Laser clad valve for internal combustion engine

Details Laser clad valve for internal combustion engine Laser clad valve for internal combustion engine

1987-06-15

1988-11-29

Chambers, A. Michael

Valves and valve actuation

Valve

Materials

291567R, 123188AA, F01L 300

Patent

active

047877367

ABSTRACT:
In an engine valve comprising a valve body of an iron base material, a Stellite or similar alloy is clad on the body using a laser beam with a sufficient energy to form a cladding layer as a valve face such that the iron from the body-forming iron base material is diffused into the cladding layer throughout its thickness through an interface layer between the cladding layer and the valve body, whereby the cladding layer has 5 to 15 wt % of iron diffused and the interface layer has an iron content continuously decreasing from the iron content of the body-forming iron base material to that of the cladding layer.

REFERENCES:
patent: 3147747 (1964-09-01), Kittelson
patent: 4122817 (1978-10-01), Matlock
patent: 4182299 (1980-01-01), Earle et al.
patent: 4529169 (1985-07-01), Johns et al.

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