Method and device for producing three-dimensional objects

摘要

The invention concerns a method for producing three-dimensional objects (3) layer by layer using a powdery material (5) which can be solidified by irradiating it with a high-energy beam.

主权项

1. A method for producing three-dimensional objects, layer by layer, using a powder material, the method comprising the steps of:
directing a high-energy beam at a bed of powder material in a vacuum chamber of a device configured to produce a three-dimensional object and generating charged powder where the beam irradiates the powder; solidifying a powder material by irradiating the powder material with the high-energy beam; and introducing ions from an ion source into the vacuum chamber of the device configured to produce a three-dimensional object and reducing the amount of charged powder by neutralizing charged powder with the ions.