Rotating or moving metal components and methods of manufacturing

Details Rotating or moving metal components and methods of manufacturing Rotating or moving metal components and methods of manufacturing

1988-08-26

1990-10-23

Heinrich, Sam

Metal fusion bonding

Process

Using explosive energy

228109, 228155, 228171, 228175, 22826321, 2988971, 416241R, B23K 2008, F02C 700, B21K 304, B23P 1504

Patent

active

049645641

ABSTRACT:
A rotating or moving metal component such as a blade for a gas turbine engine is made from a composite bar of titanium alloy with the sides of the bar having a surface layer of e.g. nickel which is less likely to ignite in particle form or by frictional heating when present in oxygen or air. After the surface layer has been bonded to the titanium alloy it is then parted to provide sections which extend perpendicularly to the plane of the surface layers. Each parted section may then be machined into a blade with the nickel portion forming the tip of the blade. Alternatively, each parted section may itself form the blade tip by attachment on its titanium alloy side to a blade stem.

REFERENCES:
patent: 3798747 (1974-03-01), Lalwaney
patent: 4214355 (1980-07-01), Zelahy
patent: 4247254 (1981-01-01), Zelahy
patent: 4305998 (1981-12-01), Manty et al.
patent: 4354301 (1982-10-01), Takeuchi et al.
patent: 4390320 (1983-06-01), Eiswerth
patent: 4446199 (1984-05-01), Gedwill et al.

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