Powder bed fusion apparatus
AssigneeAspect Inc.
InventorSeiji HAYANO
Life of this patent
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Abstract
A powder bed fusion apparatus has an energy beam emitting section for outputting an energy beam, a thin layer forming section for forming a thin layer of a powder material, preliminary heating means for pre-heating the thin layer of the powder material, and control means for controlling modeling, wherein the control means performs forming the thin layer of the powder material, pre-heating the thin layer of the powder material, and modeling based on slice data, in which irradiation of the energy beam is started from the central region of the thin layer, and sequentially moved to a peripheral region of the thin layer.
Claims9
A powder bed fusion apparatus comprising:
- an energy beam emitting section for outputting an energy beam;
- a thin layer forming section for forming a thin layer of a powder material;
- preliminary heating means for pre-heating the thin layer of the powder material;
- and
- control means for controlling modeling, wherein
- the control means performs
- forming the thin layer of the powder material,
- pre-heating the thin layer of the powder material, and
- modeling based on slice data, in which irradiation of the energy beam is started from the central region of the thin layer, and sequentially moved to a peripheral region of the thin layer.
A powder bed fusion apparatus comprising:
- an energy beam emitting section for outputting an energy beam;
- a thin layer forming section for forming a thin layer of a powder material which is irradiated with the energy beam;
- preliminary heating means for pre-heating the thin layer of the powder material;
- temperature measuring means for measuring temperature distribution at a surface of the thin layer of the powder material;
- and
- control means for controlling modeling, wherein
- the control means performs:
- forming the thin layer of the powder material;
- pre-heating the thin layer of the powder material;
- and
- subsequently repeating
- measuring temperature distribution at the surface of the thin layer of the powder material by the temperature measuring means,
- identifying a partial region of the thin layer of the powder material which is included within a temperature range lower than the melting temperature of the powder material and predetermined temperature or higher based on the measured temperature distribution, and
- irradiating the partial region with the energy beam to melt and solidify the region based on slice data.
Dependencies are inferred from the claim text.