6 Parametric optimization of machining characteristics of titanium alloy in WEDM
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Sudip Banerjee
Abstract
Current experimental study examines the influence of different process parameters on kerf width during wire electro discharge machining (WEDM) process of titanium grade 12. Taguchi-based L27 orthogonal array is employed to formulate the experimental design. Four parameters (pulse on time, pulse off time, wire feed, and gap voltage) and three levels of each selected variables are considered to conduct the experimental work. Signal-to-noise ratio hypothesis is employed in this study. Main effect plot and interaction plot are generated to find optimal experimental condition to minimize kerf width and interaction effect on kerf width. Main effect plot suggests the optimality for minimized kerf width as Ton= 4 μs, Toff = 12 μs, WF= 8 m/min, and V = 50 V. Interaction plot suggests that interaction is present for all experimental conditions. ANOVA analysis is employed to evaluate significant process parameters and percentage contribution of considered parameters within the experimental limit. ANOVA analysis reveals that pulse on time is most important parameter having 61.88% contribution. Surface plot and contour plots are also studied. Finally, confirmation test is conducted to evaluate the importance of developed model. Confirmation test reveals 0.2405 dB enhancement in S/N ratio compared to initial condition.
Abstract
Current experimental study examines the influence of different process parameters on kerf width during wire electro discharge machining (WEDM) process of titanium grade 12. Taguchi-based L27 orthogonal array is employed to formulate the experimental design. Four parameters (pulse on time, pulse off time, wire feed, and gap voltage) and three levels of each selected variables are considered to conduct the experimental work. Signal-to-noise ratio hypothesis is employed in this study. Main effect plot and interaction plot are generated to find optimal experimental condition to minimize kerf width and interaction effect on kerf width. Main effect plot suggests the optimality for minimized kerf width as Ton= 4 μs, Toff = 12 μs, WF= 8 m/min, and V = 50 V. Interaction plot suggests that interaction is present for all experimental conditions. ANOVA analysis is employed to evaluate significant process parameters and percentage contribution of considered parameters within the experimental limit. ANOVA analysis reveals that pulse on time is most important parameter having 61.88% contribution. Surface plot and contour plots are also studied. Finally, confirmation test is conducted to evaluate the importance of developed model. Confirmation test reveals 0.2405 dB enhancement in S/N ratio compared to initial condition.
Chapters in this book
- Frontmatter I
- Preface V
- Contents VII
- 1 Environmental aspects related to nonconventional machining processes 1
- 2 Vibration assisted machining: turning, drilling, cutting, and laser polishing 25
- 3 Abrasive waterjet machining of dissimilar materials stacked in a hybrid structure 91
- 4 Magnetic abrasive finishing process 119
- 5 Electrical discharge machining of silicon: current progress and future trends 139
- 6 Parametric optimization of machining characteristics of titanium alloy in WEDM 171
- About the editor 189
- Index 191
Chapters in this book
- Frontmatter I
- Preface V
- Contents VII
- 1 Environmental aspects related to nonconventional machining processes 1
- 2 Vibration assisted machining: turning, drilling, cutting, and laser polishing 25
- 3 Abrasive waterjet machining of dissimilar materials stacked in a hybrid structure 91
- 4 Magnetic abrasive finishing process 119
- 5 Electrical discharge machining of silicon: current progress and future trends 139
- 6 Parametric optimization of machining characteristics of titanium alloy in WEDM 171
- About the editor 189
- Index 191
