Method of processing corners of metal panel

Details Method of processing corners of metal panel Method of processing corners of metal panel

1998-01-05

1999-08-31

Hail, III, Joseph J.

Metal deforming

Process

Deforming sheet metal

72212, B21C 3702, B21D 908

Patent

active

059438991

ABSTRACT:
The present invention relates to a method of processing corners of metal panel, and more particularly to a method of processing corners of metal panel which is capable of processing the corners of the metal panel without tearing or notching of the material of the metal panel, so that the sealant or welding process thereof is not needed. The method comprises the steps of bending the metal panel according to a desired standard, the end of one side edge of each of bended portions being bended with not being bended by 100 mm from the end, and being then closely attached and fixed onto a supporter; pressing the metal panel using a roller rotationally, upwardly and downwardly moving in the vertical direction to process the corners of the metal panel; and cutting unnecessary metal piece formed in the pressing step.

REFERENCES:
patent: 419156 (1890-01-01), McGliehan
patent: 3613427 (1971-10-01), Haddon

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