公开(公告)号：US11865614B2

公开(公告)日：2024-01-09

申请号：US17254700

申请日：2019-09-25

Applicant: LINDE GMBH

Inventor： Camille Pauzon ,  Tanja Arunprasad ,  Andres Torres

IPC: B22F10/322 ,  B22F10/28 ,  B22F10/85 ,  B22F12/30 ,  B22F12/41 ,  B22F12/70 ,  B33Y10/00 ,  B22F10/32 ,  B33Y30/00 ,  B33Y50/02 ,  B22F10/77 ,  B22F12/00 ,  B22F12/90 ,  B22F10/34

CPC classification number: B22F10/322 ,  B22F10/32 ,  B22F10/85 ,  B22F12/30 ,  B22F12/41 ,  B22F12/70 ,  B33Y10/00 ,  B22F10/28 ,  B22F10/34 ,  B22F10/77 ,  B22F12/38 ,  B22F12/90 ,  B22F2201/11 ,  B22F2201/12 ,  B22F2202/13 ,  B22F2203/00 ,  B33Y30/00 ,  B33Y50/02 ,  B22F2999/00 ,  B22F10/32 ,  B22F2201/11 ,  B22F2201/12 ,  B22F2999/00 ,  B22F12/90 ,  B22F2201/03 ,  B22F2999/00 ,  B22F10/32 ,  B22F10/34 ,  B22F2201/11 ,  B22F2201/12

Abstract: According to the present invention a method is provided for feeding a gas flow to an additive manufacturing space during a manufacturing process wherein the gas flow is established by a pump connected to the manufacturing space wherein the pump is controlled by a set differential pressure, and wherein the gas flow consists of Helium or the gas flow consists of a gas mixture comprising 30 Vol.-% Argon and 70 Vol.-% Helium or the gas flow consists of a gas mixture comprising 50 Vol.-% Argon and 50 Vol.-% Helium or the gas flow consists of a gas mixture comprising 70 Vol.-% Argon and 30 Vol.-% Helium.