Three-dimensional laminating and fabricating system, three-dimensional laminating and fabricating method, laminating and fabricating control apparatus and method of controlling the same, and control program

Patent metadata

Field	Value
Publication number	US-10926469-B2
Application number	US-201615125078-A
Country	US
Kind code	B2
Filing date	May 31, 2016
Priority date	May 31, 2016
Publication date	Feb 23, 2021
Grant date	Feb 23, 2021

Abstract

This invention provides a three-dimensional laminating and fabricating system that can remove the influence of a gas flow between the irradiation positions by a plurality of irradiators. The three-dimensional laminating and fabricating system includes a laminating and fabricating unit that includes a plurality of irradiators configured to irradiate a laminating material, and a remover configured to generate a flow path on a laminated surface and remove dust generated by the irradiated laminating material, to cause the plurality of irradiators to perform irradiation to fabricate each layer of a laminated and fabricated object made of the laminating material as an aggregate of cell regions, and a laminating and fabricating controller that controls selection of each of the cell regions to be irradiated by each of the plurality of irradiators so as to prevent the dust generated in each of the cell regions on an upstream side of the flow path from influencing fabricating in each of the cell regions on a downstream side of the flow path.

First claim

The invention claimed is:

1. A laminating and fabricating control apparatus comprising:
a data acquirer configured to acquire data of a laminated and fabricated object as a target of laminating and fabricating; and
a laminating and fabricating controller that controls a laminating and fabricating unit including a plurality of irradiators configured to irradiate a laminating material, and a remover configured to generate a flow path on a laminated surface, and removing dust generated by the irradiated laminating material, to cause said plurality of irradiators to perform irradiation to fabricate each layer of the laminated and fabricated object made of the laminating material as an aggregate of cell regions, said laminating and fabricating controller controlling selection of each of die cell regions to be irradiated by each of said plurality of irradiators based on the data of the laminated and fabricated object so as to prevent the dust generated in each of the cell regions on an upstream side of the flow path from influencing fabricating in each of the cell regions on a downstream side of the flow path,
wherein said laminating and fabricating controller controls selection of the cell regions such that, when a first irradiator out of said plurality of irradiators irradiates a first cell region, a second irradiator irradiates a second cell region outside an influence range on the upstream side influencing the first cell region, or a third irradiator out of said plurality of irradiators irradiates a third cell region outside the influence range on the downstream side influenced by the irradiation to the first cell region.

2. A laminating and fabricating control apparatus comprising:
a data acquirer configured to acquire data of a laminated and fabricated object as a target of laminating and fabricating; and
a laminating and fabricating controller that controls a laminating and fabricating unit including a plurality of irradiators configured to irradiate a laminating material, and a remover configured to generate a flow path on a laminated surface, and removing dust generated by the irradiated laminating material, to cause said plurality of irradiators to perform irradiation to fabricate each layer of the laminated and fabricated object made of the laminating material as an aggregate of cell regions, said laminating and fabricating controller controlling selection of each of the cell regions to be irradiated by each of said plurality of irradiators based on the data of the laminated and fabricated object so as to prevent the dust generated in each of the cell regions on an upstream side of the flow path from influencing fabricating in each of the cell regions on a downstream side of the flow path,
wherein said laminating and fabricating controller controls selection of the cell regions such that, when a first irradiator out of said plurality of, irradiators irradiates a first cell region, a second irradiator out of said plurality of irradiators irradiates a second cell region outside an influence range on the upstream side influencing the first cell region, and a third irradiator out of said plurality of irradiators irradiates a third cell region outside the influence range on the downstream side influenced b the irradiation to the first: cell region.

3. A laminating and fabricating control apparatus comprising:
a data acquirer configured to acquire data of a laminated and fabricated object as a target of laminating and fabricating; and
a laminating and fabricating controller that controls a laminating and fabricating unit including a plurality of irradiators configured to irradiate a laminating material, and a remover configured to generate a flow path on a laminated surface, and removing dust generated by the irradiated laminating material, to cause said plurality of irradiators to perform irradiation to fabricate each layer of the laminated and fabricated object made of the laminating material as an aggregate of cell regions, said laminating and fabricating controller controlling selection of each of the cell regions to be irradiated by each of said plurality of irradiators based on the data of the laminated and fabricated object so as to prevent the dust generated in each of the cell regions on an upstream side of the flow path from influencing fabricating in each of the cell regions on a downstream side of the flow path,
wherein said laminating and fabricating controller controls selection of the cell regions such that, when a first irradiator out of said plurality of irradiators irradiates a first cell region, a second irradiator irradiates a second cell region outside an influence range on the upstream side influencing the first cell region, and
wherein the influence range is set in consideration of at least an irradiation intensity and a scanning speed of each irradiator, a flow velocity of the flow path generated by said remover, and a size of each of the cell regions.

4. A method of controlling the laminating and fabricating control apparatus according to claim 1 , comprising:
acquiring data of a laminated and fabricated object as a target of laminating and fabricating; and
controlling the laminating and fabricating unit that includes the plurality of irradiators configured to irradiate a laminating material, and the remover configured to generate a flow path on a laminated surface and remove dust generated by the irradiated laminating material, to cause the plurality of irradiators to perform irradiation to fabricate each layer of the laminated and fabricated object made of the laminating material as an aggregate of cell regions, and further controlling selection of a cell region to be irradiated by each of the plurality of irradiators based on the data of the laminated and fabricated object so as to prevent the dust generated in each of the cell regions on an upstream side of the flow path from influencing fabricating in each of the cell regions on a downstream side of the flow path.

5. A non-transitory computer-readable medium storing a control program of the laminating and fabricating control apparatus according to claim 1 , which causes a computer to execute a method, comprising:
acquiring data of a laminated and fabricated object as a target of laminating and fabricating; and
controlling the laminating and fabricating unit that includes the plurality of irradiators configured to irradiate a laminating material, and the remover configured to generate a flow path on a laminated surface and remove dust generated by the irradiated laminating material, to cause the plurality of irradiators to perform irradiation to fabricate each layer of the laminated and fabricated object made of the laminating material as an aggregate of cell regions, and further controlling selection of a cell region to be irradiated by each of the plurality of irradiators based on the data of the laminated and fabricated object so as to prevent the dust generated in each of the cell regions on an upstream side of the flow path from influencing fabricating in each of the cell regions on a downstream side of the flow path.

6. The laminating and fabricating control apparatus according to claim 1 , wherein said laminating and fabricating controller controls selection of the cell regions in accordance with information of an irradiation procedure designed in advance.

7. The laminating and fabricating control apparatus according to claim 2 , wherein said laminating and fabricating controller controls selection of the cell regions in accordance with information of an irradiation procedure designed in advance.

8. The laminating and fabricating control apparatus according to claim 3 , wherein said laminating and fabricating controller controls selection of the cell regions in accordance wit

Assignees

• Tech Res Association Future Additive Manufacturing

Inventors

• Amaya Koichi
• Midorikawa Tetsushi
• KAWAJI Masaaki

Classifications

• B22F10/20

  Direct sintering or melting · CPC title

• B22F12/70

  Gas flow means · CPC title

• B22F12/45

  Two or more · CPC title

• B22F10/80

  Data acquisition or data processing · CPC title

• B22F10/36

  of energy beam parameters · CPC title