Influence of process parameters of wire EDM on surface finish of Ti6Al4V

Ti6Al4V is an alloy of titanium that offers high strength to weight ratio and excellent corrosion resistance which makes it of greater commercial value. It is widely used in the areas where high strength to weight ratio is of prime importance such as aerospace and automobile. Wire electric discharge...

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Bibliographic Details
Main Authors: Hareesh, K., Nalina Pramod, K.V., Linu Husain, N.K., Binoy, K.B., Dipin Kumar, R., Sreejith, N.K.
Format: Conference Proceeding
Language:English
Subjects:
Optical profilometer
Surface roughness
Ti6Al4V
WEDM
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Summary:Ti6Al4V is an alloy of titanium that offers high strength to weight ratio and excellent corrosion resistance which makes it of greater commercial value. It is widely used in the areas where high strength to weight ratio is of prime importance such as aerospace and automobile. Wire electric discharge machining (WEDM) is generally used for machining of Ti6Al4V alloy to obtain intricate shapes required for various applications. The present work focuses on studying the surface characteristics of Wire electric discharge machined Ti6Al4V alloy. Wire EDM has been done by varying few important process parameters such as feed rate, wire speed and voltage. Two different levels of wire speed and voltage and five different levels of feed rates were considered and the experiments were conducted using full factorial design. The post surface topography was analyzed using a non-contact optical profilometer and the quantitative roughness parameters such as Ra, Rq, Rz, Rp and Rv were analyzed. Variation of each roughness parameters were plotted against different process parameters. Main effect plot and interaction plot for Ra value against process parameters was plotted and optimized the process parameters of Wire EDM to obtain best surface finish. It was observed from the main effect plot that wire speed and feed rate are the most critical factors affecting the average roughness value. The optimum Wire EDM process parameters for machining of Ti6Al4V was concluded as low feed rate, high voltage and high wire speed within the limits of parameters considered for the study. Selection and/or Peer-review under responsibility of International Conference on Sustainable materials, Manufacturing and Renewable Technologies (i-SMaRT 2021)
ISSN:2214-7853
2214-7853
DOI:10.1016/j.matpr.2021.04.590