FLC AlMg3 vs DC05
2.3
Fig. 1
Forming limit curve AlMg3 compared to DC05
A clear disadvantage of the aluminum alloy can be seen when comparing the altitudes. The reduced formability of aluminum with multi-axial true strains requires production restrictions.21
Eqn. 1
Eqn. 2
Eqn. 3
| Natural strain | φ1 | = | |||
| φ2 | = | ||||
| φ3 | = | ||||
| Elongation | ε1 | = | % | ||
| ε2 | = | % | |||
| ε3 | = | % | |||
| Sheet thickness | s1 | = | mm |
| Length | l1 | = | mm | |||
| l2 | = | mm | ||||
| Circle diameter | d | = | mm | |||
| Sheet thickness | s0 | = | mm |
Calc 1
True strains to the circle element
21
Kluge, Siegfried / Prozesse der Blechumformung / Carl Hanser Verlag / München / 2020 / …