Determination and Modelling of the Most Suitable Parameters That Effect Springback in U-Bending Operations
Selin Yıldırım Hakan Gürün Hakan Dilipak
AbstractThe use of advanced high strength steels in industrial applications has been gradually increasing. In bending operations, it is extremely important to obtain parts at accurate dimensions. Depending on the properties of the material and operation used, bending process results with springback. In this study, the effects of punch radius, sheet material thickness, and material type on springback in U-bending operations were investigated. Springback values of the materials were determined by analyzes using Deform software. DP600, DP1000 and JAC270 sheet materials were used for bending analyzes. In addition, the effects of bending parameters on springback were identified using the Taguchi method. Studies have been carried out based on the Taguchi L27 vertical index. The effects of bending parameters on springback were evaluated by using variance analysis (ANOVA) and the main effect graph with the 95% reliability. Finally, a regression analysis was performed to estimate springback values and a model was created.