Experimental Study on WEDM with SiC Nano-Mixed Powder Working Fluid
The work fluid of SiC nano-mixed powder is adopted to the HS-WEDM Test of Cr12MoV Die Steel.The research ana-lyzes the effect of pulse width,pulse current,peak current and mixed powder concentration on cutting process and finds that the cutting speed of SiC nano-medium is increased by 21.16%and the surface roughness of SiC nano-medium is reduced by 15.05%under the processing conditions of pulse width 45µs,6 times pulse interval,peak current 25A and mixed powder concentration 0.3g/L.The analysis shows that the intervention of nanoparticles improves the discharge conditions between the electrodes and in-creases the machining stability and the cutting speed through enlarging discharging-gap.At the same time,the intervention of nanoparticle improves the surface processing quality through increasing the spark discharge channel between the electrodes and dispersing the discharging points.
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