A hem is a flange that has been bent more than 180 degrees. The rope hem is used for attachment to other sheet metal parts. It is used for materials with insufficient ductility to form the open hem.

The flange diameter of a roll is the outside diameter of the roll, usually the largest dimension of the roll. If you have any comments or questions about the glossary, please contact Dan Davis, editor ...

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As well, engineering services using the latest CAD systems are available for custom-designing extrusion tooling products such as crossheads, tips, clamps, flanges, forming rolls, spiderless inline ...