Morteza Khaleghi and Babak Seyed Aghazadeh and Hosein Bisadi
Efficient Oxyhydrogen Mixture Determination in Gas Detonation Forming
1748 - 1754
2013
7
8
International Journal of Mechanical and Mechatronics Engineering
https://publications.waset.org/pdf/17152
https://publications.waset.org/vol/80
World Academy of Science, Engineering and Technology
Oxyhydrogen is a mixture of Hydrogen (H2) and Oxygen (O2) gases. Detonative mixtures of oxyhydrogens with various combinations of these two gases were used in Gas Detonation Forming (GDF) to form sheets of mild steel. In die forming experiments, three types of conical dies with apex angles of 60, 90 and 120 degrees were used. Pressure of mixtures inside the chamber before detonation was varied from 3 Bar to 5 Bar to investigate the effect of predetonation pressure in the forming process. On each conical die, several experiments with different percentages of Hydrogen were carried out to determine the optimum gaseous mixture. According to our results the best forming process occurred when approximately 5070. Hydrogen was employed in the mixture. Furthermore, the experimental results were compared to the ones from FEM analysis. The FEM simulation results of thickness strain, hoop strain, thickness variation and deformed geometry are promising.
Open Science Index 80, 2013