Method of manufacturing a low energy-loss waveguide circuit elem

Details Method of manufacturing a low energy-loss waveguide circuit elem Method of manufacturing a low energy-loss waveguide circuit elem

1974-12-26

1976-07-06

Lanham, C.W.

Metal deforming

With 'coating' of work

Metal coating

29DIG47, 29600, 72258, 72267, 72700, B21C 2322, B21C 2318, H01P 1100

Patent

active

039674843

ABSTRACT:
A method of manufacturing low energy-loss waveguide circuit elements in which a film of metal with a low resistivity is joined to a base metal by thermal pressing or electric plating, and a hard male die of a desired shape is pressed into the base metal from above the metal film, whereby a plastic strain is caused in the base metal thereby to form a recessed portion in the base metal having an internal surface covered with the low resistivity metal.

REFERENCES:
patent: 2471663 (1949-05-01), Tietz
patent: 2953247 (1960-09-01), Walter et al.
patent: 2986273 (1961-05-01), Bardgett
patent: 3184945 (1965-05-01), Hornak et al.
patent: 3197857 (1965-08-01), Nippert
patent: 3503243 (1970-03-01), Katz
patent: 3648351 (1972-03-01), Kibler

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