1、 Correctly choose the stretching direction

        Stamping continuous stretching can be divided into two types: upward and downward stretching (positive and negative stretching). For relatively low height stretching, it is recommended to use downward stretching, which has a simple structure. When the stretching height is high, upward stretching is usually used for the convenience of feeding and product feeding stability.

2. Correct selection of edge banding

        During the general stretching process, independent pressing force or edge ring is required. Subsequent stretching processes only need to complete the mold clamping to ensure the flattening of the flange.

III. Selection of Material Removal Structure

        It is generally recommended to use a discharge device with elasticity. To ensure the discharge effect, rigid or semi-rigid discharge can also be used, but space for floating material needs to be left.