Method of finishing aluminum sheets

Details Method of finishing aluminum sheets Method of finishing aluminum sheets

1982-02-04

1984-08-28

Goldberg, Howard N.

Metal working

Method of mechanical manufacture

Combined manufacture including applying or shaping of fluent...

295274, B21B 146

Patent

active

044675151

ABSTRACT:
A method of finishing a rectangular sheet of bright aluminum to provide a central rectangular portion surrounded on its four sides by a brushed satin border. The method of the invention includes the steps of brushing the bright aluminum surface along a pair of narrow bands extending the entire length of the rectangular sheet with the narrow bands being spaced laterally from each other, and brushing the opposite ends of the aluminum sheet between the narrow bands for predetermined relatively short distances inward from the end edges of the sheet. The method further includes sharpening the definition between the brushed satin and bright areas by such procedures as providing a slight bend in the sheet or painting the bright area with the painting extending into the brushed area to provide a sharp transition line.

REFERENCES:
patent: 2102162 (1937-12-01), Nierenberg
ASM Metals Handbook, vol. 2, 8th Ed., .COPYRGT.1964, pp. 614 & 615.
Surface Treatment of Metal, by Dr. F. A. Morral, Wire, Apr. 1945, pp. 272-273 & 276.

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