Three-dimensional shaping device and three-dimensional shaping method
AssigneeIHI Corporation
InventorsYuichiro Nakayama, Daiki Hayashi
Life of this patent
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Abstract
A three-dimensional shaping device shapes a three-dimensional article by irradiating a powder material with an electron beam and melting the powder material. The three-dimensional shaping device includes an electron beam emitting unit emitting the electron beam, melting the powder material in order to shape the article, and performing preliminary heating of the powder material by irradiating the powder material with the electron beam before the article is shaped. The electron beam emitting unit moves an irradiation position of the electron beam in a spiral pattern when the powder material is irradiated with the electron beam for preliminary heating.
Claims4
A three-dimensional shaping device shaping a three-dimensional article by irradiating a powder material with an electron beam and melting the powder material, the three-dimensional shaping device comprising:
- an electron beam emitting unit emitting the electron beam, melting the powder material in order to shape the article, and performing preliminary heating of the powder material by irradiating the powder material with the electron beam before the article is shaped;
- and
- a circular-shaped plate for placing the powder material and supporting the article to be shaped, wherein
- the electron beam emitting unit moves an irradiation position of the electron beam from a center of a circular irradiation region, which is located on the center side in the circular-shaped plate, toward an outer edge of the circular irradiation region, which is located on the outer side in the circular-shaped plate, in a spiral pattern and then return to the center of the circular irradiation region again, when the powder material is irradiated with the electron beam for preliminary heating,
- the center of the circular irradiation region is located on the center side in the circular-shaped plate, and
- the outer edge of the circular irradiation region is located on the outer side in the circular-shaped plate.
Dependencies are inferred from the claim text.