There was a phenomenon of metal stamping parts forming and measures, fast collection

We are currently in the process of production of metal stamping parts have encountered such a situation, when raw materials into the lower die again, hardware stamping mould for raw material with resistance. Such a situation can lead to the speed of the raw materials into the mould. After completion of the cutting, metal stamping parts forming happens the location of the wandering. Metal stamping parts stamping parts running deviation reason: 1: asymmetry of the metal stamping forming, on both sides of the raw materials and mould interface is different, this is not equal to the stress caused by raw material both sides after blanking stamping parts will cause different degree of deformation; Number 2: stamping parts on both sides of the forming, the forming of number of side resistance is big, forming a large number of raw materials to the square running deviation; 3: when V hardware stamping forming production, if it is mold design center symmetry, small side Angle of die edge closer to the distance at the top of the punch, the effect on the edge of the concave die is pressure is bigger, so the resistance is bigger also, cause raw material to one side of the small die Angle wandering; 4: the radius on both sides of the metal stamping mold, radius small resistance is big, big radius of small resistance and cause the direction of the raw materials to the small fillet radius wandering; 5: one more thing we tend to ignore, hardware stamping mould on both sides of the clearance and lubrication condition is not consistent, the raw material is easy to run towards the direction of the small gap, poor lubrication condition of partial; To prevent metal stamping forming method of folding: 1: use semmetry die design of forming die, die side sliding radius equal, on both sides of the punch and die clearance. V when the forming die Angle does not equal; 2: the forming die with back pressure to play top device. Bending is first play top device and punch to raw material compaction, and then decline gradually forming. When forming steel plate by compaction, reduce or eliminate the slip; 3: using a dowel pin forming mold, forming pieces at the bottom of the hole, it is to use the set of the locating pin on the back pressure roof, so forming raw materials they can't move, so as to prevent the slip; 4: when making forming die mould is installed, screw and dowel pin lock, avoid loose materials caused by sliding; 【 Relevant recommendation 】 Details: how much do you know the new energy automotive stamping parts? Details: sharing details of stamping processing industry: precision metal stamping parts figure how to draw, please be aware that this several steps