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1. (WO2015119821) FILLER CLOTH FOR LASER CLADDING

Pub. No.:    WO/2015/119821    International Application No.:    PCT/US2015/013391
Publication Date: Fri Aug 14 01:59:59 CEST 2015 International Filing Date: Fri Jan 30 00:59:59 CET 2015
IPC: B23K 35/30
B23P 6/00
B23K 26/20
B23K 35/02
Applicants: SIEMENS ENERGY, INC.
Inventors: BRUCK, Gerald J.
KAMEL, Ahmed
Title: FILLER CLOTH FOR LASER CLADDING
Abstract:
A preform (22A-F) containing metal (32, 34 36A-C, 38) and flux (33, 35, 37, 39AC) for depositing a metal layer to a component being repaired or additively manufactured. The metal may be constrained in the preform in a distribution that creates a desired shape of the deposited metal in response to melting of the metal with an energy beam (46). The preform may be embodied as woven (22D) or unwoven (22B, 22C) cloth containing fibers of the flux, and fibers, particles or foil of the metal. It may contain at least 30 wt% fibers and at least 40% void fraction to enable flexibility and laser penetration. Alternating layers (32, 33) or flexible sintered sheets (36A-C, 37) of metal and flux fibers may be bound or laminated to form the preform. A woven preform may be made of alternating or crossing yarns (34, 35) of metal and flux.