Supporting plate edge radius and internal hole diameter relation effect on the springback in incremental forming, part B

AL-Mustansiriya University, Engineering College, Mechanical Engineering Department, Baghdad, Iraq

^* Corresponding author: k.i.abass@uomustansiriyah.edu.iq

Abstract

Incremental Forming, IF technology is a method for producing complex 3D-dimensional sheet profiles. Compared to conventional forming process, IF has some advantages, such as the punch-die set product deformation is not necessary, lower tools cost, shorter time prototype production, flexibility. The accuracy of the incremental forming products is still lower than those produced by the conventional forming process. One of the main parts of the IF tools-set is the supporting tools. The product profile accuracy limits the simplicity or complexity of the supporting tools. When the product profile does not contain a horizontal surface, the simple supporting tool can be used. If the product profile is more complex, the supporting tools should include more details. The present work introduces the effect of supporting plate radiuses in SPIF, Single Point Incremental Forming process. The supporting plate is used to investigate the effect of springback during the forming process. Aluminum sheet metals (A1025) are used for manufacturing the products. The study objective is to understand the springback behavior, which is affected by supporting tools. The strain distributions of the final deformed product section at each step size have been analyzed and evaluated in detail.