Bauschinger Effect on Springback of Clad Sheet Metals in Draw Bending

Springback prediction of titanium tube bending considering Bauschinger effect and Young's modulus variation

Numerical and Experimental Investigations on Springback of U-bending of DP600 Steel Alloy Sheet

The most prominent feature of sheet material forming process is an elastic recovery phenomenon during unloading which leads to springback and side wall curl. Therefore evaluation of springback and side wall curl is mandatory for production of precise products. In this paper, the effects of some parameters such as friction coefficient, sheet thickness, yield strength of sheet and blank-holder fo...

Springback Effect Prediction in Wipe Bending Process of Sheet Metal: a Ga-ann Approach

Sheet metal is one of the most important semi-finished products used in automobiles, domestic appliances, aircraft and other familiar products. Therefore sheet metal forming technology is an important engineering discipline in the area of mechanical engineering. In sheet metal forming, wipe bending process plays a major role in which the sheet metal tries to return to its original shape after r...

A Study of Accuracy in an Intelligent V-Bending Process for Sheet Metals-Change in Young's Modulus due to Plastic Deformation and Its Effect on Springback-

An intelligent V-bending process developed by the authors is briefly described and the importance of change in Young's modulus due to plastic deformation, which influences the amount of springback and therefore the accuracy, is emphasized. The change in Young's modulus in simple tension of a cold rolled steel sheet is experimentally investigated by affixing strain gauges on the specimen. It is ...

Analytical prediction of springback based on residual differential strain during sheet metal bending

As the springback of sheet metal during unloadingmay cause deviation from a desired shape, accurately predicting springback is essential for the design of sheet stamping operations. Finite-element models have not been successful in predicting springback; hence there is a need for analytical models to make such predictions. In this study, a model based on differential strains after relief from t...