Search International and National Patent Collections

1. (WO2017202721) METHOD FOR ADDITIVE MANUFACTURING USING HYDROGENATED TITANIUM POWDER IN EBM

Pub. No.:    WO/2017/202721    International Application No.:    PCT/EP2017/062120
Publication Date: Fri Dec 01 00:59:59 CET 2017 International Filing Date: Sat May 20 01:59:59 CEST 2017
IPC: B22F 3/105
B33Y 10/00
B33Y 30/00
B33Y 40/00
B33Y 70/00
Applicants: ARCAM AB
Inventors: ACKELID, Ulf
Title: METHOD FOR ADDITIVE MANUFACTURING USING HYDROGENATED TITANIUM POWDER IN EBM
Abstract:
A method comprising the steps of: distributing a titanium alloy or pure titanium powder layer on a work table inside a vacuum chamber, directing at least one electron beam from at least one electron beam source over the work table causing the powder layer to fuse in selected locations, distributing a second powder layer on the work table of a titanium alloy or pure titanium inside the build chamber, directing the at least one electron beam over the work table causing the second powder layer to fuse in selected locations, and releasing a predefined concentration of the gas from the metal powder into the vacuum chamber when at least one of heating or fusing the metal powder layer, wherein at least one gas comprising hydrogen is absorbed into or chemically bonded to the titanium or titanium alloy powder to a concentration of 0.01-0.5 % by weight of the hydrogen.