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Calculation of Springback and Its Variation in Channel Forming Operations

1988; Linguagem: Inglês

10.4271/880526

2688-3627

Mary K. Mickalich, Michael L. Wenner,

Laser and Thermal Forming Techniques

An approximate plane strain analysis of the springback of sheet metal which has been bent under tension around a small radius is presented. The tensile load can be applied either before the bending takes place (called a «preload») or after bending («postload»). Some of the material and process parameters which govern springback are identified, and it is shown that postloads are always more effective than preloads in reducing spring-back