US 12,097,582 B2
Crankshaft repair system and method
David Harter, Grove City, PA (US); Zackary Quidetto, Grove City, PA (US); David Lachendro, Grove City, PA (US); Beau Fisher, Grove City, PA (US); Paul Knapik, Grove City, PA (US); Justin Fowler, Grove City, PA (US); William Gray, Grove City, PA (US); and John P. Dowell, Grove City, PA (US)
Assigned to Transportation IP Holdings, LLC, Norwalk, CT (US)
Filed by Transportation IP Holdings, LLC, Norwalk, CT (US)
Filed on Feb. 9, 2023, as Appl. No. 18/166,876.
Prior Publication US 2024/0269784 A1, Aug. 15, 2024
Int. Cl. B23P 6/00 (2006.01); B23K 26/342 (2014.01); F16C 3/06 (2006.01)
CPC B23P 6/00 (2013.01) [B23K 26/342 (2015.10); B23P 2700/07 (2013.01); F16C 3/06 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A crankshaft for an internal combustion engine comprising:
at least one crank pin;
at least one crank journal;
at least one web extending between the at least one crank pin and the at least one crank journal, the web having a web surface with a portion of the web surface defining a repair region that is an undercut that extends into the body of the crankshaft; and
a cladding deposit fused to the web surface in the repair region, the cladding deposit being formed by cladding a metal additive to the undercut;
wherein the web further comprises a pin collar adjacent to the at least one crank pin and a journal collar adjacent to the crank journal;
wherein cladding comprises:
a first laser cladding, wherein the cladding deposit is formed in the undercut via the first laser cladding; and
a second laser cladding after the cladding deposit is formed in the undercut via the first cladding.