Abstract
The present work was undertaken to investigate and characterize the machining parameters (such as surface roughness, etc.) of uni-axially pressed commercially pure titanium sintered powder metallurgy components. Powder was uni-axially pressed at designated pressure of 840 MPa to form cylindrical samples and the green compacts were sintered at 0.001 mbar for about 4 h with sintering temperature varying from 1350 to 1450 °C. The influence of the sintering temperature, pulse-on and pulse-off time at wire-EDM on the surface roughness of the preforms has been investigated thoroughly. Experiments were conducted under different machining parameters in a CNC operated wire-cut EDM. The surface roughness of the machined surface was measured and critically analysed. The optimum surface roughness was achieved under the conditions of 6 μs pulse-on time, 9 μs pulse-off time and at sintering temperature of 1450 °C.
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Acknowledgements
Authors thankfully acknowledge the financial support provided by C.S.I.R., New Delhi under Major Research Project Grant [Sanction Letter No. 22(0587)/12/EMR-II dated 02.04.2012] without which this work could not been attempted.
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Das, A., Sarkar, S., Karanjai, M. et al. Application of Box–Behnken Design and Response Surface Methodology for Surface Roughness Prediction Model of CP-Ti Powder Metallurgy Components Through WEDM. J. Inst. Eng. India Ser. D 99, 9–21 (2018). https://doi.org/10.1007/s40033-017-0145-0
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DOI: https://doi.org/10.1007/s40033-017-0145-0