ADDITIVE MANUFACTURING APPARATUS AND METHODS

摘要

This invention concerns an additive manufacturing apparatus comprising a chamber (101), a build platform (102) movable in the chamber such that layers of flowable material can be successively formed across the build platform (102), a unit (105) for generating an energy beam for solidifying the flowable material, a scanning unit (106) for directing the energy beam onto selected areas of each layer to solidify the material in the selected areas and a getter (155) for absorbing oxygen, nitrogen and/or hydrogen from atmosphere in the chamber (101).