Machine and Method for Additive Manufacturing

摘要

An additive manufacturing machine is offered which creates a three-dimensional (3D) object by melting a powdered material with a beam such an electron beam and which shapes the surface of the 3D object at improved accuracy. The 3D object is obtained by tightly spreading the powdered material (31) on a support stage (43) and illuminating the powdered material (31) with a beam (B) to melt and bond together grains of the powdered material. The beam generated by a beam generator (11) is a pulsed beam and used to melt or sublimate the powdered material.

主权项

1. An additive manufacturing machine comprising:
a support stage on which a powdered material is spread tightly; a beam generator producing a beam; a lens for focusing the beam produced by the beam generator onto the powdered material spread on the support stage; and a controller for causing the beam generator to selectively produce a continuous beam or a pulsed beam as the beam produced by the beam generator.