公开(公告)号：US20180200798A1

公开(公告)日：2018-07-19

申请号：US15409483

申请日：2017-01-18

Applicant: United Technologies Corporation

Inventor： John A. Sharon ,  Daniel V. Viens ,  Tahany Ibrahim El-Wardany ,  Gajawalli V. Srinivasan ,  Joseph J. Sangiovanni ,  Ranadip Acharya

IPC: B22F5/00 ,  B33Y10/00 ,  B33Y80/00 ,  B22F3/105 ,  B23K26/342 ,  B23K26/70 ,  F01D5/02

CPC classification number: B22F5/009 ,  B22F3/1055 ,  B22F7/06 ,  B22F2301/00 ,  B22F2998/10 ,  B23K26/0006 ,  B23K26/082 ,  B23K26/342 ,  B23K2101/001 ,  B23K2103/26 ,  B33Y10/00 ,  B33Y80/00 ,  F01D5/02 ,  F05D2300/171 ,  F05D2300/174 ,  F05D2300/609 ,  Y02P10/295

Abstract: An additively manufactured alloy component has a first portion formed of the alloy and having a first grain size, and a second portion formed of the alloy and having a second grain size smaller than the first grain size. In an embodiment, the alloy component is an alloy turbine disk, the first portion is a rim region of the alloy turbine disk, and the second portion is a hub region of the alloy turbine disk. The first and second grain sizes may be achieved by controllably varying the laser power and/or scan speed during additive manufacturing.