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Three-dimensional modeling device and three-dimensional modeling method

A three-dimensional modeling and three-dimensional technology, applied in the direction of processing drive devices, processing and manufacturing, manufacturing tools, etc., can solve the problems of irradiating electron beams, difficult and excessively irradiating electron beams, etc.

Active Publication Date: 2022-04-29
IHI CORP
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  • Claims
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Problems solved by technology

Therefore, it is difficult to irradiate electron beams as preset
In addition, in the above-mentioned apparatus and method, it is also possible to generate a portion where the electron beam is not irradiated.
In addition, in the above-mentioned device and method, it is also possible to produce a site that is excessively irradiated with electron beams.
For these reasons, non-uniform heat input occurs in the powder material, that is, heat input uneven
Therefore, in the above-mentioned apparatus and method, the heating of the powder material for proper preparation cannot be carried out.

Method used

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Embodiment Construction

[0020] Hereinafter, the three-dimensional modeling apparatus and the three-dimensional modeling method of the present invention will be described with reference to the drawings. In addition, in the description of the drawings, the same reference numerals are assigned to the same elements, and repeated descriptions are omitted.

[0021] The three-dimensional modeling device of the present invention irradiates powder materials with electron beams to melt the powder materials to shape three-dimensional objects. The three-dimensional modeling device is equipped with an electron beam emitting unit that emits electron beams to melt powder materials in order to shape an object, and pre-conditions the powder materials by irradiating electron beams to the powder materials before modeling the objects. heating. The electron beam emitting unit is configured to move the irradiation position of the electron beam in a helical shape when irradiating the powder material with the electron beam...

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Abstract

The three-dimensional modeling device melts the powder material by irradiating the powder material with an electron beam, thereby modeling a three-dimensional object. The three-dimensional modeling apparatus includes an electron beam emitting unit that emits electron beams to melt powder materials for modeling an object, and preheats the powder materials by irradiating electron beams to the powder materials before modeling the objects. The electron beam emitting unit moves the irradiation position of the electron beam in a spiral shape when irradiating the powder material with the electron beam for preheating.

Description

technical field [0001] The present invention describes a three-dimensional modeling device and a three-dimensional modeling method for modeling a three-dimensional object. Background technique [0002] Conventionally, as a three-dimensional modeling device and a three-dimensional modeling method, for example, a device and a method described in Japanese Patent No. 5108884 are known. In the apparatus and method, the powder material is melted by irradiating the powder material with an electron beam. Afterwards, the three-dimensional object is modeled by solidifying the powdered material. In this apparatus and method, preheating of the powder material is performed by irradiating the powder material with electron beams before the powder material is melted and solidified. Furthermore, in this apparatus and method, in order to suppress the influence of charge accumulation due to electron beam irradiation during the preheating, the scanning paths of the electron beams are set to b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/16B22F3/105B33Y10/00B33Y30/00
CPCB33Y10/00B33Y30/00B33Y50/02B29C64/153B29C64/268B22F2203/11B33Y40/10B23K15/0086B23K15/0033B23K15/002Y02P10/25B22F10/28B22F10/362B22F10/366B22F12/30B29C64/314B29C64/245B29C64/227
Inventor 中山雄一朗林大起
Owner IHI CORP
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