Blank-Holder Force Optimization for Improving the Stability of Deep Drawing
Journal Title: RECENT - Year 2009, Vol 10, Issue 25
Abstract
The explicit finite element method is utilized to simulate the sheet-metal deep drawing process of a flanged cup. The problem is time scaled for more computational efficiency of the simulation. The results of the simulation are compared with experimental results as well as with the results of another implicit finite element simulation for validation. A lot of explicit finite element simulations are used to determine the technological window for the blank holder force and the blank thickness. Investigating the range of blank thickness deviation, it appears to be good choice for objective function corresponding to the process stability. An optimization problem is formulated for searching a stable and reliable forming process with constraints for wrinkling and fracture. The optimal solution is found with high efficiency by an automated computer procedure.
Authors and Affiliations
Ivelin IVANOV, Svetlana PASKALEVA
Keywords
Related Articles
- EP ID EP97048
- DOI -
- Views 84
- Downloads 0
2D Mathematical Model for the Simulation of Centrifugally Cast Part Solidification
The paper discusses the particularities of the mathematical modelling of centrifugally cast part solidification. The principle of 2D mathematical modelling of centrifugally cast tubular part solidification is presented....
Insolvency - Solution for the Activity Continuation of the Companies Seriously Affected by the Crisis
The economic crisis began to render itself visible in the number of companies having entered under the incidence of the law concerning insolvency. The financial blockage and the impossibility of paying one’s obligations...
Romanian SMEs and the Economic Crisis
The transition of the Romanian economy towards a market economy was difficult, complex and sometimes contradictory. The need for a new institutional and legislative space was a long-term process. Sometimes, instead of co...
Research on the Efficiency of Thermally Insulated Feeders
The paper discusses the influence of thermal insulation of feeders on the solidification of cast parts. The employed method was computer simulation of alloy solidification. Several casting variants were analyzed involvin...
Biosensors Based on Surface Plasmon Resonance Phenomenon: A Theoretical Review
Surface Plasmon’s are waves that propagate along the surface on a conductor, and have been studied intensively. The phenomenon has been utilized in studies of the properties of surfaces and thin films devices and, in par...