AM apparatus
AssigneeEbara Corporation
InventorHiroyuki Shinozaki
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Abstract
One of objects of the present application is to provide a technique for reducing a fabrication time while preventing or reducing the occurrence of fume and spatter in an AM apparatus. According to one aspect, an AM apparatus configured to manufacture a fabricated object is provided. This AM apparatus includes a beam source configured to irradiate a material of the fabricated object with a beam, an adjustment device configured to adjust an intensity of the beam, a beam adjustment mechanism configured to adjust a beam size on the material, and a fabrication recipe determination device. The fabrication recipe determination device is configured to determine the intensity of the beam and the beam size on the material based on a property of the material of the fabricated object.
Claims5
An AM apparatus for manufacturing a fabricated object, the AM apparatus comprising:
- a beam source configured to irradiate a material of the fabricated object with a beam;
- an adjustment device configured to adjust an intensity of the beam;
- a beam adjustment mechanism configured to adjust a beam size on the material;
- a fabrication recipe determination device, and
- a control device;
- wherein the fabrication recipe determination device is configured to determine the intensity of the beam and the beam size on the material based on a property of the material of the fabricated object,
- wherein the fabrication recipe determination device is configured to determine the intensity of the beam and the beam size on the material in such a manner that the material of the fabricated object reaches a melting temperature with an irradiation time of the beam lasting for approximately 2 τc to approximately 4 τc, wherein τc represents a time constant of thermal conduction of the material of the fabricated object,
- a base plate for supporting a material of the fabricated object;
- a material supply mechanism for supplying the material of the fabricated object on the base plate;
- wherein the material of the fabricated object is powder comprising particles, and the control device is configured to control the material supply mechanism to supply only one layer of particles of the powder,
- wherein the material supply mechanism comprises a storage container and a movement mechanism for moving the storage container, the storage container comprising an opening for discharging the powder and a valve for controlling the opening/closing of the opening.
An AM apparatus for manufacturing a fabricated object, the AM apparatus comprising:
- a beam source configured to irradiate a material of the fabricated object with a beam;
- an adjustment device configured to adjust an intensity of the beam;
- a beam adjustment mechanism configured to adjust a beam size on the material;
- and
- a fabrication recipe determination device,
- wherein the fabrication recipe determination device is configured to determine the intensity of the beam and the beam size on the material based on a property of the material of the fabricated object,
- wherein the fabrication recipe determination device is configured to determine the intensity of the beam and the beam size on the material in such a manner that the material of the fabricated object reaches a melting temperature with an irradiation time of the beam lasting for approximately 2 τc to approximately 4 τc, wherein τc represents a time constant of thermal conduction of the material of the fabricated object,
- wherein the material of the fabricated object is powder, and
- wherein the AM apparatus further includes a classifier configured to classify the powder into a plurality of classes corresponding to different particle diameters,
- wherein the fabrication recipe determination device is configured to determine the intensity of the beam and the beam size on the material according to a particle diameter of the powder,
- wherein τc=(ΔA×δ×ρ×c)×(δ/(λ×ΔA))=ρ×c×δ[2]2/λ
- ΔA:
- area of region of interest
- δ:
- thickness of the material
- ρ:
- density of the material
- c:
- specific heat of the material
- λ:
- thermal conductivity of the material.
Dependencies are inferred from the claim text.