27-10-2014, 10:19 AM
Abstracts: This project reports on a process parameter optimization of small deep hole drilling of Inconel 718 using the EDM drilling. The parameters such as peak current, pulse on-time, duty factor and electrode speed were taken for optimize. The experimental data was taken from the research paper published in springer publication. The experiments were planned using central composite design (CCD) procedure. The output responses measured were material removal rate (MRR) and depth averaged surface roughness (DASR). Mathematical models were derived for the above responses using response surface methodology (RSM). The results revealed that MRR is more influenced by peak current, duty factor and electrode rotation, whereas DASR is strongly influenced by peak current and pulse on time. Finally, the parameters were optimized for maximum MRR with the desired surface roughness value using desirability function approach. We use genetic algorithm to optimize the above parameter.