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Authors
Affiliations
1 MGM’S Research Centre, Nanded, IN
2 Department of Production Engineering and Industrial Management, College of Engineering, Pune, IN
Source
Manufacturing Technology Today, Vol 13, No 8 (2014), Pagination: 3-11
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.
