Limiting drawing ratio second draw with intermediate annealing

5.3.4

According to FIG.27 βn max with intermediate annealing can be determined by the following equation. Here n denotes the number of moves.

Eqn. 1
\require{color}\definecolor{myred}{RGB}{255,0,0} \beta_{\color{myred}n\;max}=\beta_{\color{myred}1}\cdot n^{\color{myred}-0,07\cdot\beta_{\color{myred}1}}
Limiting drawing ratioβn max=1.65 
Draw ratioβ1 = 1.8
Numbern = 2
Calc 1
Maximum Draw Ratio
27
Herold, G.; Kluge, M. EFB-Forschungsbericht Nr. 61: Simulation des Formstempeltiefziehens im WeiterschlagEuropäische Forschungsgesellschaft für Blechverarbeitung e. V. Hannover1994
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