The continuous demand of shape complexity, product accuracy and extended tools life has led to a widespread use of auxiliary systems in sheet metal stamping. Nevertheless, their performances are often inadequate, making their use a compromise between process efficiency and stability. The paper focuses on a new magneto-rheological actuator design. Both analytical and numerical approaches are developed to evaluate load response and to optimize the magnetic field interaction. A physical prototype according to the design outputs is manufactured and tested at different dynamic conditions. Finally, magnetic force values obtained from FE model and experimental tests are compared.
Active control of blankholder in sheet metal stamping
Brun M.;Ghiotti A.;Bruschi S.;
2021
Abstract
The continuous demand of shape complexity, product accuracy and extended tools life has led to a widespread use of auxiliary systems in sheet metal stamping. Nevertheless, their performances are often inadequate, making their use a compromise between process efficiency and stability. The paper focuses on a new magneto-rheological actuator design. Both analytical and numerical approaches are developed to evaluate load response and to optimize the magnetic field interaction. A physical prototype according to the design outputs is manufactured and tested at different dynamic conditions. Finally, magnetic force values obtained from FE model and experimental tests are compared.Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
