Process flow

Process flow

After the board has been securely clamped, the first deep-drawing process takes place. The punch then acts as a sheet metal holder for the second draw. The diameters are gradually reduced to the final shape. Finally, secondary shapes such as holes or passages are formed.

Due to the immediate sequence of stages and the further transport of the stages on the stamps, no grippers are required, so gripper collisions are not possible. This eliminates the need for complex transport investigations.

The contact times between the punch and the material to be formed are minimal, the heat from forming remains in the material to be formed and cooling is reduced. This can mean that annealing operations can be saved when forming stainless steel.

Due to the central arrangement, there is no tilting of the ram, which would otherwise have to be taken into account and compensated for in the tool.

If products with a flange are to be manufactured, the drawn parts are not pulled completely through the drawing die. Instead, they are returned and removed in the gaps.