ADDITIVE MANUFACTURING APPARATUS WITH A CHAMBER AND A REMOVABLY-MOUNTABLE OPTICAL MODULE; METHOD OF PREPARING A LASER PROCESSING APPARATUS WITH SUCH REMOVABLY-MOUNTABLE OPTICAL MODULE

摘要

An additive manufacturing apparatus comprises a processing chamber (100) defining a window (110) for receiving a laser beam and an optical module (10) The optical module is removably-mountable to the processing chamber for delivering the laser beam through the window. The optical module contains optical components for focusing and steering the laser beam and a controlled atmosphere can be maintained within the module.