Patent ID: 6976414
Filing Date: 2005-12-20
Classification: B23D,Y10T

Abstract:
1. A method of trimming an edge of an aluminum sheet comprising: providing a die adjacent to only one side of a cutting blade; securing the aluminum sheet in the die adjacent the cutting blade, the aluminum sheet extending, at a cutting angle of from about 10 to about 30 degrees measured from a plane perpendicular to a cutting direction of the cutting blade and with a cutting blade clearance of at least 5 percent of the thickness of the aluminum sheet measured between the blade and the die, the cutting blade having a side surface substantially perpendicular to said plane and a bottom surface substantially parallel to said plane, said side surface and said bottom surface intersecting to form a cutting edge; and moving the cutting blade in the cutting direction and trimmed the aluminum sheet at the cutting angle and with the cutting blade clearance to thereby produce a trimmed aluminum sheet with substantially no slivers.