Additive manufacturing apparatus and method for manufacturing three-dimensionally shaped object
AssigneeCanon Kabushiki Kaisha
InventorsKoji Kitani, Naoki Takizawa
Life of this patent
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Abstract
An additive manufacturing apparatus includes a powder layer forming portion, an energy beam source, and a contact detection sensor including a plate-like probe. The powder layer forming portion is configured to form a powder layer in a predetermined region. The energy beam source is configured to radiate an energy beam to the powder layer formed by the powder layer forming portion to fuse or sinter the powder layer so that a solidified layer is formed. Presence or absence of a projection portion on a surface of the solidified layer is detected by using the contact detection sensor.
Claims19
An additive manufacturing apparatus comprising:
- a powder layer forming portion configured to form a powder layer in a predetermined region;
- an energy beam source configured to radiate an energy beam to the powder layer formed by the powder layer forming portion to fuse or sinter the powder layer so that a solidified layer is formed;
- and
- a contact detection sensor comprising a plate-like probe,
- wherein presence or absence of a projection portion on a surface of the solidified layer is detected by using the contact detection sensor.
A method for manufacturing a three-dimensionally shaped object, the method comprising:
- a powder layer forming step of forming and flattening a powder layer of a predetermined thickness in a predetermined region by using a powder layer forming portion;
- a solidification step of forming a solidified layer by radiating an energy beam to the powder layer flattened in the powder layer forming step;
- and
- a detection step of detecting, by using a contact detection sensor comprising a plate-like probe, whether or not a projection portion having a height that interferes with the powder layer forming portion in a case where the powder layer forming portion forms a powder layer of the predetermined thickness on the solidified layer is present on the solidified layer.
Dependencies are inferred from the claim text.