Perforated Metal::Perforated Patterns
End Patterns
On staggered pattern perforations, the end patterns will either
be "finished" or "unfinished" depending on the tooling
available. An unfurnished end pattern is Standard; however, a finished
end is available as a non-standard item. Consult Ametco for details.
"Unfinished" end patterns are standard on some staggered pattern
perforations, meaning the hole pattern appears incomplete at the end of
the sheet.
"Finished" end patterns are non-standard on most staggered
pattern perforations, meaning the hole pattern is complete at the end of
the sheet. (Refer to Perforating Standards for details)
Margins
The "margin" on a perforated sheet or plate refers
to the distance from the edge of the sheet to the first perforation along
the same dimension. "No margin" refers to the last row or set
of perforations extending off the sheet or plate.
Minimum Margins
Perforated stock size sheet or plate with minimum margins
Specified Margins
Sheet or plate resheared after perforating with margins specified
| Staggered Patterns
Round - Standard
Square - Standard
Slotted - End Stagger
Slotted - Side Stagger |
Straight Line Patterns
Round - Optional
Square
Slotted
45 Degree Pattern
Round - Optional |
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Perforated Patterns
