US 11,852,076 B2
Brazing using localized heating
Jason Ryon, Carlisle, IA (US); Brandon P. Williams, Johnston, IA (US); and Troy Finton, Phoenix, AZ (US)
Assigned to Collins Engine Nozzles, Inc., Des Moines, IA (US)
Filed by Delavan Inc., West Des Moines, IA (US)
Filed on Jan. 21, 2022, as Appl. No. 17/581,559.
Prior Publication US 2023/0235703 A1, Jul. 27, 2023
Int. Cl. F02C 7/22 (2006.01); B23K 1/00 (2006.01); B23K 1/005 (2006.01); F23D 14/48 (2006.01); B23K 101/00 (2006.01)
CPC F02C 7/222 (2013.01) [B23K 1/0018 (2013.01); B23K 1/0056 (2013.01); F23D 14/48 (2013.01); B23K 2101/001 (2018.08); F05D 2230/237 (2013.01); F05D 2260/60 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method comprising:
applying braze to a joint location of two work pieces;
applying local heating to the joint location of the two work pieces until braze melting temperature is achieved to melt the braze while maintaining temperature of more remote portions of each work piece; and
reducing heating of the braze to form a braze joint joining the joint location of the two work pieces, wherein a first one of the two work pieces is a fuel manifold, wherein a second one of the two work pieces is a fuel injection component, wherein the manifold is mounted to a gas turbine engine, and wherein joining the joint location of the fuel injection component to the manifold is performed in situ on the gas turbine engine.