A Semi-Analytic Model to Predict and Compensate Springback in the 3D Stretch Bending Process

With the increase of using aluminum alloys and high strength steels to replace traditional steels, precise prediction of sheet springback and corresponding compensation methods become more and more important for die design because these material' s higher ratio of yield strength to elastic modulus causes more serious springback problems. In this paper, a semi‐analytic springback prediction and compensation model based on in‐process measurement...