Drawing force in transition zone
7.2
Fig. 1
Deformation zones during prismatic deep drawing
1 Corner area 2 Transition zone 3 Straight drawn part side A Length of transition zone b Straight drawn part side
First, the tensile stress in the corner of the drawn part is calculated. The tensile stress on the straight side of the drawn part is then calculated. Finally, the drawing force in the transition zone can be determined using the following formula:
Eqn. 1
| FU | = | kN |
| Number | n | = | ||||
| Sheet thickness | s0 | = | mm | |||
| Tension difference | Δσ | = | MPa |
Calc 1
Drawing Force Transition Zone 35
35
Strackerjahn, W. / Die Voraussage des Versagensfalls beim Tiefziehen rechteckiger Teile / Dissertation / Hannover / 1982 / …