US 2022/0023950 A1Published application

Additive manufacturing device

AssigneeJtekt Corporation

InventorsTakaya NAGAHAMA, Makoto TANO, Koichi SHIIBA

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Abstract

An additive manufacturing device that forms a shaped object on a base by using one material of a powdery material and a linear material includes an additive material supply unit, a light irradiation unit, and a control unit that controls supply of the one material, irradiation with a light beam, and relative movement of the light beam. The light irradiation unit includes a central light beam irradiation part and an outer-side light beam irradiation part. The control unit separately controls an output condition of the central light beam irradiation part and an output condition of the outer-side light beam irradiation part, and the control unit increases a peak in a distribution shape of power density of the central light beam to be larger than a peak in a distribution shape of power density of the outer-side light beam to form the shaped object.

Claims18

Dependent claims

An additive manufacturing device configured to form a shaped object on a base by using one material of a powdery material and a linear material, the additive manufacturing device comprising:

an additive material supply unit configured to supply the one material to the base;
a light irradiation unit configured to irradiate a supply portion on the base with a light beam, the supply portion being a portion to which the one material is supplied;
and
a control unit configured to control a supply of the one material by the additive material supply unit, an irradiation with a light beam by the light irradiation unit, and a relative movement of the light beam to the base,
wherein the light irradiation unit includes a central light beam irradiation part that irradiates a central portion of the supply portion of the one material with a central light beam and an outer-side light beam irradiation part that irradiates an outer side of the central light beam with an outer-side light beam, and the light beam includes the central light beam and the outer-side light beam,
wherein the control unit is configured to separately control an output condition of the central light beam irradiation part and an output condition of the outer-side light beam irradiation part,
wherein the central light beam has a power density related to the output condition of the central light beam irradiation part, and the outer-side light beam has a power density related to the output condition of the outer-side light beam irradiation part, and
wherein the control unit is configured to adjust a peak in a distribution shape of the power density of the central light beam and a peak in a distribution shape of the power density of the outer-side light beam to form the shaped object.

5 more elements

An additive manufacturing device configured to form a shaped object on a base by using a plurality of kinds of powdery materials, the additive manufacturing device comprising:

an additive material supply unit including a component ratio adjustment unit that adjusts a component ratio of the plurality of kinds of powdery materials, and configured to supply an adjusted powdery material to the base in an injection manner, the adjusted powdery material being a material to which the component ratio adjustment unit has adjusted the component ratio;
a light irradiation unit configured to irradiate a supply portion on the base with a light beam, the supply portion being a portion to which the adjusted powdery material is supplied;
and
a control unit configured to control a supply of the adjusted powdery material by the additive material supply unit, an irradiation with a light beam by the light irradiation unit, and a relative movement of the light beam to the base,
wherein the light irradiation unit includes a central light beam irradiation part that irradiates a central portion of the supply portion of the adjusted powdery material with a central light beam and an outer-side light beam irradiation part that irradiates an outer side of the central light beam with an outer-side light beam, and the light beam includes the central light beam and the outer-side light beam.

2 more elements

Dependencies are inferred from the claim text.