Analysis of surface characteristics of AISI D2 tool steel material using electric discharge machining process with single-wall carbon nanotubes

Authors:
  • SPS. Prabhu
    S. Prabhu
  • BVB.K. Vinayagam
    B.K. Vinayagam
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Abstract
Recent developments in EDM have opened up new avenues for finishing of hard and brittle materials with nanosurface finish, high tolerance and accuracy. A single-wall carbon nanotube (SWCNT) is having high electrical conductivity. The carbon nanotube is mixed with dielectric in EDM process to analyse the surface characteristics like surface roughness, microcracks in AISI D2 tool steel workpiece materials which is very much used in moulds and dies. Experimental results indicate that an excellent machined finish can be obtained by setting the machine parameters at low pulse energy. Furthermore, the SEM application yielded information about the depth of the microcracks is particularly important in the post treatment of AISI D2 tool steel machined by EDM. Later, the parameters are optimised using MINITAB 15 software and regression equations are compared with and without SWCNTs.