Metal deforming – By shot-blasting
Patent
1994-09-07
1996-06-18
Jones, David
Metal deforming
By shot-blasting
C21D 906
Patent
active
055266649
ABSTRACT:
A method and apparatus are provided for imparting a textured surface to a work piece, particularly a metal plate or platen used to impress a textured surface on a sheet of plastic laminate or the like. According to one form of the invention, a stream of balls having substantially uniform size, shape, and weight are propelled against a surface of the work piece at a velocity sufficient for the balls to create an impact impression on the surface of the work piece. Particular characteristics of the texture may be varied by changing the velocity, size, shape, weight, size of the stream, distance travelled by the steel balls, and the sweep rate over the work surface. A suction blast gun having a particular size air jet and nozzle projects the balls against the work piece which are fed to the gun through a magazine. The balls are propelled against the surface by a pressurized fluid.
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Jones David
Progressive Technologies, Inc.
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