Poppet valve manufacture

Details Poppet valve manufacture Poppet valve manufacture

1991-02-22

1992-12-22

Beck, Shrive

Coating processes

With cutting, holding, severing, or abrading the base

427299, 427405, 427422, 427425, 427455, 29890129, B05D 312, B05D 102

Patent

active

051733390

ABSTRACT:
Poppet valves are manufactured by rotating a metal spray deposition nozzle relative to a rod or tube about the longitudinal axis of the rod or tube to deposit metal at a localized region intermediate the ends of the rod or tube so as to form a flange-like accretion on the rod or tube, and subsequently cutting through the rod or tube and the accretion at the center of the localized region to form two poppet valve preforms which are then subjected to finishing treatments. Metals having differing properties of heat, wear and corrosion resistance may be coated upon one another in forming said accretion.

REFERENCES:
patent: 3642519 (1972-02-01), Tiner et al.
patent: 4619845 (1986-12-01), Ayers et al.
patent: 4686348 (1987-08-01), Johns et al.
patent: 4839239 (1989-06-01), Ducos et al.

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