タグアーカイブdrawing die

When the general drawing shape is a square tube, near the center of the straight side wall, there may be a large-scale drawing cracking phenomenon. reason: 1: shape ①drawing height is too large: For the use of reducing the depth of drawing to prevent cracking, other reasons must be checked first. After all the conditions are checked and there is no problem, the problem still occurs, and the method of reducing the stretching height can be used, and a set of stretching and shaping procedures can be added. ②die fillet radius is too small: When the square tube is deep-drawn, the measure to prevent the springback sag on the side…