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This paper presents the experimental program and measured results, obtained model, statistic analysis and some graphics for springback angle of common sheet metal. There were considered three bending parameters: bending’s angle, sheet’s thickness and radius’ punch. The obtained model is interactive second order polynomial ones. There are also presented some observations and a few relevant conclusions regarding the obtained results. Keywords— statistic modeling; V – banding; spring back behavior; smallest squares method

Statistical modelling of the spring back behavior for bending of v-shaped parts from common sheet metal