Three-dimensional modeling device and three-dimensional modeling method

Abstract

The three-dimensional modeling device supplies and spreads the powder material to the irradiation area of ​​the electron beam, irradiates the electron beam to the powder material to melt the powder material, and shapes a three-dimensional object. The three-dimensional modeling device determines whether or not the powder material is scattered during the modeling of the object. When it is determined that the powder material is scattered, the irradiation area (R) is heated by the heater before supplying new powder material to the irradiation area (R). After feeding new powder material to the heated irradiated area, the modeling of the object starts again.

Description

technical field [0001] The invention relates to a three-dimensional modeling device and a three-dimensional modeling method for modeling a three-dimensional object. Background technique [0002] Japanese Patent No. 6154544 discloses a three-dimensional modeling device and a three-dimensional modeling method. The three-dimensional modeling apparatus and three-dimensional modeling method described in Japanese Patent No. 6154544 irradiate a powder material with electron beams to melt the powder material and then solidify the melted powder material. In this apparatus and method, in order to solidify the powder material after melting, the powder material is preheated by a heater provided on the side or top of the molding box before irradiating the electron beam. As a result, since there is no need for preheating by electron beam irradiation, the modeling speed of the object can be increased. [0003] Patent Document 1: Japanese Patent No. 6154544 [0004] In the above-mentione...

AI Technical Summary

Problems solved by technology

However, if electron beam irradiation is performed under the same heating conditions, the powder material may be scattered again

Therefore, the modeling of the object cannot be carried out smoothly.

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