Ihi Corporation

Riku Shimizu

Yuichiro Nakayama

A three-dimensional manufacturing apparatus includes a rotary drive unit that rotates a table around a rotation axis, a region setting unit that sets a plurality of divided regions obtained by dividing an irradiation region, a beam source that irradiates a powder material with an electron beam for each of the divided regions, and a rotation speed adjusting unit that adjusts a rotation speed of the table. An area per unit central angle of a first divided region is smaller than an area per unit central angle of a second divided region. The rotation speed adjusting unit performs adjustment so that a rotation speed of the table during a period of irradiating the first divided region with the energy beam becomes faster than a rotation speed of the table during a period of irradiating the second divided region with the energy beam.

Three-dimensional manufacturing apparatus

An additive manufacturing device is provided with a beam irradiation unit irradiating a conductive powder disposed in a layered shape with a beam, a nondestructive inspection unit detecting a flaw in a surface layer of an additively manufactured article formed of the hardened conductive powder, and an energy control unit controlling energy of the beam. The energy control unit increases energy of a beam when a repairing region set in accordance with results of flaw detection by the nondestructive inspection unit is irradiated with the beam.

Growing community of inventors

Tokyo, Japan

Riku Shimizu