Device for manufacturing layered object and method of manufacturing layered object

Patent metadata

Field	Value
Publication number	US-10259076-B2
Application number	US-201415023276-A
Country	US
Kind code	B2
Filing date	Sep 17, 2014
Priority date	Mar 31, 2014
Publication date	Apr 16, 2019
Grant date	Apr 16, 2019

Abstract

A device for manufacturing a layered object includes a container, a vibration unit, and an energy beam irradiation unit. The container includes a stage, a wall surrounding the stage, and a lid. The vibration unit vibrates raw material powder to planarize a face of the raw material powder supplied into the container. The energy beam irradiation unit irradiates part of the raw material powder with an energy beam to form part of the layered object. The lid presses the raw material powder when the vibration unit vibrates the raw material powder. A space is formed between the wall and the lid in the container when the lid is in contact with the raw material powder. The raw material powder is allowed to flow into the space.

First claim

The invention claimed is:

1. A device for manufacturing a layered object, the device comprising:
a container including a stage and a wall surrounding the stage;
a vibration unit that vibrates raw material powder to planarize a face of the raw material powder supplied into the container; and
an energy beam irradiation unit that irradiates part of the raw material powder with an energy beam to form part of the layered object, wherein
the stage further includes an upper face,
the wall includes a first side wall, and a second side wall separate from the first side wall in a first direction parallel to the upper face,
the upper face is arranged between the first side wall and the second side wall, and
a distance between the first side wall and the second side wall is changeable:
wherein
the stage further includes a lower face, a first side face connected with part of the upper face and part of the lower face, and a second side face separate from the first side face in the first direction and connected with another part of the upper face and another part of the lower face,
a length of the upper face in the first direction is smaller than a length of the lower face in the first direction,
the first side face is tilted relative to the upper face,
the second side face is tilted relative to the upper face,
the first side wall moves while being in contact with the first side face, and
the second side wall moves while being in contact with the second side face.

2. The device for manufacturing a layered object according to claim 1 , wherein
the container further includes a lid, and
the lid is configured to press the raw material powder when the vibration unit vibrates the raw material powder.

3. The device for manufacturing a layered object according to claim 2 , wherein the lid is placed at a position not overlapping the raw material powder at the irradiation with the energy beam.

4. The device for manufacturing a layered object according to claim 2 , wherein the vibration unit vibrates the lid.

5. The device for manufacturing a layered object according to claim 1 , wherein the vibration unit is configured to vibrate the stage or the wall.

Assignees

• Toshiba Kk

Inventors

• Suzuki Yusuke
• Nakano Hideshi
• Ohno Hiroshi
• Pan Shanying
• Kobayashi Kotaro
• Tanaka Masayuki
• Machida Morihiro
• Iwakawa Kazunari
• Watase Aya

Classifications

• B29C64/153

  using layers of powder being selectively joined, e.g. by selective laser sintering or melting · CPC title

• B22F2999/00

  Aspects linked to processes or compositions used in powder metallurgy · CPC title

• B23K26/342 Primary

  Build-up welding · CPC title

• B29C64/245

  Platforms or substrates (support structures intended to be sacrificed after manufacture B29C64/40) · CPC title

• B33Y30/00

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