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A Comparative Experimental Study on Fast Hole near Dry EDM of Stavax with Different Dielectric Coupled with Surface Response Curves


Affiliations
1 MGM’S Research Centre, Nanded, India
2 Department of Production Engineering and Industrial Management, College of Engineering, Pune, India
     

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This paper presents comparative experimental study on machining characteristics of through holes (1000 micron) produced on special alloy steel, Stavax, thick plate with different types of dielectrics. Fast hole rotary Near Dry EDM (NDEDM) machine using tubular hollow brass electrodes are used for machining. Several holes are drilled using identical input parameters based on full factorial design of experiment procedure with four center points. Corresponding values of Material Removal Rate (MRR), Tool Wear Rate (TWR), MRR /TWR ratio & % Electrode Ratio are calculated and compared. The empirical relationship for above responses are developed using Regression Analysis. Surface Response Curves are plotted to compare response of interest. The results revealed that MRR,TWR & MRR/TWR (λ) ratio depends up on appropriate selection of input parameters as well as selection of dielectric.

Keywords

Near Dry Electro Discharge Machining (NDEDM), MRR, TWR, Surface Response Curves.
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  • A Comparative Experimental Study on Fast Hole near Dry EDM of Stavax with Different Dielectric Coupled with Surface Response Curves

Abstract Views: 296  |  PDF Views: 0

Authors

S. P. Lathkar
MGM’S Research Centre, Nanded, India
B. Rajiv
Department of Production Engineering and Industrial Management, College of Engineering, Pune, India
B. B. Ahuja
Department of Production Engineering and Industrial Management, College of Engineering, Pune, India
S. K. Basu
Department of Production Engineering and Industrial Management, College of Engineering, Pune, India

Abstract


This paper presents comparative experimental study on machining characteristics of through holes (1000 micron) produced on special alloy steel, Stavax, thick plate with different types of dielectrics. Fast hole rotary Near Dry EDM (NDEDM) machine using tubular hollow brass electrodes are used for machining. Several holes are drilled using identical input parameters based on full factorial design of experiment procedure with four center points. Corresponding values of Material Removal Rate (MRR), Tool Wear Rate (TWR), MRR /TWR ratio & % Electrode Ratio are calculated and compared. The empirical relationship for above responses are developed using Regression Analysis. Surface Response Curves are plotted to compare response of interest. The results revealed that MRR,TWR & MRR/TWR (λ) ratio depends up on appropriate selection of input parameters as well as selection of dielectric.

Keywords


Near Dry Electro Discharge Machining (NDEDM), MRR, TWR, Surface Response Curves.