Irradiation apparatus, metal modeling apparatus, metal modeling system, irradiation method, and metal modeling object manufacturing method

摘要

In order to facilitate raising the temperature of a metal powder to a temperature at which sintering or melting of a powder bed (PB) occurs, an irradiation device (13) comprises a galvano scanner (13a) for irradiating at least a portion of a powder bed (PB) with laser light, and a wavelength conversion element (WCE) provided in the laser light path. The wavelength conversion element (WCE) converts laser light that is input to the wavelength conversion element (WCE) into laser light that includes harmonic light (HL) of a shorter wavelength than the laser light.