US 11,752,578 B2
Abrasive preforms and manufacture and use methods
Eric W. Stratton, Mansfield, TX (US); and Michael J. Minor, Mansfield, TX (US)
Assigned to RTX Corporation, Farmington, CT (US)
Filed by RTX Corporation, Farmington, CT (US)
Filed on Sep. 28, 2020, as Appl. No. 17/34,247.
Application 17/034,247 is a division of application No. 16/027,175, filed on Jul. 3, 2018, granted, now 10,786,875.
Application 16/027,175 is a continuation in part of application No. 14/755,350, filed on Jun. 30, 2015, granted, now 10,030,527, issued on Jul. 24, 2018.
Application 16/027,175 is a continuation in part of application No. 14/750,415, filed on Jun. 25, 2015, granted, now 10,018,056, issued on Jul. 10, 2018.
Application 16/027,175 is a continuation in part of application No. 14/750,324, filed on Jun. 25, 2015, granted, now 10,012,095, issued on Jul. 3, 2018.
Claims priority of provisional application 62/020,041, filed on Jul. 2, 2014.
Claims priority of provisional application 62/020,038, filed on Jul. 2, 2014.
Claims priority of provisional application 62/020,036, filed on Jul. 2, 2014.
Prior Publication US 2021/0008669 A1, Jan. 14, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. B23K 35/00 (2006.01); B23K 35/02 (2006.01); B23K 35/30 (2006.01); B23K 1/00 (2006.01); F01D 11/12 (2006.01); B23K 26/38 (2014.01); B24D 3/06 (2006.01); B24D 18/00 (2006.01); B23K 101/00 (2006.01); B23K 101/18 (2006.01); B23K 103/16 (2006.01)
CPC B23K 35/0238 (2013.01) [B23K 1/0018 (2013.01); B23K 26/38 (2013.01); B23K 35/304 (2013.01); F01D 11/122 (2013.01); B23K 2101/001 (2018.08); B23K 2101/18 (2018.08); B23K 2103/166 (2018.08); B24D 3/06 (2013.01); B24D 18/0054 (2013.01); F05D 2230/237 (2013.01); F05D 2230/90 (2013.01); F05D 2300/175 (2013.01); F05D 2300/2282 (2013.01); F05D 2300/6032 (2013.01); F05D 2300/611 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A braze preform comprising an integral combination of:
a self-braze material;
an abrasive embedded in the self-braze material;
an additional braze material layer without abrasive; and
a single-piece Ni-based superalloy layer between the additional braze material layer and the self-braze material.