Symbols
Symbols used to decribe perforated metal plate:
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overall length of the short side of a plate (plate width) |
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length of the short side of the perforated area of plate |
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overall length of the long side of a plate (plate length) |
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length of the long side of the perforated area of plate |
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amount out-of-square of a rectangular plate |
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width of the margins on the long sides of a plate |
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width of the larger e-margin, if not equal |
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width of the smaller e-margin, if not equal |
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width of the margins at the short side of a plate |
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width of the larger f-margin, if not equal |
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width of the smaller f-margin, if not equal |
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deviation from edge flatness |
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deviation from edge straightness |
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pitch of holes |
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plate thickness |
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height of turn-in zone of hole |
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height of cutting zone of hole |
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height of breakaway zone of hole |
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height of burr on hole |
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hole size, measured on punch side |
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hole size, measured on reverse (burr) side |
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open screening area |