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SPRINGBACK EFFECT

Sheet metal forming is one of the most common metal forming process. The accuracy is an important factor for the sheet metal industries. One of the major causes for the fabrication of inconsistent sheet metal part is springback i.e. the elastic strain recovery in the material after the tooling is removed. Springback of sheet metal parts after forming causes deviation from the designed target shape and produces downstream quality problems and assembly difficulties. So control of the springback in sheet metal forming is one of crucial manufacturing problem.

Present work uses Finite Element Analysis (FEA) to analyze the effect of springback in sheet metal forming process of corrugated sheets. The corrugated sheets are modeled using HYPERFORM with considering material property, sheet thickness, tooling geometry and process parameters. The result shows that effect of springback is varied by varying the punch force, die width and duration of punch load.

 



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