Design rules Aluminium

For AlMg3, AlMg1. Laser cutting up to 20 mm, bending up to 8 mm sheet thickness. The values come from our rule set. The configurator checks your part with the same figures.

Bending per sheet thickness

Bending rules Aluminium per sheet thickness
Sheet thicknessSmallest flange (outside)Inside radiusHole to bend edgeLongest bendLongest bend, acute angleHem
0.5 mm8 mm1 mm5 mm3,230 mm3,230 mmyes
0.8 mm8 mm1 mm5 mm3,230 mm3,230 mmyes
1 mm11.7 mm3.4 mm9.7 mm3,230 mm3,230 mmyes
1.5 mm11.9 mm3.4 mm9.7 mm3,230 mm3,230 mmyes
2 mm12.1 mm3.8 mm9.7 mm3,230 mm3,230 mmyes
2.5 mm12.3 mm3.8 mm9.7 mm3,230 mm3,230 mmno
3 mm12.5 mm3.7 mm9.7 mm3,230 mm3,230 mmno
4 mm20.7 mm4 mm18.1 mm3,230 mm3,230 mmno
5 mm20.7 mm6.5 mm18.1 mm2,320 mm3,230 mmno
6 mm20.7 mm9 mm21 mm1,490 mm3,230 mmno
8 mm39.1 mm12 mm35.9 mm2,170 mmon requestno
10 mmcan be ordered as a laser-cut blank
12 mmcan be ordered as a laser-cut blank
15 mmcan be ordered as a laser-cut blank
20 mmcan be ordered as a laser-cut blank

Laser cutting per sheet thickness

Laser rules Aluminium per sheet thickness
Sheet thicknessSmallest holeHole recommended fromSmallest webWeb recommended fromSmallest edge distanceEdge recommended from
0.5 mm1 mm1 mm0.5 mm2 mm0.5 mm1.5 mm
0.8 mm1 mm1 mm0.5 mm2 mm0.5 mm1.5 mm
1 mm1 mm1 mm0.5 mm2 mm0.5 mm1.5 mm
1.5 mm1 mm1.5 mm0.75 mm2 mm0.75 mm1.5 mm
2 mm1 mm2 mm1 mm2 mm1 mm2 mm
2.5 mm1.25 mm2.5 mm1.25 mm2.5 mm1.25 mm2.5 mm
3 mm1.5 mm3 mm1.5 mm3 mm1.5 mm3 mm
4 mm2 mm4 mm2 mm4 mm2 mm4 mm
5 mm2.5 mm5 mm2.5 mm5 mm2.5 mm5 mm
6 mm3 mm6 mm3 mm6 mm3 mm6 mm
8 mm6.4 mm8 mm4 mm8 mm4 mm8 mm
10 mm8 mm10 mm5 mm10 mm5 mm10 mm
12 mm9.6 mm12 mm6 mm12 mm6 mm12 mm
15 mm15 mm15 mm7.5 mm15 mm7.5 mm15 mm
20 mm20 mm20 mm10 mm20 mm10 mm20 mm

How to read the tables

  • Smallest flange: shortest flange length, measured outside, determined on our press brake per die. From this value the flange rests securely on the tool.
  • Inside radius: the radius that our press brake produces at this sheet thickness with the standard tool on a right-angled bend, measured per die. With thin sheet it is usually larger than the sheet thickness. Calculate your flat pattern with this radius.
  • Hole to bend edge: smallest distance from the hole edge to the bend edge. With less distance, the hole distorts during bending.
  • Longest bend: largest length of a bend edge. With thick sheet the press force limits the length. “Acute angle” means: inside angle below 88°.
  • Hem: Sheet fully pressed together (hem), possible up to 2 mm sheet thickness.
  • Smallest hole, web, edge distance: from the smallest value we manufacture your part, from the recommended value without restriction.

The configurator shows which sheet thicknesses we supply in Aluminium. The tables show the state of our rule set at the last website update; the check when you order is binding. For a borderline case, send a review request.

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