The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 15, 2020

Filed:

Feb. 07, 2018
Applicant:

Nuovo Pignone S.r.l., Florence, IT;

Inventors:

Pierluigi Tozzi, Florence, IT;

Iacopo Giovannetti, Florence, IT;

Andrea Massini, Florence, IT;

Assignee:

NUOVO PIGNONE SRL, Florence, IT;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F 3/105 (2006.01); F01D 5/18 (2006.01); B23K 26/342 (2014.01); B22F 5/00 (2006.01); B22F 5/10 (2006.01); F04D 29/02 (2006.01); F04D 29/28 (2006.01); B22F 5/04 (2006.01); B23K 15/00 (2006.01); F01D 5/14 (2006.01); B23K 101/00 (2006.01);
U.S. Cl.
CPC ...
F01D 5/18 (2013.01); B22F 3/1055 (2013.01); B22F 5/009 (2013.01); B22F 5/04 (2013.01); B22F 5/10 (2013.01); B23K 15/0006 (2013.01); B23K 15/0086 (2013.01); B23K 26/342 (2015.10); F01D 5/147 (2013.01); F04D 29/023 (2013.01); F04D 29/284 (2013.01); B23K 2101/001 (2018.08); F05D 2230/22 (2013.01); F05D 2230/31 (2013.01); F05D 2300/171 (2013.01); F05D 2300/174 (2013.01); F05D 2300/175 (2013.01); F05D 2300/608 (2013.01); Y02P 10/25 (2015.11);
Abstract

A method of manufacturing a turbo-machine impeller, which includes a hub and a plurality of blades, using powder material in an additive-manufacturing process. The method includes: applying energy to the powder material by way of a high energy source, and solidifying the powder material. At least one bulky portion of the hub is irradiated such that the powder material solidifies in a lattice structure surrounded by an outer solid skin structure enclosing the lattice structure.


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