engleski

Bending in two stages

In the manufacturing of working parts by metal forming there are various methods that cause different procedures and ways of bending process. Elastic part of deformation causes springback of sheet metal plate which affects form and accuracy of bended sheet metal plate. The important criterion in validation of bended parts is angle of springback of sheet metal plate. The important criterionin validation of bended parts is angle of springback of sheet metal plate. As a measure for angle accuracy, it can be taken into account a relative error of bending angle. For theimprovement of accuracy model that compensates mechanical springback is used. The influence of mechanical springback on bending angle ca be eliminated with, bending sheet metal plates with smaller angle than one desired so after the springback sheet metal plate takes desired bending angle. The following elements influence on the bending process: force of bending/calibration, die configuration, work piece geometry, product properties and friction. Bending process of shett metal plate St1403 was simulated with FEM method.

sheet metal plate; bending; v-die; finite element model

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