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Metal stamping bending problems, how do we respond?

by:Fortuna     2021-01-31
Metal stamping bending, the size and shape, as the more than 20 years of experience in stamping metal stamping manufacturer, these are common to the problem, the authors analyze the together with everybody today: 1) Because hardware stamping materials caused by springback is unqualified; Locator wear deformation occurs, and make the article had no, must be replaced a new locator; In undirected bending die, on the pressure adjustment, press the slider bottom dead center position adjustment is undeserved, can cause bending parts unqualified size and shape; Metal stamping die pressure device failure or not enough material, have to readjust the force that press a material or replace the spring pressure to make it work. 2) Measures to reduce the springback hardware stamping is chosen, the mechanical properties of the elastic modulus of the yield point small stamping materials with steady; Increase the calibration process, using the calibration curve instead of free bending; Metal stamping materials for annealing before bending, make the cold work hardening material softening in advance before forming; If the shape deformation occurred during stamping process and difficult to eliminate; You should replace or repair the rake of convex die and concave die, and intensive gap is equal to the minimum material thickness; Die and workpiece, the contact area decreases surface contact between the punch and artifacts; Metal stamping processing both bending parts cracks 1) Countermeasures to eliminate the metal stamping bending area is the outside of the burr, burr can lead to the region of stress concentration, reduce the bending deformation; Clear the area of the burr; On one side of the burr on the bending area inside; When bending metal stamping best make bending direction and material fiber direction ( Rolling rolling direction) Vertical; Not too small bending radius, in case of quality allows make radius increase; Curved billet surface should be clean, no obvious bulge and scars; When bending the intermediate annealing process, make its eliminate internal stress, produces little after soften the bending crack; When bending must be coated with lubricant for large bending parts, in order to reduce the friction in the process of bending. 【 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
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