Abstract:
For any process, modelling is the best way to investigate the effect
of various parameters on its performance measures. The numerical modelling
has been the subject of interest for researchers for a long time as compared to
other techniques and hence more work has been recorded in the field of EDM
using this technique. In numerical analysis, a fraction of energy transfer is a
critical parameter and it depends on the workpiece-tool combination.
Researchers have assumed constant value or given range for this parameter but
no exact value has been reported in any literature. This paper presents a novel
approach to estimate the fraction of energy transfer to the workpiece during the
EDM process using a combination of experimental results and finite element
analysis (FEA). To validate the model, confirmation experiments were carried
out which showed good agreement between simulation and experimental
results.
