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RAL-GZ 615
DIN EN ISO 24041
Certification:
DIN EN ISO 9001:2008
Environmental Certification:
DIN EN ISO 14001:2009
Technical Terms of Delivery
4. Edge bows
Edge bows may occur on perforated sheets with different side margins (e2>e1) effecting a deviation d between centre and end of the edge of the sheet.
Abbildung 5: Beispiel der Säbeligkeit
This deviation d is measured at the concave side. It depends on the length, width, thickness, open area, type of material and the relation of e2 to e1.
If the sheets are cut to size after perforation the curved edge only refers to the perforated area.
Zulässige Grenzwerte für Säbeligkeit "d":
| Streifen- und Profillänge | [d] |
|---|---|
| up to 2000 mm | 5 mm |
| up to 3000 mm | 7,5 mm |
| up to 4000 mm | 10,0 mm |
| up to 5000 mm | 12,5 mm |
| up to 6000 mm | 15,0 mm |
1. Length and width
2. Thickness of plates
3. Squareness of cut plates
4. Edge bows
5. Flatness
6. Wavy edges
7. Blank areas
8. Conical section of hole
9. Punching burr and shearing burr
10. Missing holes / Punch breakage
11. Beginning and end of perforated area
12. Lubricating residue
13. Surfaces
14. Deviations
Technical Informations
Standards and sizes
Basic Terms
Hole Shapes