Abstract
This research work is focused on finding the variation of surface roughness and root-mean-square roughness of aluminium metal matrix composite which is reinforced with TiB2 material for drilling holes using copper electrode in electric discharge machine (EDM). The friction stir casting process is carried out to prepare the specimens of 93% of Al6061 reinforced with 6% TiB2. Full factorial design of experiments is conducted by considering the four input parameters namely current (A), gap voltage (V), depth of cut (d) and pulse duration (T) at five different levels. The 3-dimensional surface texture and roughness are measured using white layer interferometer for all the drilled holes, and the values are obtained using Gwyddion software. The results indicate if the current value and depth of cut increase, the value of the average surface roughness and the root-mean-square roughness also increases, whereas the surface roughness is inversely proportional to the discharge gap between the tool and work piece.
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Acknowledgements
This work is carried out at Shunmuga Precision Forging (ISO 9001:2008 & ISO 14001:2004 and BS OHSAS 18001:2007 Certified) a sister concern of SASTRA Deemed University, Thanjavur, Tamil Nadu, INDIA. Authors would like to thank the management of SASTRA Deemed University, Dr. R. Venkatraman, Director, SPF, Thanjavur and the technical assistant who have helped in carrying out the experiments in EDM machine and not having any conflict of interest in publishing this research work.
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Sathiya Narayanan, N., Hari Vignesh, J., Navin, R.I., Ramesh Kumar, S., Dinesh Babu, P., Pradeesh, N. (2019). Surface Characteristics of Drilled Holes in Al–TiB2 Metal Matrix Composites Using Electric Discharge Machine. In: Vijay Sekar, K., Gupta, M., Arockiarajan, A. (eds) Advances in Manufacturing Processes. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-13-1724-8_9
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DOI: https://doi.org/10.1007/978-981-13-1724-8_9
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