Abstract
Springback is an inevitable phenomenon in multi-point forming, it affects the forming accuracy seriously. The precision of formed parts can be improved by modifying the die profile. The method of springback compensation for multi-point dies which formed cylindrical parts was studied utilizing theoretical analysis, numerical simulations and experiments. In order to accurately form cylindrical parts with specified parameters, the springback compensation formula of multi-point dies was studied. The upper and lower dies were adjusted according to the formula. Comparing the formed parts obtained from numerical simulation and experiment with the target part, the results show that this method can control the forming error within 1 mm guiding the forming process of cylindrical parts in practice, the problem of shape error caused by springback was solved effectively.
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