Author(s):
1. Ranko Radonjic, Republic of Srpska, Bosnia and Herzegovina
2. Milentije Stefanović, Faculty of Engineering, University of Kragujevac, Sestre Janjić 6, 34000 Kragujevac, Srbija 2IMW Ins, Serbia

Abstract:
Hole flanging, widely used in the automotive industry, is one of the most important processes in the sheet metal forming. Sometimes, in this process cracks occur at the initial hole edge. In this study, numerical simulations have been used to analyze the hole flanging of circular plates with a pre-determined initial hole at the center of sheet metal. Necessary data on mechanical properties of the workpiece material (St 14 according to DIN standard) for process modeling were determinated by an experiment. According to obtained results, a model of the hole flanging process for single sheet metal thickness was defined. Numerical simulation results include dependency between the maximum punch load and punch stroke for different hole diameters.

Thematic field:
PRODUCTION TECHNOLOGIES AND ENGINEERING

Opening paper:
Yes

Date of abstract submission:
21.02.2011.

Number of visits:
851

Conference:
11^th International Conference on Accomplishments in Mechanical and Industrial Engineering

Applied paper from author