LASER CLADDING WITH CARBIDE HARD PARTICLES

摘要

A laser cladding deposited on a metal component protects the metal component against wear and tear. The laser cladding includes an alloy matrix having carbide hard particles embedded within or bonded with the alloy matrix. Induction heaters pre-heat the metal components during the laser cladding process to inhibit cracking of the alloy when the carbide particles are injected. The heaters provide simultaneous induction heating to the external surface of the metal components.

主权项

1. A method of forming on a substrate an alloy cladding including carbides, the method comprising:
induction heating a section of the substrate to be clad using an induction heater; directing an alloy matrix including at least about 65% by weight copper and no more than about 80% by volume of the allow matrix to the section of the substrate using a first feedstock; directing a laser beam at the section of the substrate to heat the alloy matrix to form a melt pool while the section is being induction heated; and injecting at least about 20% by volume of hard particles formers into the melt pool using a second feedstock while the section is being induction heated.