چھالا سامان اعلی تعدد مشین بفر

کے ساتھ ایک حصہ حاصل کرنے کے لئے<30°, the edge of the blank must be moved towards the punch during the stretch-bending process. Preferably these movements are performed with the die, otherwise the blank segment will slide along the edge of the die and undergo bending and subsequent straightening, causing excessive thinning of the blank segment. A mold structure with movable concave modules was developed, and the mold was mounted on a press with a high-power buffer for clamping the edge of the blank.