatively to each other by moving at least one of the nozzle and a stage on which the object is mounted.

12. A nozzle of a layered object manufacturing apparatus, the nozzle comprising:
an emitting part including an opening from which an energy ray is emitted;
a gas supply part including a gas supply port through which gas is supplied; and
an exhaust part including an exhaust port through which the gas is exhausted, wherein
powder of a material is supplied together with gas from the gas supply part,
the gas supply port and the exhaust port face each other and are spaced apart from each other, and an optical path of the energy ray is positioned between the gas supply port and the exhaust port,
the emitting part emits the energy ray toward a flow including the material from the gas supply port to the exhaust port,
a plurality of pairs of the gas supply port and the exhaust port are provided, the gas supply port and the exhaust port facing each other and being spaced apart from each other,
both the gas supply port and the exhaust port are provided in a slit shape, and
an optical path of the energy ray emitted from the emitting part is positioned between a center part of the gas supply port and a center part of the exhaust port.

13. The nozzle according to claim 12 , wherein
powder of different materials is supplied to the each pair of the gas supply port and the exhaust port, the gas supply port and the exhaust port facing each other and being spaced apart from each other.

Assignees

• Toshiba Kk

Inventors

• Ohno Hiroshi
• Nakano Hideshi
• Terada Takahiro
• Tanaka Masayuki

Classifications

• B33Y30/00

  Apparatus for additive manufacturing; Details thereof or accessories therefor · CPC title

• B23K26/144

  the fluid stream containing particles, e.g. powder · CPC title

• B29C64/35

  Cleaning · CPC title

• B23K26/342

  Build-up welding · CPC title

• B23K26/142

  for the removal of by-products · CPC title