US 12,090,569 B2
Method of manufacturing a component of a rotary machine and component manufactured using said method
Robin Rettberg, Winterthur (CH); Thomas Kränzler, Salem (DE); and Andreas Würms, Gächlingen (CH)
Assigned to SULZER MANAGEMENT AG, Winterthur (CH)
Filed by Sulzer Management AG, Winterthur (CH)
Filed on Oct. 29, 2020, as Appl. No. 17/083,612.
Application 17/083,612 is a division of application No. 15/592,852, filed on May 11, 2017, granted, now 10,857,621.
Claims priority of application No. 16172289 (EP), filed on May 31, 2016.
Prior Publication US 2021/0039194 A1, Feb. 11, 2021
Int. Cl. B23K 26/00 (2014.01); B23K 9/04 (2006.01); B23K 9/167 (2006.01); B23K 10/02 (2006.01); B23K 26/342 (2014.01); B23P 15/00 (2006.01); B33Y 10/00 (2015.01); B33Y 80/00 (2015.01); F01D 5/34 (2006.01); F04D 9/04 (2006.01); F04D 29/22 (2006.01); F04D 29/28 (2006.01); F04D 29/44 (2006.01); B23K 101/00 (2006.01); F01D 5/04 (2006.01); F01D 9/04 (2006.01)
CPC B23K 26/0093 (2013.01) [B23K 9/044 (2013.01); B23K 9/167 (2013.01); B23K 10/027 (2013.01); B23K 26/342 (2015.10); B23P 15/006 (2013.01); B33Y 10/00 (2014.12); B33Y 80/00 (2014.12); F04D 29/2227 (2013.01); F04D 29/284 (2013.01); B23K 2101/001 (2018.08); F01D 5/04 (2013.01); F01D 9/041 (2013.01); F04D 29/22 (2013.01); F04D 29/444 (2013.01); F04D 29/448 (2013.01); F05D 2230/10 (2013.01); F05D 2230/22 (2013.01); F05D 2230/31 (2013.01); F05D 2230/50 (2013.01); F05D 2230/53 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A component of a rotary machine formed from a blank, the component comprising:
a center;
a boundary surface; and
at least one inner passage extending from the center to the boundary surface and being at least partly closed, the at least one inner passage being formed by a first subtractive machining in which a part of the at least one inner passage at least comprises an opening of the at least one passage into the boundary surface as well as a cut-out in a top surface, the cut-out being manufactured by the first subtractive machining, and the at least one inner passage subsequently completed by a building up of the blank on the top surface such that the blank has a first portion and the building up forms a second portion, the first and second portions having different microstructures with a transition between the first and second portions, a portion of each of the first and second portions forming a portion of a surface of the at least one inner passage.