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Optimization of Wire Electrical Discharge Machining (WEDM) Process Parameters Using Desirability and Factor Analysis


Affiliations
1 Dept. of Industrial Engg., Anna University, Chennai, India
2 Dept. of Production Engg., St. Peters Engg. College, Avadi, Chennai, India
     

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The objective of this study is to select the optimal combination of machining parameters in Wire Electrical Discharge Machining (WEDM) process such that machining performance gets increased. Here the machining performances i.e. responses are measured in terms of Metal Removal rate (MRR), Surface Finish (SF) and Kerf (Cutting width). The most critical factors that affect performance measures are identified as Input peak voltage, Pulse-ON time, Pulse-OFF time, Dielectric fluid pressure, Wire feed, Wire speed and Servovoltage. Eighteen experimental trails based on L18 (21 × 37) orthogonal array are conducted and the corresponding responses are measured. Classical methods like factor analysis and desirability index are used for solving this multi-objective problem. Finally the results of two methods are compared and the best combination is chosen.
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  • Optimization of Wire Electrical Discharge Machining (WEDM) Process Parameters Using Desirability and Factor Analysis

Abstract Views: 202  |  PDF Views: 0

Authors

V. Jai Ganesh
Dept. of Industrial Engg., Anna University, Chennai, India
R. Raju
Dept. of Industrial Engg., Anna University, Chennai, India
S. Natarajan
Dept. of Production Engg., St. Peters Engg. College, Avadi, Chennai, India
S. Bharathvasan
Dept. of Production Engg., St. Peters Engg. College, Avadi, Chennai, India
P. Chandrasekar
Dept. of Production Engg., St. Peters Engg. College, Avadi, Chennai, India

Abstract


The objective of this study is to select the optimal combination of machining parameters in Wire Electrical Discharge Machining (WEDM) process such that machining performance gets increased. Here the machining performances i.e. responses are measured in terms of Metal Removal rate (MRR), Surface Finish (SF) and Kerf (Cutting width). The most critical factors that affect performance measures are identified as Input peak voltage, Pulse-ON time, Pulse-OFF time, Dielectric fluid pressure, Wire feed, Wire speed and Servovoltage. Eighteen experimental trails based on L18 (21 × 37) orthogonal array are conducted and the corresponding responses are measured. Classical methods like factor analysis and desirability index are used for solving this multi-objective problem. Finally the results of two methods are compared and the best combination is chosen.