A Theoretic Analysis on Metal Sheet Curling by Two-Roller Bending

Sheet curling by two-roller bending technical principle and its shaping process have been analyzed. Based on the simplification of force applied to sheet and sheet deforming,theoretic model of curling by two-roller bending has been set up and formula of springback been derived,the relationship between the diameter of shaped workpiece and mould-roller been established hence a theoretic direction for the application of two-roller bending in production.