Experimental Investigation of Drawbead Effect on Springback in Profile of Double Circular, Rectangular and Triangular Bending Sheet Metal Forming Processes

Springback is considered as one of the most common problems in metal forming processes, which poses an inaccuracy product angle during assembling parts. The estimation springback difficult to predict for formed parts since it depends on many factors such mechanical properties, sheet thickness, and die angle. In this work, experimental investigation drawbead different material thicknesses use lubricants grease, oil wax have been studied analyzed. Samples aluminum specimens with 120 mm length, 30 width thickness 0.5, 0.7 0.8 were selected study. Design manufacturing double bending profile Circular, Rectangular, Triangular applied firstly without then drawbead. results showed that a given configuration, reduced existing