US 11,111,800 B2
Method for manufacturing an impeller of a rotary machine and an impeller manufactured using such a method
Robin Rettberg, Winterthur (CH); Kaspar Löffel, Küsnacht (CH); Jonas Ess, Basel (CH); Marc Huber, Vogelsang AG (CH); and Martin Hartmann, Windisch (CH)
Assigned to SULZER MANAGEMENT AG, Winterthur (CH)
Filed by Sulzer Management AG, Winterthur (CH)
Filed on May 31, 2018, as Appl. No. 15/994,063.
Claims priority of application No. 17178975 (EP), filed on Jun. 30, 2017.
Prior Publication US 2019/0003322 A1, Jan. 3, 2019
Int. Cl. F01D 5/34 (2006.01); B22F 5/00 (2006.01); B22F 10/20 (2021.01); B33Y 10/00 (2015.01); B33Y 40/00 (2020.01); B33Y 80/00 (2015.01); B23K 101/00 (2006.01); B23K 26/342 (2014.01); F01D 5/04 (2006.01)
CPC F01D 5/34 (2013.01) [B22F 5/009 (2013.01); B22F 10/20 (2021.01); B23K 26/342 (2015.10); B33Y 10/00 (2014.12); B33Y 40/00 (2014.12); F01D 5/043 (2013.01); B23K 2101/001 (2018.08); B33Y 80/00 (2014.12); F05D 2230/50 (2013.01); F05D 2240/30 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for manufacturing an impeller of a rotary machine, the impeller comprising at least one vane limiting an inner channel which is at least partly closed, the method comprising:
successively manufacturing the impeller from several material layers by a build-up process from a powder, by applying the powder in each case to a processing plane for the production of each material layer;
producing a material layer from the powder by a selective energy input; and
determining a structural orientation for the impeller, according to which the impeller is built up in layers, the structural orientation being defined by only a first angle and a second angle, the first and second angles defining the relative position of the impeller to the processing plane.