An upper-bound prediction of tangential force in Single Point Incremental Forming

摘要

In the present work, the upper-bound approach is used to study the deformation zone of Single Point Incremental Forming of truncated cones. The velocity field and the dissipated power of the process are achieved using an assumed deformation zone and streamlines defined by Bezier curves. The tangential force acting on the tool is attained by optimizing the presented upper-bound solution. Then, influences of the effective parameters including vertical pitch, initial thickness, tool diameter, and wall angle on the tangential force are investigated. In order to validate the presented upper-bound solution, predicted tangential forces are compared with experimental data available in literature. The comparison shows an appropriate agreement between them.