Method and apparatus for forming a metal sheet having a concave-

Details Method and apparatus for forming a metal sheet having a concave- Method and apparatus for forming a metal sheet having a concave-

1988-11-07

1989-09-19

Seidel, Richard K.

Metal founding

Process

Disposition of a gaseous or projected particulate molten...

118723, 427 531, 427251, 427253, 4272553, B22D 2300

Patent

active

048672238

ABSTRACT:
A method and apparatus for forming a metallic sheet having a concave-convex profile by chemical vapor deposition utilizes a die having a profiled surface defined by a number of spaced protrusions. The method comprises covering at least a portion of the profiled surface with a mask of transparent material in such a way that the mask comes into a closely adjacent relation to the top faces of the protrusions, feeding at a reaction gas of a metallic compound to a restricted space defined between the mask and the profiled surface, radiating a light beam through the transparent mask onto the profiled surface in order to decompose the reaction gas and deposit on the profiled surface a metallic layer, and removing the resulting deposited metallic layer from the profiled surface to obtain a metallic sheet having a concave-convex profile corresponding to the profiled surface of the die. The apparatus comprises a reaction chamber within which the die and the mask are mounted for making the metallic sheet by chemical vapor deposition and includes a take-up roll driven to rotate to peel the metallic sheet off the die and wind the same thereon.

REFERENCES:
patent: 2685121 (1954-08-01), Davis et al.
patent: 2701901 (1955-02-01), Pawlyk
patent: 3176356 (1965-04-01), Jenkin
patent: 3608615 (1971-09-01), Conlon

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