Abstract
Wire EDM is widely used to machine variety of materials including MMCs with highest precision. Cryogenic treatment is used to improve the material properties of materials. In this paper kerf width is studied for 6 hrs and 12 hrs cryogenically treated Al/SiCp with 10%, 20% and 30% volume of silicon carbide particle samples. The input parameters used are pulse on time, pulse off time and % volume fraction of reinforced particles. Design of experiment is done by Response Surface Methodology. Kerf width is one of the major response parameters deciding precision in machined parts. Results shows Pulse off-time, pulse on-time were found to be significant on kerf. Kerf is reduced by 3.42% in 12 hrs cryogenic compared to 6 hrs cryogenic samples.
Keywords: Al/SiC, Cryogenic treatment, Cutting rate, Kerf, RSM, Wire EDM