Tool plate for abrasive surface smoothing

Details Tool plate for abrasive surface smoothing Tool plate for abrasive surface smoothing

1990-05-29

1991-02-05

Terrell, William E.

Metal working

Filing

51396, 51398, B24D 1100, B23D 7100

Patent

active

049893041

ABSTRACT:
An improved abrasive tool plate for surface smoothing of wood, plastic and other soft materials comprises a thin steel plate, on one side of which a pattern of etch fluid resistant material has been applied, followed by etching away the surface between the pattern elements down to a determined depth. Parts of the steel plate protected by the etch fluid resistant material pattern will remain between the etched away parts as protruding elements with flat tops, which can serve as cutting elements. According to the invention, the tool plate is thereafter rolled in multiple steps between one rigid roller with raised parallel strips and on elastically deformable roller to deform the plate so that the etched side shows parallel ridges. Preferably, the ridges are formed in two different directions, so that they form a rhombic pattern.

REFERENCES:
patent: 852873 (1907-05-01), Davidson
patent: 2810190 (1957-10-01), Schmidgall
patent: 3045321 (1962-07-01), McDermott
patent: 3869263 (1975-03-01), Greenspan
patent: 4456500 (1984-06-01), Ibata

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