Metal working – Method of mechanical manufacture – Valve or choke making
Patent
1997-12-29
1999-11-16
Cuda, Irene
Metal working
Method of mechanical manufacture
Valve or choke making
295276, 164 46, B23P 1500
Patent
active
059834951
ABSTRACT:
Method of making seat inserts by thermally spraying bulk material. The method includes the steps of: (i) preparing a mandrel having an outside dimension not greater than the desired inside dimension of the desired insert, the mandrel having a part to provide for separation of the sprayed bulk material from the mandrel, (ii) thermal spraying separate particles of one or more types of steel or nickel alloys in the presence of a controlled oxidizing medium to form a bulk composite material on the mandrel with a density of at least 99% and, (iii) after cooling the bulk material, removing such material from the mandrel and slicing it into discrete seat shapes for implanting into the final product.
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SAE Technical Paper 820233--Developments in Sintered Valve Seat Inserts--M. S. Lane and P. Smith.
SAE Technical Paper 810237--Sintered Materials With New Concept For Valve Seat-With and Without Cobalt--Nakata et al.
SAE Techniical Paper 880668--Sintered Valve Seat Insert For High Performance Engine--Mineo Onoda and Nobuhito Kuroishi.
SAE Technical Paper 920570--New Pm Valve Seat Insert Materials For High Performance Engines--Akira Fujiki and Makoto Kano.
Cartwright Eddie Lee
Joaquin Armando Mateo
McCune Robert Corbly
Popoola Oludele Olusegun
Reatherford Larry Van
Cuda Irene
Ford Global Technologies Inc.
Malleck Joseph W.
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